{"product_id":"acdelco-gm-original-equipment-fc243-12642516-dexos-5w30-engine-oil-filler-cap","title":"ACDelco GM Original Equipment FC243 (12642516) Dexos 5W30 Engine Oil Filler Cap","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eKeep 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.\u003c\/p\u003e\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCreates a tight seal at the oil filler opening to help prevent leaks and spray of oil under heat and pressure.\u003c\/li\u003e\n  \u003cli\u003eGM-recommended replacement, ensuring compatibility with your GM vehicle’s original equipment.\u003c\/li\u003e\n  \u003cli\u003eBuilt to GM OE standards, delivering the quality, reliability, and durability you expect from GM Original Equipment.\u003c\/li\u003e\n  \u003cli\u003ePrecision-made for a proper fit and dependable performance in the crankcase environment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign details that matter\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRubber sealing ring helps keep oil inside and external contaminants out.\u003c\/li\u003e\n  \u003cli\u003eManufactured to GM OE specification for accurate fit, form, and function.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsage in daily driving and maintenance\u003c\/h3\u003e\n\u003cp\u003eDuring 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.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReal-life scenario: replacing a damaged cap after an oil change to restore proper sealing.\u003c\/li\u003e\n  \u003cli\u003eEnvironment: designed to withstand common workshop dust, moisture, and temperature cycles found in typical garages and driveways.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy choose GM Original Equipment from ACDelco\u003c\/h3\u003e\n\u003cp\u003eOpting 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.\u003c\/p\u003e\n\u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesign supports both threaded and quarter-turn closures for flexible installation.\u003c\/li\u003e\n  \u003cli\u003eTo install, align the cap with the filler neck, engage the threads or perform a light quarter-turn, and snug securely—do not overtighten.\u003c\/li\u003e\n  \u003cli\u003eInspect the rubber seal periodically; replace if you notice cracking or wear to maintain a strong seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the FC243 filler cap used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It seals the engine oil filler opening, helping prevent leaks and keeping contaminants out.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this a GM Original Equipment replacement part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is a GM OE replacement designed to fit GM vehicles as the factory cap.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":42465042169941,"sku":"B0055AP3VQ","price":30.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/acdelco-fc243-dexos-5w30-engine-oil-filler-cap.jpg?v=1777996362","url":"https:\/\/plentytorque.co.uk\/products\/acdelco-gm-original-equipment-fc243-12642516-dexos-5w30-engine-oil-filler-cap","provider":"PlentyTorque","version":"1.0","type":"link"}