{"product_id":"wmparts-aluminum-fuel-filter-housing-cap-for-6-6l-duramax-l5p-2017-2026-with-high-temp-aem-o-ring","title":"WMPARTS Aluminum Fuel Filter Housing Cap for 6.6L Duramax L5P (2017–2026) with High‑Temp AEM O‑Ring","description":"\u003cp\u003e\u003cstrong\u003eWMPARTS' aluminum fuel filter housing cap is a direct-fit replacement for part 134001 on 6.6L Duramax L5P diesel trucks, supplying a metal cap and high-temperature AEM O-ring to stop fuel seeps caused by cracked plastic caps.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned specifically for 2017–2026 Chevrolet Silverado 2500HD\/3500HD and GMC Sierra 2500HD\/3500HD equipped with the 6.6L Duramax L5P engine, this cap swaps in with basic hand tools in about 30 minutes. Manufactured using WMPARTS’ in-house tooling, the part prioritizes OEM-style alignment and tighter tolerances while replacing the factory plastic cap with a more durable aluminum body and a petroleum-resistant acrylic-rubber O-ring rated to 302°F (150°C). Note: the fuel filter element itself is not included.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this aluminum cap reduce fuel seeps on a Duramax L5P?\u003c\/h3\u003e\n\n\u003cp\u003ePlastic OEM caps can crack from repeated heat cycles and prolonged contact with diesel, creating hairline gaps that allow fuel to escape. The WMPARTS cap uses a corrosion-resistant aluminum housing that resists thermal stress and mechanical deformation, while the included AEM acrylic-rubber O-ring maintains a tight seal under high temperatures.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAluminum housing resists cracking from thermal cycling better than plastic.\u003c\/li\u003e\n  \u003cli\u003eAEM acrylic-rubber O-ring rated to 302°F (150°C) for petroleum resistance.\u003c\/li\u003e\n  \u003cli\u003ePrecision tooling for OEM-like alignment reduces misfit-related leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cap fit my truck and how easy is it to install?\u003c\/h3\u003e\n\n\u003cp\u003eThis cap is compatible only with 6.6L Duramax L5P diesel models from 2017 through 2026 in the specified Silverado and Sierra heavy-duty trucks. Installation is straightforward and intended to be a 30-minute job using common hand tools — no special modifications or adapters required.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits 2017–2026 Chevrolet Silverado 2500HD\/3500HD and GMC Sierra 2500HD\/3500HD with 6.6L L5P only.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with 3.0L LM2, LZ0, or gasoline engines.\u003c\/li\u003e\n  \u003cli\u003eDesigned for a quick 30-minute install with basic tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and what else will I need?\u003c\/h3\u003e\n\n\u003cp\u003eThe package contains the precision-machined aluminum housing cap and the AEM acrylic-rubber O-ring. The replacement is designed around the OEM TP1015 filter element specification, but the filter cartridge itself must be purchased separately.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncluded: aluminum fuel filter housing cap and AEM acrylic-rubber O-ring.\u003c\/li\u003e\n  \u003cli\u003eNot included: TP1015-spec fuel filter element (sold separately).\u003c\/li\u003e\n  \u003cli\u003eNo additional modifications or parts required for proper fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs there support or warranty if I have fitment questions?\u003c\/h3\u003e\n\n\u003cp\u003eWMPARTS tests parts before shipping and backs this cap with a one-year quality assurance period. Their support team commits to responding to fitment or installation inquiries within 24 hours to help troubleshoot any concerns.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1-year quality assurance warranty included.\u003c\/li\u003e\n  \u003cli\u003ePre-shipment testing to reduce out-of-box issues.\u003c\/li\u003e\n  \u003cli\u003eSupport response typically within 24 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: this aluminum fuel filter housing cap is aimed at owners and technicians working on 2017–2026 Chevrolet Silverado 2500HD\/3500HD and GMC Sierra 2500HD\/3500HD trucks with the 6.6L Duramax L5P who want a longer-lasting replacement for the factory plastic cap. It’s particularly useful if you’ve experienced fuel seepage, are performing routine fuel-system maintenance, or prefer a metal component for improved durability and thermal stability. Ideal for DIY mechanics, shop technicians, and fleet maintenance teams seeking a direct-fit, precision-made alternative to the OEM plastic cap.\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: Does this cap fit non-L5P Duramax engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It fits only 6.6L Duramax L5P engines in 2017–2026 Silverado\/Sierra 2500HD and 3500HD models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the fuel filter included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The aluminum housing cap and AEM O-ring are included; the TP1015-spec filter element must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WMPARTS","offers":[{"title":"Default Title","offer_id":67587356819641,"sku":"B0GS994CLK","price":94.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/wmparts-aluminum-cap-front-view.jpg?v=1790506779","url":"https:\/\/redleafauto.ca\/products\/wmparts-aluminum-fuel-filter-housing-cap-for-6-6l-duramax-l5p-2017-2026-with-high-temp-aem-o-ring","provider":"Redleaf Auto","version":"1.0","type":"link"}