Doc's Diesel

Doc's Diesel 15W-40 Full Synthetic Heavy Duty Oil (CK-4) is a high-heat, heavy-duty engine oil in a 3‑gallon pack engineered to protect diesel engines during towing, fleet work, and severe service. This full synthetic 15W-40 formulation meets CK-4 performance requirements and is tailored for...

Doc's Diesel Filter Set supplies the matched fuel filter, water separator, and oil filter engineered to fit 6.7L Cummins RAM 2500/3500/4500/5500 trucks from 2013–2018 in one convenient purchase. Designed to simplify routine service, this complete filter kit bundles the DGF410 or DGF401 fuel/water separator...

Doc's Diesel CCV Filter captures oil mist and blow-by vapors from your 6.7L Cummins crankcase to help keep the turbo, intercooler and intake valves cleaner. This CCV (closed crankcase ventilation) filter is engineered for Ram trucks with the 6.7L Cummins diesel—covering Ram 2500, 3500,...

Doc's Diesel Fuel Water Separator DGF431 is a direct-fit replacement designed to remove water and contaminants from fuel for 6.7L Cummins RAM 2500 (2025–2026) applications. This fuel/water separator is engineered to protect your diesel fuel system by separating free water and filtering out particles...

Doc's Diesel Fuel Water Separator kit replaces the factory unit on 6.7L Cummins RAM 2500–5500 (2019–2024) to remove water and particulates from diesel before they reach the engine. If you drive a RAM equipped with the 6.7L Cummins turbo diesel, clean fuel is one...

Doc's Diesel Trans Filter Kit is a complete 68RFE transmission service set—filter, pan, and NBR gasket—engineered to fit Ram 2500 and 3500 trucks with the 6.7L Cummins (2003–2024) and 4WD configurations. This kit gives you the parts required for a proper transmission fluid service...

Doc's Diesel Fuel Filter FD4625 is a direct-fit fuel and water separator engineered for 2017–2026 Ford 6.7L Powerstroke F-250, F-350, and F-450 trucks to capture fine contaminants and separate water before fuel reaches the injection system. When you rely on a high-pressure common-rail diesel...

Doc's Diesel DPA10580 engine air filter is a heavy-duty replacement designed to protect Ford 6.7L Powerstroke diesel engines (F250–F550, 2017–2019) by trapping dust and debris while maintaining airflow. Built for diesel trucks that see real work, this Doc's Diesel filter uses deep pleated media...

Doc’s Diesel ATF4 High Mileage is a full synthetic ATF+4 automatic transmission fluid formulated to support smoother shifts and protect transmissions in high-mileage vehicles. Keep your manual or automatic gearbox performing reliably with a modern synthetic formulation designed around the Chrysler ATF+4 specification. This...

Doc's Diesel 6.4L Powerstroke Filter Kit replaces Motorcraft FD4617 and FL2016 with OEM-grade fuel/water separator and oil filter performance for 2008–2010 Ford 6.4L trucks. Built by a Midwest independent filter maker, this kit brings a complete fuel and oil filtration solution for Ford 6.4L...

Doc's Diesel Fuel Water Separator is a direct-fit replacement for 2013–2018 Ram 6.7L Cummins trucks that removes water and contaminants to protect the fuel system. If you drive a 2013–2018 RAM equipped with the 6.7L Cummins, keeping water and debris out of your fuel...

Doc's Diesel Filter Maintenance Kit is a complete set of matched fuel, oil, air, and cabin filters designed to fit 6.7L Cummins-equipped RAM 2500/3500/4500/5500 model years 2019–2024, simplifying scheduled service with verified filtration efficiency. If you own a RAM with the 6.7L Cummins diesel,...

Doc's Diesel Filter Combo Kit is a matched set of fuel, engine air, oil, and cabin filters engineered to fit 6.7L Powerstroke Ford F-250/F-350/F-450 models from 2020–2025, supplying high-efficiency filtration for routine service. Keeping all four service filters on the same maintenance plan simplifies...

Doc's Diesel Filter Combo Kit gives you all the engine and fuel filters matched to 6.7L Cummins RAM 2500/3500 (2013–2018) in one convenient package. This kit bundles the filters you need for routine service: fuel/water separators, oil filter, and engine air filter sized for...

Doc’s Diesel ATF 4 Full Synthetic Transmission Fluid with Filter Kit is a complete, vehicle-specific service package that supplies the correct ATF+4 fluid and direct-fit filters for Dodge RAM 6.7L Cummins 68RFE 4WD models from 2007.5–2024. This kit brings together the proper fluid and...

Doc's Diesel Filter Combo Kit is a matched set of fuel, oil and cabin air filters designed to replace factory filters on 6.7L Powerstroke Ford F-250/F-350/F-450 models from 2017–2019. If you own a 2017–2019 Ford with the 6.7L Powerstroke diesel, this kit bundles the...

Doc's Diesel Filter Maintenance Kit is a matched set of fuel/water separators, oil, engine air, and cabin air filters engineered to fit 2013–2018 Ram 6.7L Cummins engines for a single-stop routine service. Keep your Cummins running clean and protected between services with a kit...

Doc's Diesel Filter Kit provides the matched fuel and oil filters specifically built for Ford 6.7L Powerstroke F-250 and F-350 (2011–2016), packaged together to simplify scheduled service. If you own a 6.7L Powerstroke in a Ford F-250, F-350, F-450, or F-550 from model years...

Doc's Diesel Trans Filter Kit is a complete transmission pan, filter, and gasket set engineered to service Aisin AS69RC transmissions in 6.7L Cummins RAM 3500/4500/5500 trucks from 2013–2024. This kit is designed to replace your service components in one go — the filter media,...

Doc's Diesel Fuel Filter for the 5.0L Cummins in 2016–2019 Nissan Titan XD is a third-party tested replacement that captures contaminants down to 3 microns with 96.92% efficiency. This fuel filter is engineered specifically to match the fuel system needs of the 2016–2019 Nissan...

Doc's Diesel Filter Set replaces TP3012 and provides matched fuel and oil filtration for 6.6L Chevrolet/GMC Duramax engines (2001–2016). This combined kit includes the DPS9059 fuel filter and the D5399 oil filter engineered to meet or exceed original equipment specifications for 6.6L Duramax applications....

Doc's Diesel DPA11885 is a high-capacity replacement engine air filter engineered for Ford 6.7L Powerstroke F250–F550 trucks (2020–2025) to trap dust and protect the turbocharged diesel intake. This heavy-duty replacement filter fits 6.7L Powerstroke applications and stands in for Motorcraft FA2031 and several equivalent...

Doc's Diesel Oil Filter is a high-efficiency replacement filter engineered for 3.0L EcoDiesel engines in Jeep Wrangler/Gladiator and Ram 1500 models from 2020–2023. If you drive a 3.0L EcoDiesel-equipped Jeep Wrangler, Gladiator, or Ram 1500 from model years 2020–2023, this oil filter is engineered...

Doc's Diesel Fuel Filter for 6.6L Duramax trucks (2001–2016) is a high-efficiency replacement filter independently tested at 96.92% efficiency down to 3 microns. If you own a Chevrolet or GMC 2500HD/3500HD with the 6.6L Duramax engine, this direct-fit fuel filter is designed to trap...