Doc's Diesel Fuel Water Separator for 6.7L Cummins RAM 2500 (2019–2024) — OEM fit, includes DGF430 & DGF401

Doc's Diesel Fuel Water Separator for 6.7L Cummins RAM 2500 (2019–2024) filters water and contaminants from fuel to protect your injection system and maintain reliable diesel performance.

If you own a RAM with the 6.7L Cummins turbo diesel engine from model years 2019 through 2024, this replacement kit from Doc's Diesel is designed to match factory fit and function while providing high-efficiency filtration. Each order ships with the matched DGF430 and DGF401 elements so you have both parts needed for a complete service. Independent testing shows exceptional contaminant and water removal down to microscopic particle sizes, helping preserve injectors, pumps and sensors.

How effective is this separator at removing water and debris from diesel?

Laboratory testing demonstrates the separator removes nearly all free water and aggressively captures fine particles to protect sensitive fuel system components. Efficiency figures are based on independent evaluations performed under controlled conditions.

• 99.1% efficiency removing contaminants down to 3 microns in one test.
• 96.92% efficiency down to 3 microns in a separate verification run.
• Designed to shed free and emulsified water before fuel reaches the injection system.
• Helps reduce wear on high-pressure pumps and injectors by trapping dirt, rust and debris.

Will this fit my RAM 2500/3500/4500/5500 with a 6.7L Cummins?

The kit is built specifically for the 6.7L Cummins platforms across RAM 2500, 3500, 4500 and 5500 trucks for 2019–2024 model years, but fitment can vary with options and production changes. Always check the vehicle fitment card or VIN-specific lookup on the product page to confirm compatibility before ordering.

• Manufactured to match OEM form, fit and mounting points for 6.7L Cummins models.
• Compatible with 2019–2024 RAM 2500, 3500, 4500, 5500 configurations—confirm with fitment tool.
• Includes the correct pair of replacement elements (DGF430 and DGF401) for a single service event.

How often should I replace these fuel/water separators?

Replacement intervals depend on driving conditions and manufacturer recommendations, but regular service is important to avoid contamination-related failures. Use these general guidelines and follow your vehicle warranty or maintenance schedule for precise timing.

• Typical replacement window: every 5,000–10,000 miles under normal conditions.
• Do not exceed 15,000 miles between changes; more frequent service for severe or off-road use.
• Inspect for water, heavy sediment or fuel discoloration and replace sooner if found.

What comes in the box and how does installation work?

This kit includes both elements needed to complete the fuel/water separator service so you won't need to buy a second part. Installation follows the factory service procedure and can be completed by a competent DIYer or a professional technician.

• Included parts: one DGF430 element and one DGF401 element matched to the same application.
• Ships ready for direct replacement—gaskets and seals matched to the kit where required.
• Installation note: follow vehicle manufacturer torque and priming procedures to avoid air ingestion.

Who this is for: drivers, fleet managers and technicians who operate RAM trucks equipped with the 6.7L Cummins engine and want a high-performing, drop-in replacement that mirrors OEM fit while improving protection against water and microscopic contaminants. Choose this Doc's Diesel kit when you need a matched pair of elements (DGF430 + DGF401), proven filtration efficiency, and a service interval aligned with manufacturer guidance.