EXHIBIT 99.4


                           HLI OPERATING COMPANY, INC.

                                OFFER TO EXCHANGE
                         10 1/2% SENIOR NOTES DUE 2010,
                        WHICH HAVE BEEN REGISTERED UNDER
                     THE SECURITIES ACT OF 1933, AS AMENDED,
                         FOR ALL ISSUED AND OUTSTANDING
                          10 1/2% SENIOR NOTES DUE 2010

TO OUR CLIENTS:


         Enclosed for your consideration is a Prospectus, dated October 30, 2003
(the "Prospectus"), and the related Letter of Transmittal (the "Letter of
Transmittal"), relating to the offer (the "Exchange Offer") of HLI Operating
Company, Inc. ("HLI") to exchange an aggregate principal amount of up to
$250,000,000 of our 10 1/2% Senior Notes due 2010 (the "New Notes"), which have
been registered under the Securities Act of 1933, as amended (the "Securities
Act"), for a like principal amount of our issued and outstanding 10 1/2% Senior
Notes due 2010 (the "Old Notes"), which were issued in offerings under Rule 144A
and Regulation S of the Securities Act that were not registered under the
Securities Act. The Exchange Offer is being extended to all holders of the Old
Notes in order to satisfy certain obligations of HLI contained in the
Registration Rights Agreement, dated as of June 3, 2003, among HLI, the
guarantors party thereto and the initial purchasers of the Old Notes. The New
Notes are substantially identical to the Old Notes, except that the issuance of
the New Notes has been registered under the Securities Act and the transfer
restrictions, registration rights and certain special interest provisions
relating to the Old Notes do not apply to the New Notes.


         These materials are being forwarded to you as the beneficial owner of
the Old Notes held by us for your account but not registered in your name. A
TENDER OF SUCH OLD NOTES MAY ONLY BE MADE BY US AS THE HOLDER OF RECORD AND
PURSUANT TO YOUR INSTRUCTIONS.

         Accordingly, we request instructions as to whether you wish us to
tender on your behalf the Old Notes held by us for your account, pursuant to the
terms and conditions set forth in the enclosed Prospectus and Letter of
Transmittal.


         Your instructions should be forwarded to us as promptly as possible in
order to permit us to tender the Old Notes on your behalf in accordance with the
provisions of the Exchange Offer. The Exchange Offer will expire at 5:00 P.M.,
New York City time, on November 28, 2003, unless the Exchange Offer is extended.
Any Old Notes tendered pursuant to the Exchange Offer may be withdrawn at any
time before the expiration of the Exchange Offer.


         Your attention is directed to the following:

         1. The Exchange Offer is for any and all Old Notes.

         2. The Exchange Offer is subject to certain conditions set forth in the
Prospectus under the caption "The Exchange Offer - Conditions to the Exchange
Offer."




         3. Any transfer taxes incident to the transfer of Old Notes from the
holder to HLI will be paid by HLI Operating Company, Inc., except as otherwise
provided in the Instructions in the Letter of Transmittal.


         4. The Exchange Offer expires at 5:00 P.M., New York City time, on
November 28, 2003, unless the Exchange Offer is extended earlier terminated.


         If you wish to have us tender your Old Notes, please so instruct us by
completing, executing and returning to us the instruction form on the back of
this letter. THE LETTER OF TRANSMITTAL IS FURNISHED TO YOU FOR INFORMATION ONLY
AND MAY NOT BE USED DIRECTLY BY YOU TO TENDER OLD NOTES.





                          INSTRUCTIONS WITH RESPECT TO
                               THE EXCHANGE OFFER


         The undersigned acknowledge(s) receipt of your letter and the enclosed
materials referred to therein relating to the Exchange Offer made by HLI
Operating Company, Inc. with respect to its Old Notes.

         This will instruct you to tender the Old Notes held by you for the
account of the undersigned, subject to the terms and conditions set forth in the
Prospectus and the related Letter of Transmittal.

         Please tender the Old Notes held by you for my account as indicated
below:

                  10 1/2% Senior Notes due 2010 $ ________  (Aggregate Principal
Amount of Old Notes)

                  [ ] Please do not tender any Old Notes held by you for my
account.

                  Dated:  _______________________ ____, 2003


Signature(s):


Print Name(s) here:


(Print Address(es)):


(Area Code and Telephone Number(s)):


(Tax Identification or Social Security Number(s)):



         NONE OF THE OLD NOTES HELD BY US FOR YOUR ACCOUNT WILL BE TENDERED
UNLESS WE RECEIVE WRITTEN INSTRUCTIONS FROM YOU TO DO SO. UNLESS A SPECIFIC
CONTRARY INSTRUCTION IS GIVEN IN THE SPACE PROVIDED, YOUR SIGNATURE(S) HEREON
SHALL CONSTITUTE AN INSTRUCTION TO US TO TENDER ALL THE OLD NOTES HELD BY US FOR
YOUR ACCOUNT.