There isn’t a single universal fuel filter part number for the RAM 2500 with the 6.7-liter Cummins. The correct part depends on the model year and the specific filter kit configuration (primary filter versus a full kit with water separator). Use your VIN or check the filter head labeling to verify the exact number.
Why part numbers vary across years and setups
The 6.7-liter Cummins ISB used in RAM 2500 trucks has evolved over time. Early generations often used a two-filter arrangement that included a water separator, while later designs and aftermarket kits may use different housings or element sizes. Because of these changes, the official part number can differ between Mopar OEM kits and reputable aftermarket brands such as Fleetguard, Wix, or Bosch.
What to check on your vehicle
To identify the correct part number quickly, gather these details:
- The year and model of your RAM 2500 (and confirmation it has the 6.7 Cummins).
- Your VIN, which lets a parts catalog pull the exact match.
- Inspection of the fuel filter head or canister label for a stamped part number or code.
- Whether you’re replacing just the primary filter or a complete kit including the water separator and accompanying gaskets/o-rings.
In practice, most owners opt for a Mopar fuel filter kit for long-term fit and warranty protection, but reputable aftermarket options are widely used. The exact replacement number can vary by year and by whether the kit is OEM or aftermarket.
How to get the exact part number quickly
Use these official sources and steps to verify the exact part number for your truck:
- Mopar official parts catalog: enter your VIN to pull the exact fuel filter kit part number.
- Cummins QuickServe Parts Lookup: search for the ISB 6.7 fuel filter and select the RAM 2500 model year to see OEM and aftermarket options.
- Major retailers and filters specialists (NAPA, AutoZone, RockAuto, Wix, Fleetguard) provide filter part numbers by vehicle year and engine family; search for “fuel filter water separator” for the ISB 6.7.
After locating the exact part number, verify the kit contents. Some entries refer to a single element, while others represent a complete kit with water separator, O-rings, and hardware.
Bottom line
The RAM 2500 6.7 Cummins does not have a single universal fuel filter part number. The correct number depends on the year, engine configuration, and whether you’re purchasing a primary filter or a full fuel-filter kit. For the most reliable result, look up the VIN in official catalogs or consult a trusted parts supplier with complete vehicle details.
Summary
In short: verify your exact vehicle details and use official catalogs to confirm the correct fuel filter part number for your RAM 2500 6.7 Cummins. Expect multiple valid part numbers across years and configurations, with OEM Mopar kits and reputable aftermarket options available. Always confirm the kit contents and compatibility before purchase.