{"product_id":"gm-duramax-6-6l-l5p-fuel-filter-cap","title":"6.6L Duramax L5P Billet Fuel Filter Cap | 2017–2025 GMC\/Chevrolet","description":"\u003cdiv class=\"content-wrapper\"\u003e\n\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eUpgrade the reliability of your GM Duramax 6.6L L5P with the \u003cstrong\u003eBillet Fuel Filter Cap (2017–2025)\u003c\/strong\u003e. The factory plastic cap is known to crack, round off and fail during routine fuel filter service. This billet aluminum replacement eliminates those weak points, offering better durability, easier servicing and a cleaner, more dependable fuel system for Sierra and Silverado HD trucks.\u003c\/p\u003e\n\u003cdiv class=\"callout-section\"\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e This is a direct bolt-on replacement — no tuning or fuel system modifications required.\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplaces the factory plastic fuel filter cap that commonly cracks or rounds off\u003c\/li\u003e\n\u003cli\u003eMachined from \u003cstrong\u003ebillet aluminum\u003c\/strong\u003e for maximum strength and long-term reliability\u003c\/li\u003e\n\u003cli\u003eIntegrated \u003cstrong\u003e36mm hex\u003c\/strong\u003e for simple, secure removal and installation\u003c\/li\u003e\n\u003cli\u003eBuilt-in \u003cstrong\u003ebillet aluminum drain valve\u003c\/strong\u003e for tool-free fuel draining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/8 NPT port\u003c\/strong\u003e on the drain valve allows optional fittings or fuel accessories\u003c\/li\u003e\n\u003cli\u003eFits both OEM plastic fuel filter housings and upgraded aftermarket housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents cracking, stripping, or seizing issues found in OEM plastic caps\u003c\/li\u003e\n\u003cli\u003eEnables clean, controlled draining without tools or spilled fuel\u003c\/li\u003e\n\u003cli\u003eIdeal upgrade for stock, towing, work and performance Duramax builds\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant billet construction increases long-term fuel system reliability\u003c\/li\u003e\n\u003cli\u003eSupports accessory connections with built-in 1\/8 NPT port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cdiv class=\"content-section\"\u003e\n\u003cul\u003e\n\u003cli\u003e2017–2025 Chevrolet Silverado 2500HD\/3500HD (6.6L Duramax L5P)\u003c\/li\u003e\n\u003cli\u003e2017–2025 GMC Sierra 2500HD\/3500HD (6.6L Duramax L5P)\u003c\/li\u003e\n\u003cli\u003eCompatible with factory and most aftermarket fuel filter housings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCNC-machined billet aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHex Size\u003c\/td\u003e\n\u003ctd\u003e36mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain Valve\u003c\/td\u003e\n\u003ctd\u003eIntegrated billet valve; tool-free operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort\u003c\/td\u003e\n\u003ctd\u003e1\/8 NPT threaded port for optional fittings or hoses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation \u0026amp; Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDirect bolt-on replacement for the OEM plastic filter cap\u003c\/li\u003e\n\u003cli\u003eInstalls using a standard 36mm socket\u003c\/li\u003e\n\u003cli\u003eDrain valve allows clean, controlled draining before removing the filter\u003c\/li\u003e\n\u003cli\u003eNo tuning or fuel system modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhy replace the OEM plastic Duramax L5P fuel filter cap?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eThe factory cap can crack or strip easily. A billet aluminum cap removes these failure points and lasts significantly longer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eWill this work with my stock Duramax L5P fuel filter housing?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. It fits the OEM plastic housing and most aftermarket housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat tool do I need to remove it?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eA standard 36mm socket fits the integrated hex.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat is the purpose of the 1\/8 NPT port?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eIt allows installation of optional fittings, hoses or accessories if desired.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eDoes the billet fuel filter drain valve require tools?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eNo. The built-in drain valve is fully tool-free, making filter changes clean and easy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tuner Depot","offers":[{"title":"Default Title","offer_id":44328409170013,"sku":"AC-FFC-GM-L5P-17","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/1131\/9389\/files\/AC-FCC-GM-L5P-17_1.png?v=1788204076","url":"https:\/\/tunerdepot.com\/products\/gm-duramax-6-6l-l5p-fuel-filter-cap","provider":"Tuner Depot","version":"1.0","type":"link"}