COMMON STOCK COMMON STOCK NUMBER SHARES [LOGO] WLFC WILLIS LEASE FINANCE CORPORATION INCORPORATED UNDER THE LAWS OF SEE REVERSE FOR STATEMENTS RELATING THE STATE OF DELAWARE TO RIGHTS, PREFERENCES, PRIVILEGES AND RESTRICTIONS, IF ANY CUSIP 970646 10 5 THIS CERTIFIES THAT SPECIMEN IS THE RECORD HOLDER OF FULLY PAID AND NONASSESSABLE SHARES OF THE COMMON STOCK, $0.01 PAR VALUE, OF WILLIS LEASE FINANCE CORPORATION TRANSFERABLE ON THE BOOKS OF THE CORPORATION BY THE HOLDER HEREOF IN PERSON OR BY DULY AUTHORIZED ATTORNEY UPON SURRENDER OF THIS CERTIFICATE PROPERLY ADDRESSED. THIS CERTIFICATE IS NOT VALID UNTIL COUNTERSIGNED AND REGISTERED BY THE TRANSFER AGENT AND REGISTRAR. WITNESS THE FACSIMILE SEAL OF THE CORPORATION AND THE FACSIMILE SIGNATURES OF ITS DULY AUTHORIZED OFFICERS. WILLIS LEASE FINANCE CORPORATION CORPORATE SEAL MARCH 12, 1998 DELAWARE /s/ JAMES D. McBRIDE /s/ CHARLES F. WILLIS CHIEF FINANCIAL OFFICER PRESIDENT AND CHIEF EXECUTIVE OFFICER COUNTERSIGNED AND REGISTERED. AMERICAN STOCK TRANSFER & TRUST COMPANY TRANSFER AGENT AND REGISTRAR BY AUTHORIZED SIGNATURE A statement of the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights as established, from time to time, by the Certificate of Incorporation of the Corporation and by any certificate of determination, the number of shares constituting each class and series, and the designations thereof, may be obtained by the holder hereof upon request and without charge from the Corporate Secretary of the Corporation at the principal office of the Corporation The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM - as tenants in common UNIF GIFT MIN ACT Custodian ------- ------ (Cust) (Minor) TEN ENT - as tenants by the under Uniform Gifts to Minors entireties Act JT TEN - as joint tenants with ------------------------------------- right of survivorship (State) and not as tenants in UNIF TRF MIN ACT Custodian common ------- (Cust) (until age) ) -------- under Uniform Transfers to ------------ (Minor) Minors Act ---------------- (State) Additional abbreviations may also be used though not in the above list. FOR VALUE RECEIVED, ______________ hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE - -------------------------------------- - -------------------------------------- - ------------------------------------------------------------------------------- (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) - ------------------------------------------------------------------------------- - ------------------------------------------------------------------------------- Shares - ------------------------------------------------------------------------- of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint Attorney - ----------------------------------------------------------------------- to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. Dated --------------------------------- X -------------------------------------- X -------------------------------------- NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. Signature(s) Guaranteed By ___________________________________________ THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM). PURSUANT TO S.E.C. RULE 17Ad-15.