Doc's Diesel 6.7L Cummins RAM Filter Set, 2019–2024 — Matched Fuel/Water Separators & Oil Filter

Doc's Diesel Filter Set is a matched trio of fuel/water separators and an oil filter engineered to replace OEM filters on 6.7L Cummins RAM trucks from 2019–2024, supplying lab-tested filtration efficiency and a complete service repair kit in a single order.

This filter set bundles the DGF430 and DGF401 fuel/water separators plus the D5335 oil filter so you can perform a full service with parts matched to the same application. Each component has been independently tested for particle and water separation performance and is designed to meet or exceed original equipment filter characteristics. The set simplifies maintenance planning and reduces the risk of mixing incompatible parts during routine service.

How reliable are the filtration performance claims?

The filters in this kit have documented independent test results showing high particle capture and water separation. These tests measure efficiency down to small micron sizes and confirm the D5335 oil filter and both fuel/water separators meet strict performance thresholds.

• DGF430 fuel/water separator — 99.1% efficiency to 3 microns
• DGF401 fuel/water separator — 96.92% efficiency to 3 microns
• D5335 oil filter — 99% particle capture (test-standard dependent)

Will these filters fit my 6.7L Cummins RAM?

The set is manufactured for 6.7L Cummins RAM model years 2019 through 2024, and each component is shaped to match OE mounting and sealing interfaces. Use the fitment card on the product page to confirm year, cab/engine configuration, and any vehicle-specific options before ordering.

• Designed for 2019–2024 6.7L Cummins Ram applications
• Sealing and thread patterns match common OE specs
• Check the fitment card to verify exact compatibility

What comes in the box and how often should I change them?

This kit includes the DGF430 fuel/water separator, the DGF401 fuel/water separator, and the D5335 oil filter — everything needed for a coordinated service on the fuel and lubrication systems. Service intervals vary by usage and manufacturer recommendations; fuel/water separators typically require more frequent replacement under heavy duty or poor-fuel conditions.

• Included: DGF430, DGF401, D5335 filters
• Fuel/water separator replacement: commonly every 5,000–10,000 miles (up to 15,000 max)
• Follow vehicle manufacturer warranty/service schedule for oil filter changes

How does using a matched filter set benefit maintenance?

Buying a matched set reduces the chance of installing mismatched elements and streamlines parts ordering for a single service event. Matched filters ensure predictable flow characteristics and replacement intervals across fuel and oil systems, helping maintain consistent engine protection.

• Simplifies one-stop servicing with components matched to the same application
• Reduces inventory confusion and minimizes cross-brand mismatches
• Supports consistent filtration performance across systems

Who is this for: This Doc's Diesel Filter Set is aimed at owners and fleet managers of Ram trucks with the 6.7L Cummins engine (model years 2019–2024) who prefer to perform scheduled maintenance themselves or source a complete, tested kit for professional service. It’s also suited to technicians and shops that want a single-purchase solution with independently validated filtration performance for both fuel/water separation and engine oil protection.