Doc's Diesel 6.7L Cummins Filter Kit for RAM 2500–5500 (2013–2018) — Fuel/Water Separators & Oil Filter

Doc's Diesel Filter Set provides the matched fuel filter, water separator, and oil filter tailored for 6.7L Cummins-equipped RAM trucks from 2013–2018, packaged together so one purchase covers a standard service.

This kit is assembled to fit RAM 2500, 3500, 4500, and 5500 trucks powered by the 6.7L Cummins engine built between 2013 and 2018. Each set includes the fuel/water separators and the engine oil filter specified for this application, simplifying maintenance by grouping components that match factory fit and function. Use the vehicle fitment card on this page to confirm compatibility with your truck's year and configuration before ordering.

How do these filters simplify routine maintenance?

Instead of ordering individual parts, this set bundles the core filters used during a typical service interval so you have everything on hand. That reduces downtime and the chance of mixing incompatible parts, especially for busy technicians or owners working solo.

• Includes matched fuel/water separator elements and a spin-on oil filter for the 6.7L Cummins.
• One SKU covers the common service items for a single maintenance visit.
• Pre-selected items reduce ordering and inventory mistakes.

What are the recommended change intervals for each filter?

Recommended service windows depend on driving conditions and maintenance practices; follow your vehicle manufacturer's guidance when possible. As general guidance, oil filters are typically changed more frequently than fuel/water separators to protect engine oil cleanliness and oil system performance.

• Oil filters: commonly every 5,000–7,000 miles; maximum intervals used by some operators range up to 10,000–15,000 miles depending on oil type and usage.
• Fuel/water separators: commonly serviced every 5,000–10,000 miles, with 15,000 miles often cited as an upper limit for many operators.
• Adjust intervals for heavy towing, dusty environments, or off-road use.

Which specific parts are included and why they matter?

This set contains Doc's Diesel DGF410 and DGF401 fuel/water separator elements plus the D5335 oil filter, each chosen to match the 6.7L Cummins application. Using matched components helps maintain proper filtration efficiency and fitment for the fuel and oil systems.

• DGF410 fuel/water separator – designed for primary filtration and water separation.
• DGF401 fuel/water separator – complements system filtration stages as required by specific configurations.
• D5335 oil filter – spin-on design engineered for oil cleanliness and engine protection when changed per service interval.

What should I check before ordering this filter set?

Confirm your truck's model and engine configuration using the fitment information on the product page; years and equipment levels can change required part numbers. Also review any warranty or fleet maintenance guidelines to ensure these aftermarket parts meet your program requirements.

• Verify exact year and RAM model (2500, 3500, 4500, or 5500) and 6.7L Cummins engine application.
• Compare part numbers on current filters if replacing existing components.
• Check warranty or service interval requirements before extending change periods.

Who is this for: This Doc's Diesel Filter Set is aimed at RAM owners, fleet managers, and independent diesel technicians who want a convenient, matched-package solution for routine service on 6.7L Cummins trucks from 2013–2018. It suits anyone looking to reduce ordering steps, ensure compatible filter selection, and keep a single-service kit ready for oil and fuel system maintenance. Always confirm fitment for your exact truck configuration before purchase and adhere to your manufacturer's recommended service intervals.