The Turbosmart Ford/Mazda M35x4 black oil cap fits M35x4-threaded filler openings found on some Ford and Mazda engines. Finished in black for subtle engine-bay styling, it functions as a sealing cover to help keep contaminants out of the oil system and retain fluid integrity. Intended as a compatible replacement for M35x4 ports.
Turbosmart Ford/Mazda M35x4 Black Oil Cap