{"product_id":"docs-diesel-6-6l-duramax-fuel-oil-filter-kit-dgf429-d11878-2020-2025-2500-3500hd-oe-fitment","title":"Doc's Diesel 6.6L Duramax Fuel \u0026 Oil Filter Kit DGF429+D11878 — 2020–2025 2500\/3500HD, OE Fitment","description":"\u003cp\u003e\u003cstrong\u003eDoc's Diesel Filter Kit DGF429+D11878 is a complete fuel-and-oil filter set designed to fit Chevrolet and GMC 6.6L Duramax 2500HD\/3500HD models from 2020 onward, replacing TP1015 and PF26 equivalents.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis filter kit bundles the DGF429 fuel filter and D11878 oil filter so you can perform a timely service without hunting for individual parts. Each filter is engineered to match OE fitment and cross-reference popular part numbers from AC\/Delco, Wix, Baldwin and others. The kit simplifies maintenance, helps maintain engine protection, and keeps your Duramax running according to recommended service intervals.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the kit match my 6.6L Duramax's fit and parts list?\u003c\/h3\u003e\n\u003cp\u003eThe kit is specified for Chevrolet and GMC 6.6L Duramax 2500HD and 3500HD trucks from the 2020 through 2025 model years. Doc's Diesel lists cross-references so you can confirm compatibility with the original equipment numbers you may already use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFuel filter DGF429 replaces AC\/Delco TP1015, Wix WF10451 and other common OEM numbers.\u003c\/li\u003e\n  \u003cli\u003eOil filter D11878 replaces GM 12684038, AC\/Delco PF26, Wix WL10454, Baldwin B7449.\u003c\/li\u003e\n  \u003cli\u003eFitment declared for 2020–2025 Chevrolet\/GMC 6.6L Duramax 2500HD and 3500HD models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance or filtration ratings should I expect?\u003c\/h3\u003e\n\u003cp\u003eDoc's Diesel publishes a laboratory-tested efficiency for the oil filter and provides typical service guidance for both filters. These metrics help you judge particle capture and overall protection without overstating outcomes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOil filter D11878: third-party tested at 25 micron with a 99% efficiency rating.\u003c\/li\u003e\n  \u003cli\u003eFuel filter is designed to meet typical OEM flow and contaminant-capture needs for Duramax engines.\u003c\/li\u003e\n  \u003cli\u003eBoth filters are built to the footprint and sealing dimensions required for direct replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen should I replace the fuel and oil filters in this kit?\u003c\/h3\u003e\n\u003cp\u003eService intervals depend on driving conditions and manufacturer warranty guidance; Doc's Diesel provides general replacement ranges so you can plan maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFuel filters: commonly every 5,000–10,000 miles; up to 15,000 miles in less severe conditions.\u003c\/li\u003e\n  \u003cli\u003eOil filters: commonly every 5,000–7,000 miles; up to 10,000–15,000 miles depending on oil type and usage.\u003c\/li\u003e\n  \u003cli\u003eAlways follow your vehicle manufacturer’s warranty and maintenance schedule as the final authority.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical benefits does buying the kit deliver?\u003c\/h3\u003e\n\u003cp\u003ePurchasing the paired filters together saves time and reduces the chance of mismatched parts during a routine service. It also consolidates trusted cross-references so you can replace both filters in one visit with confidence.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne purchase contains both the compatible fuel and oil filters for a single service job.\u003c\/li\u003e\n  \u003cli\u003eCovers common OEM and aftermarket cross-references for quick verification.\u003c\/li\u003e\n  \u003cli\u003eHelps keep service on schedule to support engine longevity and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Doc's Diesel DGF429+D11878 filter kit is aimed at owners and technicians of 2020–2025 Chevrolet\/GMC 6.6L Duramax 2500HD and 3500HD trucks who prefer a ready-to-install, cross-referenced replacement set. It’s useful for DIYers who want the right parts in one box and for service shops that value consistent fitment and third-party filtration data when planning routine maintenance.\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 kit fit a 2022 Chevrolet 6.6L Duramax 2500HD?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The DGF429+D11878 kit is listed for Chevrolet\/GMC 6.6L Duramax 2500HD and 3500HD model years 2020–2025.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What OEM parts do these filters replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fuel DGF429 replaces TP1015 and similar numbers; oil D11878 replaces PF26, GM 12684038 and comparable OEM filters.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Doc's Diesel","offers":[{"title":"Default Title","offer_id":48084120567966,"sku":"B0BSNWJHS9","price":67.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/docs-diesel-filter-kit-front-packaging_0bae6be8-788e-4ed8-aa3f-28a82ab4b2bc.jpg?v=1785846813","url":"https:\/\/northtrailauto.ca\/products\/docs-diesel-6-6l-duramax-fuel-oil-filter-kit-dgf429-d11878-2020-2025-2500-3500hd-oe-fitment","provider":"North Trail Auto","version":"1.0","type":"link"}