Doc's Diesel Fuel/Water Separator DGF410+DGF401 for RAM 6.7L Cummins 2013-2018

Keep diesel clean with Doc's Diesel Fuel/Water Separator

Doc's Diesel Fuel/Water Separator DGF410+DGF401 is designed to help keep diesel fuel clean by separating water and filtering out impurities before fuel reaches the engine. For Ram pickups equipped with the 6.7L Cummins from 2013 to 2018, this kit offers a practical solution aimed at protecting fuel system components and supporting consistent fuel delivery. While results depend on driving conditions and maintenance, the design emphasizes filtration strength and reliable sealing to contribute to smoother operation and dependable performance in daily use.

Interchange and compatibility

The DGF410 kit is part of a broad interchange lineup. It replaces a range of OEM and aftermarket units, ensuring compatibility with common replacements for your Ram setup. Notable replacements include Mopar 68157291AA, Wix 33255, Fram CS11037, Baldwin PF9870, Premium Guard DF8606, and Purolator F36294. The DGF401 counterpart shares the same broad compatibility, simplifying stocking and installation for many service scenarios.

• Replaces Mopar 68157291AA
• Replaces Wix 33255
• Replaces Fram CS11037
• Replaces Baldwin PF9870
• Replaces Premium Guard DF8606
• Replaces Purolator F36294

Fitment and usage

Designed for 2013-2018 Ram 2500, 3500, 4500, and 5500 with the 6.7L Cummins engine, this separator aims to support steady fuel flow and adequate pressure under a range of driving demands. It is built to fit the engine bay layout and connections typical of these models, making installation straightforward for professional technicians and informed DIYers alike.

Filtration performance

Third-party tested, the unit delivers filtration at the 3-micron range with an efficiency rating around 96.92%. This level of filtration targets fine contaminants, helping maintain clean fuel downstream. The design also emphasizes maximizing the filtration media surface area for sustained filtration capacity over time.

What’s included and installation notes

• High-quality filtration media with included o-rings as needed for a secure seal
• Clear replacement guidelines aligned with vehicle manufacturer recommendations

Replacement guidelines and maintenance

• Change every 5,000 to 10,000 miles, or as advised by your vehicle manufacturer
• Maximum interval can extend to 15,000 miles under specific duty cycles or warranties

Why choose Doc's

Choosing Doc's Diesel Fuel/Water Separator can help support cleaner fuel delivery and protect fuel system components. The kit emphasizes a large filtration surface area and reliable sealing to reduce potential bypass risks during service. While benefits may vary with driving conditions, maintenance, and fuel quality, this separator offers a practical option for Ram 6.7L Cummins owners seeking a structured approach to filtration and water separation.