Motorad Engine Oil Filler Cap P/N:MO77

The Motorad Engine Oil Filler Cap (MO77) seals your engine's oil filler opening. It is a standard-replacement, twist-lock cap that closes off the filler neck on classic 1982-1987 Buick and Oldsmobile 5.0 models. Its job is mechanical: cap the opening and keep the crankcase sealed so oil isn't lost through the filler neck and blow-by vapors stay contained. Built by an OE supplier to factory specifications.

• Twist-lock fit mounts with a simple turn for a tool-free, positive seat on the filler neck
• Pre-installed rubber gasket is designed to seat against the opening and seal it to guard against oil loss and seepage
• Works to contain engine blow-by by keeping the oil filler opening closed during operation
• OE-supplier construction engineered to meet all OEM specifications for dependable, long-term service
• Silver finish with indicator markings for a factory-correct look and easy identification under the hood

Signs this cap may need replacing include an oily mist around the valve cover, drips near the filler neck, or a cap that no longer twists tight. These symptoms can have other causes too, so a quick inspection is wise. If a worn or cracked filler cap is the source of a broken seal, swapping in a fresh cap is an inexpensive way to re-seal the opening.

Fits: 1982-1986 Buick LeSabre 5.0, 1982-1985 Buick Riviera 5.0, 1982-1987 Oldsmobile Cutlass Supreme 5.0, 1982-1985 Oldsmobile Delta 88 5.0, 1986-1987 Buick Regal 5.0. See the Buyer's Guide tab to confirm your exact application.

Replaces / cross-references: 12C25 · 703-1731 · 7031731 · 8077 · 12334507 · 22531828 · 6410957 · P8077 · 10077 · model MO77 · Part Eazy SKU P1350PA-MO-77