ACDelco GM Original Equipment FC243 (12642516) Dexos 5W30 Engine Oil Filler Cap
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Description
xOverview
Keep your GM engine’s oil system sealed with the ACDelco GM Original Equipment FC243 cap. This cap covers the oil filler opening with a robust seal, available as a GM-recommended replacement for your vehicle’s original component. The cap is designed to fit the GM OE specification for reliable fit, form, and function. When you swap in a GM OE part, you’re choosing consistency across components you rely on every time you start the engine.
Key benefits at a glance
- Creates a tight seal at the oil filler opening to help prevent leaks and spray of oil under heat and pressure.
- GM-recommended replacement, ensuring compatibility with your GM vehicle’s original equipment.
- Built to GM OE standards, delivering the quality, reliability, and durability you expect from GM Original Equipment.
- Precision-made for a proper fit and dependable performance in the crankcase environment.
Design details that matter
The FC243 cap is a simple, dependable cap with a rubber sealing ring. Its design works with both threaded and quarter-turn closures, reflecting a flexible approach to installation. The seal is engineered to resist exposure to engine oils, vibration, and routine temperature changes, helping to maintain a clean, sealed filler neck between services.
- Rubber sealing ring helps keep oil inside and external contaminants out.
- Manufactured to GM OE specification for accurate fit, form, and function.
Usage in daily driving and maintenance
During routine maintenance, replacing a worn filler cap can restore the integrity of the oil system, contributing to a neater engine bay and a more predictable oil-fill experience. The FC243 cap’s robust construction supports repeated removal and reinstallation without losing its seal.
- Real-life scenario: replacing a damaged cap after an oil change to restore proper sealing.
- Environment: designed to withstand common workshop dust, moisture, and temperature cycles found in typical garages and driveways.
Why choose GM Original Equipment from ACDelco
Opting for GM Original Equipment means choosing parts that align with your vehicle’s design intent. The FC243 cap mirrors GM's original reliability and durability, offering confidence that the replacement will perform as intended. This aligns with a broader maintenance approach that emphasizes compatibility, longevity, and a seamless fit with the engine’s oil system.
Installation and care tips
- Design supports both threaded and quarter-turn closures for flexible installation.
- To install, align the cap with the filler neck, engage the threads or perform a light quarter-turn, and snug securely—do not overtighten.
- Inspect the rubber seal periodically; replace if you notice cracking or wear to maintain a strong seal.
FAQ
Q: What is the FC243 filler cap used for?
A: It seals the engine oil filler opening, helping prevent leaks and keeping contaminants out.
Q: Is this a GM Original Equipment replacement part?
A: Yes, it is a GM OE replacement designed to fit GM vehicles as the factory cap.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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