{"product_id":"acdelco-gm-original-equipment-fc208-12573337-engine-oil","title":"ACDelco GM Original Equipment FC208 (12573337) Engine Oil","description":"\u003cp\u003e\u003cstrong\u003eThe ACDelco GM Original Equipment FC208 (12573337) Engine Oil Filler Cap seals your engine's oil fill opening with GM-specified fit and a rubber gasket to prevent leaks and contamination.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement oil filler cap is designed as a direct-fit component for many GM vehicles, built to the same specifications as the factory-installed part. It restores the factory sealing performance at the oil filler neck, helping keep engine oil and crankcase vapors contained while blocking moisture and road grime from entering the engine. Manufactured to GM Original Equipment standards, the FC208 (12573337) cap aims to deliver reliable service life and correct fitment so routine maintenance remains simple and secure.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does the ACDelco FC208 cap do for my engine?\u003c\/h3\u003e\n\u003cp\u003eThe cap closes and seals the oil filler opening so oil and crankcase vapors stay inside the engine while contaminants stay out. Its rubber sealing ring compresses to form a tight barrier; the threaded or quarter-turn interface matches the vehicle's filler neck for proper engagement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrevents oil seepage and reduces the risk of messy leaks around the filler neck\u003c\/li\u003e\n  \u003cli\u003eContains crankcase vapors to preserve engine ventilation systems\u003c\/li\u003e\n  \u003cli\u003eBlocks water and dirt from entering the oiling system\u003c\/li\u003e\n  \u003cli\u003eFits GM-specified filler necks for correct alignment and rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is this cap different from generic replacements?\u003c\/h3\u003e\n\u003cp\u003eACDelco GM Original Equipment caps are produced to the automaker's fit, form, and function criteria rather than generic standards. That means the materials, sealing geometry, and engagement method mirror what GM used at the factory, which improves reliability and reduces the chance of fitment problems or premature wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMade to GM OE specifications for consistent dimensions and performance\u003c\/li\u003e\n  \u003cli\u003eUses a durable rubber sealing ring matched to the original design\u003c\/li\u003e\n  \u003cli\u003eMinimizes the need for modification or workarounds at installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain the FC208 oil filler cap?\u003c\/h3\u003e\n\u003cp\u003eInstallation is quick: align the cap with the filler neck, then thread or quarter-turn until it seats snugly against the seal. Regular checks during oil changes or routine inspections ensure the seal remains intact and the cap threads are free of debris; replace the cap if the rubber ring shows cracking or compression loss.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean the filler neck before fitting to avoid trapped grit\u003c\/li\u003e\n  \u003cli\u003eHand-tighten until fully seated—do not over-torque to prevent damage\u003c\/li\u003e\n  \u003cli\u003eInspect the rubber seal periodically and replace the cap if degraded\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cap fit my GM vehicle?\u003c\/h3\u003e\n\u003cp\u003eThe FC208 (12573337) is a GM-recommended replacement for specific models and years; verify compatibility with your vehicle’s parts catalog or VIN lookup. When matched correctly, it replicates the factory cap’s engagement style and sealing surface for a direct replacement experience.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck part number 12573337 or FC208 against your vehicle's compatibility list\u003c\/li\u003e\n  \u003cli\u003eConfirm neck type (threaded vs. quarter-turn) to ensure proper fit\u003c\/li\u003e\n  \u003cli\u003eUse dealer or online VIN lookup tools if unsure about fitment details\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Drivers and DIY mechanics who want a straightforward, factory-spec replacement for a worn or missing oil filler cap on compatible GM vehicles. It’s appropriate for routine maintenance, restoration projects, and anyone who prefers original-equipment parts to preserve factory performance and long-term reliability.\u003c\/p\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: Is the FC208 cap a direct replacement for the factory cap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The FC208 (12573337) is manufactured to GM OE specifications and is intended as a direct-fit replacement for compatible GM models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How can I tell if the oil filler cap needs replacing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace if the rubber seal is cracked, the cap no longer seats tightly, or you notice oil seepage or unusual odors from the filler area.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":48086847651998,"sku":"B000C9TTJM","price":30.14,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/acdelco-front-cap-packaging.jpg?v=1785907788","url":"https:\/\/northtrailauto.ca\/products\/acdelco-gm-original-equipment-fc208-12573337-engine-oil","provider":"North Trail Auto","version":"1.0","type":"link"}