.APPLICATION CAN BE USED ON OLDER 18 20 25 HP MOTORS IN THE LATE 1960S ERA THRU THE MID 1970'S ERA OF YEARS. THIS PART IS OBSOLETE VINTAGE PART. PLEASE CHECK THE PART NUMBER FOR YOUR APPLICATION.  SOLD AS IS NO RETURNS ABSOLUTELY NO RETURNS SORRY I'M  NOT AMAZON OR WALMART PURCHASE SHIP OPEN TOUCH AND RETURN ON MY $$. WILL SHIP  USPS  MAIL ONLY IN THE LOWER 48 STATES # 1 IN THE WORLD