Be sure to add me to your favorites list!................IF YOU PLAN ON PURCHASING MULTIPLE ITEMS PLEASE USE THE CART SYSTEM, SO WE CAN SHIP THEM TOGETHER.....ORIGINAL GM PART......................KEEP YOUR CAR GM!.....GM REFERENCE NUMBER  16040991.......1986 1987 1988 1989 Corvette C4 factory outside temperature sensor for C68 automatic A/C, DIRTY, used. We ship on weekdays only. Shipping is USPS only, NO EXCEPTIONS. Please email with questions. No local pickup. If a problem arises, please email or call before leaving feedback.  We are in Stuart Florida. NCRS member since 1983. Thanks for looking. (93) in controller box