
Oil Filler Cap Oil Filler Screw-In 87-Up GM is an engine oil-fill cap/plug designed to close the compatible valve-cover or oil-fill opening. A secure oil-fill closure helps keep oil contained and prevents dirt from entering the engine while still giving you quick access during routine service.
Match the listed push-in, twist-in or threaded style to the engine/valve-cover opening. Replace damaged grommets or sealing surfaces at the same time if needed to prevent seepage.