• ACDelco GM OE Engine Oil Filler Caps Primary Image
  • ACDelco GM OE Engine Oil Filler Caps Alternate Image 1
  • ACDelco GM OE Engine Oil Filler Caps 360 Image


  • Seals and helps keep oil from leaking out of your engine oil filler opening
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function


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An ACDelco GM Original Equipment Engine Oil Filler Cap is a threaded or quarter-turn cap that seals the oil filler opening on your vehicle’s engine, and is a GM-recommended replacement for your vehicle’s original component. It has a rubber sealing ring that keeps the engine oil and crankcase vapors in, while keeping water and dirt out. This original equipment engine oil filler cap have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.


24 Month/Unlimited Mile Limited Warranty*: Our most common Parts Warranty offers coverage on the majority of our Genuine GM Parts and ACDelco service replacement parts. Effective on parts purchased April 1, 2018 and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.

Learn more about ACDelco warranties:


Will a missing oil filler cap or breather cap cause oil leakage?
Yes, a missing oil filler cap can allow engine oil and vapor to escape, oil leaks can result in engine damage

Can I replace an oil filler cap or breather cap on my own?

Yes, replacing an oil filler cap is a simple process as long as you have the proper oil filler cap for your vehicle.

Could a damaged or missing oil filler cap or breather cap affect engine performance?

Yes, In addition to potential loss of engine oil, some vehicles will idle poorly if the oil filler or breather cap is missing or damaged.


Maintain proper coolant levels and check level monthly (Note: Never attempt to remove a radiator cap while the engine is hot. Serious injury could result).

• Replace coolant with a mixture of antifreeze and water according to the vehicle manufacturer's recommendations.
• Inspect engine belts for cracks or missing sections; check belt tension.
• Evaluate radiator and radiator cap for leaks, corrosion, or a worn cap gasket.
• Examine hoses every 12 months. Look for leaks, cracks or rot. Replace hoses showing signs of wear.
• Tighten any loose clamps. Always replace clamps when replacing hoses.
• Have cooling system inspected immediately if instrument panel-mounted temperature gauge indicates engine overheating.
• Periodically, remove bugs, leaves and other debris from the front of the radiator. They can block airflow and substantially reduce cooling efficiency.




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