{"product_id":"docs-diesel-fuel-water-separator-for-6-7l-cummins-ram-2500-5500-2025-2026-matched-assembly-3-micron-efficiency","title":"Doc's Diesel Fuel\/Water Separator for 6.7L Cummins RAM 2500–5500 (2025–2026) — Matched Assembly, 3‑Micron Efficiency","description":"\u003cstrong\u003eDoc's Diesel Fuel Water Separator is a drop-in replacement filter designed to remove water and contaminants from fuel for 6.7L Cummins RAM 2500\/3500\/4500\/5500 trucks (2025–2026).\u003c\/strong\u003e\n\n\u003cp\u003eThis fuel\/water separator from Doc's Diesel (DGF431) is engineered to protect the fuel system on late-model RAM trucks with the 6.7L Cummins engine. Independently tested components in this product family show high efficiency at capturing particles down to 3 microns. The unit is sold as a matched assembly so you get the correct parts for a single service interval, and the listing includes a fitment card to confirm compatibility for your specific year and configuration before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this separator protect my truck's fuel system?\u003c\/h3\u003e\n\u003cp\u003eThe separator removes free and emulsified water and captures dirt, rust, and debris before they reach injectors and pumps. Cleaner fuel reduces wear on high-pressure components and helps maintain reliable engine operation under heavy loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-efficiency media: tested to 99.1% (DGF430) and 93.48% (DGF401) at 3 microns for comparable components.\u003c\/li\u003e\n  \u003cli\u003eWater trapping: designed to separate and drain free water away from the fuel stream.\u003c\/li\u003e\n  \u003cli\u003eContaminant capture: collects rust, sediment, and particulates to protect precision fuel system parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my RAM 6.7L Cummins truck?\u003c\/h3\u003e\n\u003cp\u003eThe DGF431 assembly is built specifically for RAM 6.7L Cummins models from 2025–2026, including 2500, 3500, 4500, and 5500 series. Always check the fitment card on the product page against your truck's year and configuration to ensure exact compatibility before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 6.7L Cummins engines in RAM 2500–5500 for model years 2025–2026.\u003c\/li\u003e\n  \u003cli\u003eIncludes matched components so one purchase covers a complete service.\u003c\/li\u003e\n  \u003cli\u003eRefer to fitment card to confirm cab, drivetrain, and factory equipment specifics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I change this fuel\/water separator?\u003c\/h3\u003e\n\u003cp\u003eService intervals vary by driving conditions and manufacturer guidance; changing the separator every 5,000–10,000 miles is a common recommendation, with 15,000 miles as a maximum interval. Inspect the separator during routine maintenance and replace sooner if you find visible contamination or water in the bowl.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical replacement window: 5,000–10,000 miles for routine use.\u003c\/li\u003e\n  \u003cli\u003eMaximum recommended: 15,000 miles unless manufacturer advises otherwise.\u003c\/li\u003e\n  \u003cli\u003eCheck for water or heavy debris and change immediately if present.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and how does it install?\u003c\/h3\u003e\n\u003cp\u003eThe DGF431 is sold as a matched assembly, so each order contains the components needed to complete a single service for the specified application. Installation follows OEM mounting and drain procedures; it’s compatible with factory fuel\/water separator housings on compatible RAM trucks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: DGF431 fuel\/water separator assembly with matched parts for one service.\u003c\/li\u003e\n  \u003cli\u003eDesigned for drop-in replacement using existing OEM mounting points and fittings.\u003c\/li\u003e\n  \u003cli\u003eFollow vehicle manufacturer instructions for draining and priming during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Doc's Diesel DGF431 fuel\/water separator is intended for owners and technicians of 2025–2026 RAM trucks equipped with the 6.7L Cummins engine who want a high-efficiency, vehicle-specific replacement part. It’s suited for fleet managers, diesel enthusiasts, and anyone performing scheduled fuel system maintenance who needs tested contaminant and water control delivered as a matched service kit.\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 this separator compatible with my 2025 RAM 2500 Cummins?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This DGF431 is designed for 2025–2026 RAM 6.7L Cummins models; confirm exact fit using the product fitment card before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace the fuel\/water separator?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 5,000–10,000 miles for routine use; no more than 15,000 miles unless manufacturer specifies otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Doc's Diesel","offers":[{"title":"Default Title","offer_id":67585020330169,"sku":"B0GGY9BBVV","price":252.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/docs-diesel-front-packaging_4e49b8ec-9f13-46f9-94c2-7ca057c1abd8.jpg?v=1790463673","url":"https:\/\/redleafauto.ca\/products\/docs-diesel-fuel-water-separator-for-6-7l-cummins-ram-2500-5500-2025-2026-matched-assembly-3-micron-efficiency","provider":"Redleaf Auto","version":"1.0","type":"link"}