Billet Coolant Cap Cover is designed to fit OEM coolant caps in many late model Ford applications. A simple push-on installation, this cover compliments our aluminum stock replacement coolant tanks that utilize OEM cap. (tank part numbers that end with an "S") Fits: Ford coolant cap #'s: 1W138101AA, F6DZ8100A, (Motorcraft # RS103) Intercooler cap #'s: XL3V8101AA, XL3Z8100AA, (Motorcraft # RS517)
