1
 
   
                        CONFIDENTIAL TREATMENT REQUESTED
    
 
                          OEM ENGINE SUPPLY AGREEMENT
 
     THIS EXCLUSIVE SUPPLY AGREEMENT (the "Agreement") is made and entered into
on the 9th day of July, 1998, by and between GENERAC CORPORATION, a Wisconsin
corporation with its principal office and place of business in Waukesha,
Wisconsin ("Seller") and GENERAC PORTABLE PRODUCTS, INC. (F/K/A GPPC, INC.), a
Delaware corporation ("Buyer"). This Agreement shall be binding as of the date
written above but for purposes of computing time periods and anniversary dates,
the effective date shall be considered to be July 9, 1998.
 
                                    RECITALS
 
     A.  As a result of its purchase from Seller of Seller's portable products
division, Buyer is now engaged in the marketing, manufacture and sale of
welders, pressure washers, Consumer Portable Generators and other similar
portable equipment. For the purpose of this Agreement "Consumer Portable
Generators" are defined as; air-cooled generators currently of the type in
production at the portable products division at time of signing the Agreement.
 
     B.  Seller is engaged in the business of manufacturing its GN series single
cylinder engines, in particular, models GN-191, GN-220, GN-360 and GN-410 which
are suitable for powering such equipment (the "Engines").
 
     C.  In connection with Buyer's purchase of Seller's portable products
division, Buyer desires that Seller manufacture the Engines requested by Buyer
from time to time according to Seller's established specifications for the
Engines (the "Specifications") and Seller has adequate facilities, expertise and
personnel to manufacture the Engines according to the Specifications.
 
     D.  Buyer desires to purchase the Engines from Seller, and Seller desires
to manufacture and sell the Engines to Buyer on the terms and subject to the
conditions set forth below.
 
                                   AGREEMENTS
 
     In consideration of the above recitals and the mutual covenants and
valuable consideration contained herein, the parties agree as follows:
 
     1.  SUPPLY OF PRODUCTS.
 
   
          (a) SALE AND PURCHASE OF ENGINES.  Seller shall manufacture and sell
     to Buyer and Buyer shall purchase from Seller the Engines during the term
     of this Agreement pursuant to the terms and conditions set forth herein.
     Buyer shall purchase a minimum of * * * Engines during each annual period
     of this Agreement (the "Minimum Purchase Obligation"). In addition to the
     Minimum Purchase Obligation, in each annual period following the fifth
     annual period of this Agreement, Buyer shall purchase from Seller an
     aggregate number of Engines at least equal to 25% of the total number of
     engines purchased by Buyer during such period (the "25% Requirement"),
     provided, however that during such annual periods Buyer shall nevertheless
     not purchase less than the Minimum Purchase Obligation. For purposes of
     determining whether Buyer has satisfied the 25% Requirement in any annual
     period following the fifth annual period of this Agreement, Seller shall
     have the right to select an independent accounting firm (the "Accounting
     Firm"), reasonably accept-
    
   
*** = Omitted and filed separately with request for confidential treatment.
    
   2
 
     able to Buyer, to perform an audit of Buyer's total engine purchases for
     the period in question. If Seller and Buyer cannot agree upon an
     independent accounting firm to act as the Accounting Firm, each of Buyer
     and Seller shall select an independent accounting firm and the two firms so
     selected shall select a third independent accounting firm which shall be
     the Accounting Firm. The Accounting Firm shall conduct an audit of Buyer's
     total engine purchases for the annual period in question and shall
     determine whether the 25% Requirement has been satisfied for the applicable
     period. The conclusion of the Accounting Firm shall be final and binding
     upon Buyer and Seller. Buyer agrees to cooperate fully with the Accounting
     Firm in connection with conducting any audits pursuant to this section,
     including, without limitation, making available to the Accounting Firm such
     books and records of Buyer as the Accounting Firm may reasonably request in
     connection with its audit. If Buyer desires to purchase more than the
     Minimum Purchase Obligation, or, after the fifth annual period hereof, more
     than the 25% Requirement (if greater than the Minimum Purchase Requirement)
     during any annual period of this Agreement, Seller shall, subject to
     section 3(c) of this Agreement, use its reasonable efforts to manufacture
     and sell to Buyer such additional quantity of the Engines as Buyer may
     request.
 
          (b) EXCLUSIVE SUPPLY REQUIREMENT.  As long as Buyer satisfies the
     Minimum Purchase Obligation and, after the fifth annual period, the 25%
     Requirement (if greater than the Minimum Purchase Obligation), Seller
     agrees not to sell Engines to any other original equipment manufacturer
     ("OEM") for purposes of incorporation into welders, pressure washers,
     Consumer Portable Generators or other products approved by Seller (the
     "Exclusive Supply Requirement"). If Buyer does not comply with the Minimum
     Purchase Obligation or, after the fifth annual period, the 25% Requirement
     (if greater than the Minimum Purchase Obligation), the Exclusive Supply
     Requirement shall be void for the remainder of the term of the Agreement
     unless (i) the Buyer purchased at least 80% of the Minimum Purchase
     Obligation or, after the fifth annual period, the 25% Requirement (if
     greater than the Minimum Purchase Obligation) during the period in question
     and (ii) during the immediately following annual period Buyer purchases the
     Minimum Purchase Obligation or, after the fifth annual period, the 25%
     Requirement (if greater than the Minimum Purchase Obligation) plus the
     number of Engines by which it failed to meet the Minimum Purchase
     Obligation or, after the fifth annual period, the 25% Requirement (if
     greater than the Minimum Purchase Obligation) during the preceding annual
     period. If Buyer fails to meet the Minimum Purchase Obligation or, after
     the fifth annual period, the 25% Requirement (if greater than the Minimum
     Purchase Obligation) during any annual period and, if applicable, fails to
     correct the shortfall during the immediately following annual period,
     Seller's sole remedy shall be voidance of the Exclusive Supply Requirement
     as provided in this section 1(b), provided, this sentence shall not be
     interpreted to restrict Seller's ability to increase gross margin pursuant
     to section 4(a)(i).
 
          (c) ADDITIONAL REQUIREMENTS FOR WELDERS.  Seller and Buyer recognize
     that, heretofore, sales of welders by Seller have been nominal and that
     Buyer will undertake to substantially increase the sale of welders. Seller
     and Buyer also recognize that in the event Buyer is unable to do so, Seller
     should be availed of the opportunity to sell Engines to other manufacturers
     of welders. Commencing on the first anniversary of this Agreement and
     within thirty (30) days following the end of each calendar quarter after
     such first anniversary, Buyer shall provide to Seller a written report as
     to the number of Engines shipped with welders during such calendar quarter.
     If during any
 
                                        2
   3
 
   
     consecutive four (4) calendar quarters covered by such reports, Buyer ships
     fewer than * * * welders equipped with one of the Engines, Seller may sell
     Engines to any other OEM of welders.
    
 
          (d) RETAINED RIGHTS OF SELLER.  Notwithstanding the exclusivity
     requirements in section 1(b) above, Seller shall have the right to sell
     engines through its own Service Distributor and Dealer Network for any
     application based on repower and service promulgated prices. Buyer
     acknowledges that the provisions of this paragraph may or will benefit
     Buyer in that Seller's service network, which services Buyer's customers,
     is thereby further supported. Nothing in this Agreement will be construed
     to prevent Seller from selling its engines, including the Engines, to any
     other purchaser, original equipment manufacturer or otherwise, and at any
     price it elects, so long as such engines and Engines are not for use with
     welders, pressure washers or Consumer Portable Generators. Seller retains
     the right to use and sell GN engines to other air-cooled generator
     applications, including, but not limited to, R.V., Industrial Mobile,
     Telecom, Home Stand-By or any other type of residential, commercial or
     industrial application.
 
     2.  TERM OF AGREEMENT.  Subject to the provisions for termination set forth
elsewhere in this Agreement, this Agreement shall commence on the date first
written above and continue for 95 years (the "Initial Term"). After completion
of the Initial Term, this Agreement shall automatically renew for consecutive 3
year periods ("Renewal Term") unless either party gives written notice of its
intent to terminate this Agreement to the other party at least 6 months prior to
the expiration of the Initial Term or any Renewal Term. Notwithstanding the
foregoing, in the event of a sale of Seller's assets or Seller's stock as
described in section 12 below (whether during the Initial Term or any Renewal
Term), upon the closing date of such sale the remaining term of this Agreement
shall be the longer of 5 years or the remainder of the Initial Term 5 years
subject to 3 year renewal terms as described in the second sentence of this
section.
 
     3.  PRODUCT ORDERS.
 
          (a) PURCHASE ORDERS.  Purchase orders will be issued by Buyer on the
     first business day of each month specifying Buyer's requirements for the
     fourth month following the month in which the purchase order is issued. In
     the event Buyer desires to issue a purchase order for a quantity of Engines
     20% greater than Buyer's average monthly orders for the previous twelve
     (12) months, Buyer must provide Seller with written notice of such order no
     less than six months prior to the start of shipment. All purchase orders
     for Engines to be manufactured and delivered shall be firm and may not be
     canceled or modified by Buyer without the written permission of Seller;
     provided, however, that Purchase orders may be modified by Buyer to provide
     for a later delivery date (not in excess of 60 days) upon notice to Seller
     at least 60 days prior to the requested delivery date.
 
          Purchase orders issued by the Buyer to the Seller shall specify the
     Engines being ordered in some minimum package quantity as specified by
     Seller, the required delivery dates, and the address to which Seller's
     invoice shall be sent. Any provision, term or condition set forth on
     Buyer's purchase order or on any acknowledgment, invoice or other document
     or communication provided by Buyer which is inconsistent with the terms of
     this Agreement, or is not addressed herein, is void and of no effect.
 
          (b) SELLER'S PURCHASE ORDER ACKNOWLEDGMENT.  Seller's purchase order
     acknowledgment shall reflect the Buyer's purchase order number. A separate
     purchase order
 
                                        3
   
     *** = Omitted and filed separately with request for confidential treatment.
    
   4
 
     acknowledgment shall be rendered for each purchase order and shall be
     transmitted by Seller to the address specified on the purchase order. Each
     purchase order acknowledgment rendered by Seller shall separately identify
     the Engines by model number, quantities thereof, unit prices, and total
     amount due for such Engines. Applicable sales or use taxes shall also be
     reflected.
 
          (c) FORECASTS.  Prior to the beginning of each calendar quarter, Buyer
     shall provide seller with a rolling written forecast of its estimated
     requirements for the Engines in each of the next four (4) calendar quarters
     (the "Quarterly Forecast"). Each Quarterly Forecast shall contain an update
     of the immediately preceding Quarterly Forecast with respect to the
     quarters referred to in such preceding Quarterly Forecast.
 
          In addition to the Quarterly Forecasts, if Buyer intends to purchase
     in any future four (4) calendar quarter period (the "Expansion Period")
     more than 120% of the number of Engines actually purchased in the four (4)
     calendar quarters just ended, Buyer shall provide Seller with Buyer's
     estimated requirements for the Engines in the Expansion Period a minimum of
     six months prior to the start of the Expansion Period (the "Expansion
     Forecast").
 
          Notwithstanding anything to the contrary in this Agreement, Seller
     shall have no obligation during the applicable period to manufacture and
     sell to Buyer any number of Engines greater than the Quarterly Forecast or
     the Expansion Forecast as applicable. Buyer shall use its best efforts to
     ensure that firm orders under section 3(a) of this Agreement conform to the
     estimates in the latest forecast.
 
     4.  PRICES AND PAYMENT TERMS.
 
          (a) ENGINE PRICES.
 
             (i) Buyer shall pay Seller for the Engines in accordance with the
        prices set forth in Schedule A which are subject to modification from
        time to time in accordance with the terms of this Agreement. At least 30
        days prior to each annual anniversary of this Agreement, the parties
        shall negotiate in good faith to determine the price for Engines for the
        upcoming year based on the expected cost of raw materials, freight,
        insurance, direct labor, appropriate indirect manufacturing operating
        expenses and overhead (the "Costs of Production"), plus a gross margin
        of 20%. Following the fifth annual period of this Agreement, Seller
        shall have the continuing right to increase the gross margin up to a
        total of 23%. The Seller shall not have the right to increase the gross
        margin pursuant to the immediately preceding sentence if Seller is in
        violation of the Exclusive Supply Requirement at the time of such
        increase unless the Exclusive Supply Requirement has been voided in
        accordance with section 1(b) in which case Seller may exercise its right
        under the immediately preceding sentence. Any agreed upon change to the
        price for the Engines shall be applied to Engines purchased during the
        following twelve-month period.
 
             The Costs of Production shall be determined by Seller in its sole
        discretion. Buyer shall be entitled, at the time of each regularly
        scheduled price renegotiation, to review (subject to the confidentiality
        provisions of this Agreement) Seller's records that directly pertain to
        Seller's calculation of the Costs of Production. If Buyer does not agree
        with Seller's calculation of the Costs of Production, Buyer's sole
        remedy shall be to purchase engines from
 
                                        4
   5
 
        another supplier. All prices for Engines supplied under this Agreement
        are F.O.B. Seller's plant in Whitewater, Wisconsin.
 
             (ii) On February 15 and August 15 of each year during the term of
        this Agreement, if Seller's Costs of Production have increased or
        decreased during the previous July through December or January through
        June period, respectively (the "Production Period") due to (a) changes
        in the price of aluminum and/or (b) changes in the price of foreign
        components for the Engines caused by changes in currency rates, Seller
        shall pay to Buyer (in the case of a decrease in such Costs of
        Production) or Buyer shall pay to Seller (in the case of an increase in
        such Costs of Production) an amount calculated in accordance with the
        formula set forth in Schedule C.
 
             (iii) Seller agrees to use commercially reasonable efforts to work
        with the lowest cost suppliers of the materials and services used
        directly in connection with manufacturing the Engines in order to keep
        the Costs of Production at reasonable levels. Seller agrees to
        investigate any potential suppliers suggested by Buyer. Seller retains
        the right to reject suppliers that do not provide materials and/or
        services, as applicable, of the quality and performance level which, by
        Seller's sole determination, is at least at the same level of quality
        and performance provided by Seller's existing suppliers of such
        materials and/or services.
 
          (b) NON-RECURRING ENGINEERING CHARGE.  Buyer agrees to pay Seller a
     non-recurring engineering fee with respect to Seller's preparation for
     manufacture of the specific engine components exclusive to Buyer and for
     the acquisition of certain tooling, equipment and fixtures in connection
     with the manufacturing of such components. Upon Buyer's request, Seller
     shall provide Buyer with the amount of such fee, reasonable detail of the
     fee and the payment terms of such fee (the "Engineering Proposal"). Buyer
     shall own title to certain tooling, equipment and fixtures detailed in the
     Engineering Proposal and for which the payment of associated non-recurring
     engineering fees has been received.
 
          (c) PAYMENT TERMS.  The terms of payment of Seller's invoices shall be
     net 30 days from Seller's invoice date. If Buyer disputes any invoice in
     good faith, in whole or in part, Buyer shall promptly notify the Seller in
     writing and shall set forth the basis for such dispute. The parties will
     then use their best efforts to resolve the dispute expeditiously. Any such
     dispute not resolved within 30 days may be submitted to binding arbitration
     in accordance with section 13 of this Agreement. Any invoice balance which
     remains unpaid after 30 days shall bear interest at the rate of 1.5% per
     month until paid.
 
          (d) SUSPENSION OR TERMINATION FOR FAILURE TO PAY INVOICES WHEN
     DUE.  In the event that Buyer fails to pay any invoice, other than amounts
     which are in good faith dispute, when due, Seller may, at its option,
     immediately suspend its performance under the Agreement five days after
     providing written notice to Buyer of the overdue amount if such amounts are
     not paid within the five day period. Seller shall be under no obligation to
     resume performance until all overdue amounts, other than amounts in good
     faith dispute, are paid. Seller may, at its option, immediately terminate
     this contract if Buyer fails to pay any such amounts due which are not in
     good faith dispute within 15 days of the written notice of the overdue
     amount.
 
                                        5
   6
 
     5.  TESTING, DELIVERY, USE, PRIVATE LABELS AND SERVICE AND PARTS.
 
          (a) SELLER TESTING.  All Engines shall be inspected and tested by
     Seller for conformity to the Specifications prior to shipment to the Buyer.
 
          (b) DELIVERY.  All Engines manufactured by Seller under this Agreement
     shall be delivered F.O.B. Seller's plant, Whitewater, Wisconsin, and upon
     such delivery to carrier, title and risk of loss shall pass to Buyer.
 
          (c) RISK OF RESALE AND NO INDEPENDENT RIGHT TO RESELL.  Risk of resale
     of the Engines shall be with the Buyer. Under no circumstances shall Seller
     assume any liability whatever in the event that Buyer is unable to resell
     the Engines, and Buyer shall have no right to return the Engines to Seller
     under such circumstances. Buyer shall resell Engines solely as components
     in its welders, pressure washers, Consumer Portable Generators and other
     products approved by Seller. Buyer shall not, and shall not have the right
     to, resell Engines independently of its welders, pressure washers, Consumer
     Portable Generators or other products approved by Seller.
 
          (d) APPROVAL OF APPLICATIONS.  Seller shall have the right to approve
     all applications and uses of the Engines and Buyer shall request and
     receive such approval in writing prior to any application or use of the
     Engines not already approved hereby. Seller hereby approves the application
     and use of the Engines as components in Buyer's existing product lines of
     welders, pressure washers and Consumer Portable Generators to the extent
     the Engines are used therein as of the date hereof.
 
          (e) PRIVATE LABELS.  Buyer may not use any private label on the
     Engines without the written consent of Seller. Seller hereby consents to
     the private label "Craftsman." Approved private labels may only be used in
     connection with the incorporation of Engines as components in Buyer's
     welders, pressure washers, Consumer Portable Generators and other products
     approved by Seller.
 
          (f) SERVICE AND PARTS.  Seller shall, to the extent required by this
     Agreement and to the extent requested by Buyer and agreed to by Seller,
     provide repair services for the Engines and Buyer shall utilize Seller for
     the performance of such repair services. Additionally, Seller shall sell to
     Buyer and Buyer shall purchase from Seller spare and replacement parts for
     the Engines, in the quantities which Buyer may request and which Seller may
     agree to sell, at the price at which Seller sells such spare and
     replacement parts to its master parts distributors, which may be modified
     by Seller from time to time.
 
     6.  WARRANTIES.
 
          (a) LIMITED WARRANTY.  The Engines will be subject to Seller's
     standard limited warranty for the Engines which is set forth on Schedule B
     (the "Limited Warranty"). Seller retains the right to modify the Limited
     Warranty at any time and from time to time. SELLER MAKES NO OTHER
     WARRANTIES OR REPRESENTATIONS, EITHER EXPRESSED OR IMPLIED, WITH RESPECT TO
     THE ENGINES, INCLUDING THEIR DESIGN, QUALITY, PERFORMANCE, MERCHANTABILITY,
     OR FITNESS FOR A PARTICULAR PURPOSE.
 
          (b) WARRANTY EXCLUSIONS.  Seller makes no warranty of any kind with
     respect to:
 
             (i) Repairs for Engines necessitated by normal wear and tear,
        damage in transit or accident, through abuse, misuse or negligence of
        Buyer or its
 
                                        6
   7
 
        customers, or by failure of any of those persons to maintain or use the
        Engines in accordance with Seller's written instructions; or
 
             (ii) Engines that have been modified in any manner after shipment
        by Seller.
 
          (c) RETURN AUTHORIZATION.  Engines warranted by Seller shall be
     repaired or replaced at Seller's option and expense upon presentation of
     evidence that demonstrates to Seller's reasonable satisfaction a breach of
     the Limited Warranty. Prior to return of any Engine to Seller, Buyer shall
     obtain a return authorization from Seller and comply with Seller's return
     authorization procedures in force at the time of the return. Seller shall
     have no obligation to repair or replace Engines returned without a return
     authorization.
 
          (d) LIMITATION OF REMEDIES.  Buyer's exclusive remedy for any defect
     in the Engines or breach of Seller's warranty under section 6(a) of this
     Agreement is, at Seller's option, either refund of the price paid by Buyer
     for the defective Engines, repair of the defective Engines sufficient to
     cause them to meet the Specifications or replacement of the defective
     Engines with equivalent Engines that meet the appropriate Specifications.
 
          IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INDIRECT, SPECIAL,
     INCIDENTAL, CONSEQUENTIAL OR OTHER DAMAGES, INCLUDING ANY LOST PROFITS OF
     BUYER, IN CONNECTION WITH SELLER'S BREACH OF THIS AGREEMENT IN ANY WAY,
     INCLUDING, BUT NOT LIMITED TO, THE FAILURE OF THE ENGINES TO MEET THE
     SPECIFICATIONS OR SELLER'S FAILURE TO DELIVER THE ENGINES WHEN DUE OR AT
     ALL.
 
          The parties acknowledge that the limitation of damages contained in
     this paragraph is a separate item of their agreement. The parties
     acknowledge their intent that this limitation of damages shall be severable
     from the limited warranty and shall be enforceable even if the limitations
     in the limited warranty are held to be unenforceable.
 
     7.  CONFIDENTIAL AND PROPRIETARY INFORMATION.
 
          (a) OWNERSHIP OF INFORMATION.  Buyer acknowledges that all information
     disclosed to it by Seller pursuant to this Agreement, including all
     information pertaining to the design of and the manufacturing process for
     the Engines and all information pertaining to the conduct of Seller's
     business and affairs, shall, at all times, both during and after the
     termination of this Agreement, however occurring, remain the exclusive
     property of Seller and that Buyer shall not acquire any proprietary
     interest in such information.
 
          Seller acknowledges that all information disclosed to it by Buyer
     pursuant to this Agreement, including all information pertaining to the
     conduct of Buyer's business and affairs, shall, at all times, both during
     and after the termination of this Agreement, however occurring, remain the
     exclusive property of Buyer and that Seller shall not acquire any
     proprietary interest in such information.
 
          (b) ACCESS TO CONFIDENTIAL INFORMATION.  Neither party shall, directly
     or indirectly, disclose, or permit anyone to disclose, any Confidential
     Information disclosed or made available by the other party, and shall
     carefully guard and keep secret all such Confidential Information. Neither
     party shall, at any time, allow anyone other
 
                                        7
   8
 
     than the other party hereto, or those authorized by the other party, to
     have access to or use any Confidential Information disclosed or made
     available by the other party. Each party shall use all reasonable efforts
     to protect the proprietary nature of any and all Confidential Information
     of the other.
 
          Except as expressly provided otherwise in this Agreement, neither
     party shall copy, modify, transcribe, store, sell, lease or otherwise
     transfer or distribute any Confidential Information of the other in whole
     or in part without prior authorization in writing from the other party.
     Both parties shall use the Confidential Information only during the term of
     this Agreement and solely for the purpose of carrying out the intent of
     this Agreement.
 
          For purposes of this Agreement, the term "Confidential Information"
     includes, without limitation, a party's techniques, processes, procedures,
     operations and other proprietary information relating to research and
     development, design, manufacturing, operations, marketing and finances.
     Upon termination of this Agreement, however occurring, both parties shall
     surrender to the other party all documents including, but not limited to,
     plans, specifications, literature, samples, documents and other tangible
     things, relating to Confidential Information disclosed or made available by
     the other party and all supplies which are the property of the other party.
 
          (c) LIABILITY FOR DISCLOSURE.  Neither party shall be liable for
     disclosure to others of Confidential Information disclosed or made
     available to it by the other party if the information: (i) can be
     demonstrated by contemporaneous written records to have been in the other
     party's possession or available to the other party prior to the receipt of
     same from Buyer or Seller as the case may be; (ii) can be demonstrated by
     clear and convincing evidence to have been received from a third party
     having no obligation to hold the same in confidence; (iii) can be
     demonstrated by clear and convincing evidence to have been generally known
     or generally available to the public prior to the date of the disclosure;
     (iv) becomes generally known or generally available to the public through
     no act or failure to act on the part of either party or its affiliates; or
     (v) is required by a valid order of a court of law to be disclosed.
 
          If any Confidential Information of a party is required by law to be
     disclosed by the other party hereto (as contemplated by section 7(c)(iv)),
     the disclosing party shall provide the nondisclosing party with prompt
     notice of such disclosure and take such legally available steps as may be
     necessary to resist or narrow such request and/or to procure a court order
     stipulating that the Confidential Information required to be disclosed
     shall be used solely for the purposes for which the court order was issued.
 
          (d) NO GRANT OF LICENSE.  No rights or obligations other than those
     expressly stated shall be implied from this Agreement. In particular, no
     license or other right is hereby granted, either express or implied, to one
     party by the other party (i) with respect to the other party's Confidential
     Information or (ii) under any patent, patent application, copyright,
     trademark, or other proprietary right or intellectual property right now or
     hereafter controlled by the other party.
 
          (e) Buyer understands and agrees that the Engines embody design and
     manufacture information including, but not limited to, design or production
     concepts, methods, materials, structures, assemblies or similar information
     which is proprietary to Seller (the "Design Information"). Buyer shall not
     reverse engineer or disassemble the Engines and shall not use, nor permit
     any third party to use, the Design
 
                                        8
   9
 
     Information for any purpose other than those necessary to further the
     transactions contemplated by this Agreement. Under no circumstances shall
     the Buyer have the right to use the Design Information to design or
     manufacture any product, or assist any third party in manufacturing any
     product, which competes with the Engines.
 
          (f) SPECIFIC PERFORMANCE.  The Parties agree that breach of this
     section 7 by either party would cause irreparable damage to the other party
     and that monetary damages alone would not provide the injured party with an
     adequate remedy for such breach. Therefore, if any controversy arises
     concerning the rights or obligations of either party under this section 7,
     such rights or obligations may be specifically enforced by an injunction
     order issued by a court of competent jurisdiction. Such remedy, however,
     shall be in addition to any other remedy to which the injured party may be
     entitled.
 
     8.  INDEMNIFICATION.
 
          (a) BREACH OF THIS AGREEMENT.  Subject to the limitations set forth in
     section 6(d) of this Agreement, each party agrees to indemnify and hold the
     other party, its affiliates, shareholders, directors, officers, employees,
     customers, successors and assigns harmless against all liabilities, claims,
     costs, damages, losses and expenses, including reasonable legal fees and
     related costs, which the indemnified party incurs by reason of the
     defaulting party's failure to perform its obligations under this Agreement.
 
          If a claim, demand or suit is presented or filed against the
     nondefaulting party and indemnification by the nondefaulting party is
     sought pursuant to this provision, the nondefaulting party shall give
     prompt notice to the defaulting party and provide reasonable assistance to
     and cooperation with the defaulting party, at the defaulting party's cost,
     in the settlement or defense of the claim, demand or suit. The right of
     indemnification shall be extinguished if the nondefaulting party fails to
     give notice of the claim, demand or suit, or settles the same without the
     written consent of the defaulting party.
 
          (b) INDEMNIFICATION BY BUYER.  Buyer agrees to indemnify and hold
     harmless Seller, its officers, employees and agents, from and against all
     loss, damages, liability and expense incurred by reason of any claims,
     actions, suits or governmental investigations or proceedings including, but
     not limited to, product liability claims, brought against or involving them
     or any of them, which relate to or arise out of the manufacture of the
     Engines by Seller for the Buyer. Provided, however, that Buyer shall not be
     obligated to indemnify Seller for any claim which arises out of Seller's
     failure to comply with the limited warranty for the Engines described in
     section 6 above or failure to manufacture the Engines in compliance with
     the Specifications.
 
          (c) PRODUCT LIABILITY.
 
             (i) INSURANCE.  During the term of this Agreement, and for a period
        of three years thereafter, each party will at its own expense purchase
        (if it has not already purchased) and maintain general product liability
        insurance, naming the other party as an additional insured. The coverage
        shall have limits of liability of no less than $5 million and shall be
        placed with an insurance carrier having a Best's rating of no less than
        "A". Each party shall provide a copy of the insurance policy to the
        other party upon the other party's request.
 
                                        9
   10
 
     9.  TERMINATION.  In addition to any other provision of this Agreement
which grants a right of termination, the following shall also constitute bases
for termination:
 
          (a) A material default in the performance of an obligation under this
     Agreement, provided such default continues for more than [60][120] days
     after written notice is provided by the nondefaulting party.
 
          (b) If either party becomes the subject of a voluntary bankruptcy or
     insolvency proceeding; if such proceeding is involuntary, then the right of
     termination shall exist only if such proceeding has continued unstayed for
     a period of 60 consecutive days after filing.
 
          Upon the expiration or termination of this Agreement as set forth
     above, Seller will complete Engines on order at the date of termination,
     and Buyer shall purchase such Engines from Seller. Expiration or
     termination of this Agreement for any reason shall not affect any
     liabilities or obligations of either party which have accrued at the date
     of expiration or termination or which by their nature survive expiration or
     termination (including, without limitation, the obligations under sections
     6, 7, 8, 9 and 13).
 
     10.  FORCE MAJEURE.  Neither party (nor any successor to either party,
including, without limitation the Purchasing Party (as defined in section 12))
to this Agreement shall be liable for delay or failure to perform under this
Agreement which results from any occurrence or event which could not have been
reasonably avoided including, without limitation, accident, action of the
elements, act of God, civil unrest, enemy action, epidemic, explosion, fire,
flood, insurrection, strike, lockout or other labor trouble or shortage, natural
catastrophe, riot, unavailability or shortage of material, equipment or
transportation, war, act, demand or requirement of law or of the Government of
the United States or any other competent governmental authority, or any other
similar cause beyond such party's control, if the party in default makes
reasonable efforts to remove or overcome the effects of such occurrence or
event. If a party believes that any one or more of the above occurrences or
events shall cause a delay or prevent its performance hereunder, it shall
promptly notify the other party in writing of such fact.
 
     11.  RELATIONSHIP OF THE PARTIES.  The relationship established between the
parties by this Agreement during its term shall be solely that of vendor and
vendee. Under no circumstances shall the contractual relationship between the
parties be deemed or construed as one of agency, joint venture, employment or
otherwise. This Agreement does not give either party any right to act as a
representative or agent of the other party or any authority to incur or create
any obligation in the name of or on behalf of the other party.
 
     12.  ASSIGNMENT, SUCCESSORS AND ASSIGNS AND SALE OF SELLER'S
BUSINESS.  Neither party may assign this Agreement or any rights or obligations
hereunder without the prior written consent of the other party; provided,
however, Seller or Buyer, as applicable, may assign, upon written notice to the
other party Buyer and without the other party Buyer's consent, this Agreement or
its interest herein to any affiliate or to any third party succeeding to its
Seller's business. Subject to the foregoing, this Agreement shall bind and inure
to the benefit of Buyer, Seller, and their respective representatives, heirs,
successors and assigns. If Seller desires to sell or transfer more than 50% of
its stock (except for transfers among existing shareholders of Seller or any
trusts for the benefit thereof and among existing shareholders of Seller and
their spouses, siblings and lineal descendants or any trusts for the benefit
thereof) or sell or transfer substantially all of its assets used in connection
with manufacturing of the Engines (a "Change of Control"), Seller agrees to
 
                                       10
   11
 
have the party purchasing or receiving the stock or assets (the "Purchasing
Party") accept assignment of this Agreement subject to the term adjustment
provision contained in section 2, above and the terms of this section 12. After
a Change in Control, and only after a Change in Control, Buyer shall have the
right to have the Costs of Production for any annual period ending subsequent to
such Change of Control audited by an accounting firm (which shall be mutually
acceptable to Buyer and the Purchasing Party or selected in accordance with the
procedure set forth for selecting the Accounting Firm pursuant to section 1(a)
of this Agreement). The sole purpose of the audit conducted pursuant to the
immediately preceding sentence shall be to confirm that Costs of Production for
the Engines reflect a reasonable allocation of Costs of Production between the
Engines and the Purchasing Party's other (non-Engine) products. After a Change
of Control, and only after a Change of Control, Buyer and the Purchasing Party
shall negotiate in good faith and establish mutually agreeable delivery
schedules for Engines to be purchased by Buyer from the Purchasing Party
pursuant to this Agreement (the "Schedules"). The Schedules shall contain terms
for delivery that are in all material respects consistent with the manner in
which Engines are delivered to Buyer by Seller prior to the Change of Control.
Following a Change of Control, subject to the provisions of section 10, if the
Purchasing Party fails to deliver Engines in accordance with the Schedules,
Buyer shall be entitled to indemnification pursuant to and in accordance with
section 8(a) of this Agreement.
 
     13.  ARBITRATION OF DISPUTES.  All disputes or claims arising out of,
resulting from or related to this Agreement shall be finally settled under the
Rules of the American Arbitration Association (the "Rules") by an arbitrator
appointed in accordance with the Rules. If the parties fail to so nominate a
sole arbitrator within 30 days from the date when the claimant's request for
arbitration has been communicated to the other party, the sole arbitrator shall
be appointed in accordance with the Rules. Any decision made by such an
arbitrator within the scope of his or her authority shall be binding upon the
parties. The cost for such arbitrator shall be borne equally between the
parties, but all other costs involved in the arbitration shall be borne
separately by the parties. Each party shall enter into an arbitration agreement
providing reasonable protection to the arbitrator. The place of arbitration
shall be in Milwaukee County, Wisconsin, USA. Judgment on any award rendered by
the arbitrator may be entered by any court of competent jurisdiction. The
parties irrevocably consent and submit to the jurisdiction of any local, state
or federal court in Milwaukee County, Wisconsin, USA.
 
     14.  NOTICES.  Notices permitted or required to be given under this
Agreement shall be deemed sufficient if sent by mail or other delivery service,
facsimile, or, if promptly confirmed in writing, by telephone, addressed to the
parties as set forth below. Notices so given shall be effective upon (a) receipt
by the party to which notice is given or (b) on the fifth day following the date
such notice was posted or transmitted, whichever occurs first. Notices shall be
addressed as follows:
 
          If to Seller:  Generac Corporation
                         P.O. Box 8
                         Highway 59 at Hillside Road
                         Waukesha, WI 53187
                         Attn: Chief Executive Officer
 
          If to Buyer:
                         Attn:
 
or to such other address as the parties may designate in writing.
 
                                       11
   12
 
     15.  ENTIRE AGREEMENT.  This Agreement and the exhibits attached hereto
constitute the entire understanding between the parties with reference to the
subject matter hereof and no statements or agreements, oral or written made
prior to the signing of this Agreement shall vary or modify the written terms
hereof. No amendment or modification of this Agreement or release form any of
the provisions hereof shall be valid unless made in writing and signed by the
parties.
 
     16.  WAIVER.  The failure of either party at any time to require
performance by the other party of any provision hereof will in no way affect the
right to require such performance at any time thereafter, nor will the waiver by
either party of a breach of any provision hereof constitute a waiver of any
succeeding breach of the same or any other provision, or constitute a waiver of
the provision itself.
 
     17.  SEVERABILITY.  If any provision of this Agreement is held to be
invalid or unenforceable for any reason, the parties agree that such invalidity
or unenforceability shall not affect any other provision of this Agreement, the
remaining terms, covenants and provisions hereof shall remain in full force and
effect.
 
     18.  GOVERNING LAW.  This Agreement and any disputes hereunder shall be
governed and construed in accordance with the internal laws of the state of
Wisconsin.
 
     19.  HEADINGS.  The headings used in this Agreement are for convenience and
reference purposes only and shall not affect the meaning or interpretation of
this Agreement.
 
     20.  COUNTERPARTS.  This Agreement may be executed in counterparts, each of
which shall be deemed an original, but both of which taken together shall
constitute one and the same instrument.
 
     The parties intending to be bound hereby have caused this Agreement to be
signed by their duly authorized representatives on the day and year first
written above.
 
                                          GENERAC CORPORATION
 
   
                                          BY /s/ ROBERT D. KERN
    
                                             -----------------------------------
                                             Robert D. Kern
                                             Chairman of the Board
 
                                          BUYER GENERAC PORTABLE
                                          PRODUCTS, INC.
                                          (F/K/A GPPC, INC.)
 
   
                                          BY /s/ ERIC R. WILKINSON
    
                                             -----------------------------------
                                             Eric R. Wilkinson
                                             President
 
                                       12
   13
 
                               LIST OF SCHEDULES
 

          
Schedule A:  Prices
Schedule B:  Limited Warranty
Schedule C:  Formula for Calculation of Changes in Certain Costs of
             Production

 
                                       13
   14
 
                                                                      SCHEDULE A
 
           OEM ENGINE SUPPLY AGREEMENT -- ENGINE SELL PRICE SCHEDULE
 
   


MODEL #          DESCRIPTION         SELL
- -------          -----------         ----
                              
EHB 00946 0  19HT3N6N01NN000N02R      * * *
EHB 00947 0  19HT3Y5N01NN000N02R      * * *
EHB 00948 0  19HT3YN505NN000N02R      * * *
EHB 00949 0  19HT3YN601NN000N02R      * * *
EHC 00950 0  22HS4NAN02YY000N03R      * * *
EHC 00951 0  22HT3N6N02NN000N03R      * * *
EHC 00952 0  22HT3Y6N02NN000N03R      * * *
EHC 00953 0  22HT3Y6N02NN000N03R      * * *
EHC 00954 0  22HT3Y502NN000N03R       * * *
EHC 00955 0  22HT3YN602NN000N03R      * * *
EHC 00956 0  22HT3YN608YN000N03R      * * *
EHC 00983 0  22HT3YNS02NN000N03R      * * *
EHE 00931 0  36HT5Y6N04NN000N05R      * * *
EHE 00932 0  36HT5Y6N04NN000N11R      * * *
EHE 00933 0  36HS6YN604YY000N05R      * * *
EHE 00961 0  36HT5Y6N11NN000N05R      * * *
EHE 00962 0  36HT5Y6N11NN000N11R      * * *
EHF 00934 0  41HT5Y6N06NN000N06R      * * *
EHF 00935 0  41HT5Y6N06NN000N12R      * * *
EHF 00945 0  41HT5Y6N09NN000N06R      * * *
EHF 00957 0  41HT5Y6N09NN000N12R      * * *
EHF 00958 0  41HT5Y6N10NN000N06R      * * *
EHF 00959 0  41HT5Y6N10NN000N12R      * * *
EHF 00960 0  41HS4Y6N10NN000N06R      * * *

    
 
                                       14
   
*** = Omitted and filed separately with request for confidential treatment.
    
   15
 
                                                                      SCHEDULE B
 
                   TWO YEAR LIMITED WARRANTY FOR "GN" ENGINES
 
     Generac warrants to the original purchaser that the "GN" engine will be
free from defects in materials or workmanship for the items and period set forth
below from the date of original purchase. This warranty is not transferable and
applies only to GN-Series Generac warranted engines.
 


                                          CONSUMER*              COMMERCIAL*
                                -----------------------------    -----------
                                                           
Engine                          2 years (2nd year parts only)      1 year

 
     With the exception of European Community Countries, all units bound for
export shall be warranted for one (1) year in consumer applications, and 90 days
in commercial applications as defined below.
 
     *NOTE: FOR THE PURPOSE OF THIS WARRANTY, "CONSUMER USE" MEANS PERSONAL
RESIDENTIAL HOUSEHOLD USE BY ORIGINAL PURCHASER. THIS DOES NOT APPLY TO UNITS
USED FOR PRIME POWER IN PLACE OF UTILITY. "COMMERCIAL USE" MEANS ALL OTHER USES,
INCLUDING PRIME POWER, RENTAL, CONSTRUCTION, COMMERCIAL, AND INCOME PRODUCING
PURPOSES. ONCE AN ENGINE HAS EXPERIENCED COMMERCIAL USE, IT SHALL THEREAFTER BE
CONSIDERED A COMMERCIAL USE ENGINE FOR THE PURPOSES OF THIS WARRANTY.
 
     During said warranty period, Generac will, at its option, repair or replace
any part which, upon examination by Generac is found to be defective under
normal use and service. All transportation costs under warranty, including
return to the factory if necessary, are to be borne by the purchaser and prepaid
by him. This warranty does not include nominal maintenance and service and does
not apply to an engine which has been subjected to improper or unauthorized
installation, misuse, negligence, accident, overloading, overspeeding, improper
maintenance, repair or storage so as, in Generac's judgment, to adversely affect
its performance and reliability.
 
     **NORMAL WEAR: AS WITH ALL MECHANICAL DEVICES, THE GN-SERIES ENGINES NEED
PERIODIC PARTS SERVICE AND REPLACEMENT TO PERFORM WELL. THIS WARRANTY WILL NOT
COVER REPAIR WHEN NORMAL USE HAS EXHAUSTED THE LIFE OF A PART OR AN ENGINE.
 
     There is no other express warranty. Generac hereby disclaims any and all
implied warranties, including but not limited to those of merchantability and
fitness for a particular purpose to the extent permitted by law. The duration of
any implied warranties which cannot be disclaimed is limited to the time period
(one year) as specified in the express warranty. Liability for consequential,
incidental, or special damages under any and all warranties is excluded to the
extent permitted by law. Some states do not allow limitations on how long an
implied warranty lasts, or the exclusions or limitations of incidental or
consequential damages, so the above limitations or exclusions may not apply to
you. This warranty gives you specific legal rights and you may also have other
rights, which vary from state to state.
 
     For service, see your nearest Generac authorized warranty service facility
or call 1-800-333-1322. Warranty service can be performed only by a Generac
authorized service facility. This warranty will not apply to service at any
other facility. At the time of requesting warranty service, evidence of original
purchase date must be presented.
 
                                       15
   16
 
                                                                      SCHEDULE C
 
                     GN ENGINE COMPONENT PRICE ADJUSTMENTS
                 (CRANKCASE, CYL HEAD, GEAR COVER, CRANK, CAM)
 
                   ADJUSTMENT FOR EXCHANGE RATE FLUCTUATIONS
                                      AND
                    ALUMINUM INGOT MARKET PRICE FLUCTUATIONS
 
Component costs are adjusted for fluctuations in aluminum ingot price every six
months based on the following formula.
 
Monthly Al. Rate Deviation = Monthly Avg. Al. Cost -- Base Al. Rate
 
Monthly Al. Consumption = (Al. Weight per engine + 5%) x Monthly volume
 
(Monthly Rate Deviation x Monthly Al. Consumption) + 13% = Total Monthly
Adjustment
 
               Note: Monthly consumption must be calculated by engine model due
to differences in                aluminum weight between models.
 
Component costs are adjusted for fluctuations in currency exchange rates every
six months based on the following formula.
 
Monthly Currency Deviation = Monthly Avg.  Exchange Rate -- Base Exchange Rate
 
(Monthly Currency Deviation x Total Cost of Imported Parts x Monthly Volume) +
13% = Total Monthly Adjustment
 
               Note: Import parts are defined as parts imported into Japan.
Component costs are based in Japanese Yen.
 
                                       16