Fleetguard Fuel Filter FS43255 for RAM with Cummins 6.7L (2010+) — Direct-Fit Cartridge, OEM Cross-Reference

If you own a RAM with the Cummins 6.7L powerplant, the FS43255 is engineered to match factory fit and function while trapping contaminants that can impair fuel-system components. This cartridge-style filter is dimensioned to align with the original equipment it replaces and is compatible with common original part numbers, making it a straightforward service item during routine maintenance.

How does this filter fit my RAM with a Cummins 6.7L engine?

The FS43255 was designed to meet the physical and connection requirements of the fuel filter housing used on RAM trucks from 2010 onward that carry the 6.7L Cummins. Installation follows the same steps as the OEM cartridge, so mechanics and DIYers will find it familiar. Always follow vehicle manufacturer service procedures for safe removal and installation.

• Direct fit for RAM 2010+ models with Cummins 6.7L
• Matches OEM cartridge dimensions for proper seating
• Replaces Cummins 4947561 and Dodge 68065608AA

What are the key dimensions and physical details I should know?

The filter’s compact cartridge form is sized to fit the factory housing and allow for correct sealing and flow rates. Knowing these measurements helps ensure you’re ordering the correct part and confirms compatibility with your service instructions. Dimensions also matter when checking clearances in crowded engine bays.

• Height: 5.53 inches for proper housing engagement
• Outer Diameter (O.D.): 4.22 inches to match the filter bore
• Inner Diameter (I.D.): 1.56 inches for inlet/outlet alignment

Will the Fleetguard FS43255 replace my existing OEM filter numbers?

Yes — the FS43255 is specified as a compatible replacement for several OEM part numbers, simplifying parts sourcing. If your truck lists Cummins 4947561 or Dodge 68065608AA as the correct service part, the Fleetguard unit is intended as an equivalent option. Verify cross-reference in your service manual or parts catalog to confirm compatibility for your model year and configuration.

• Cross-references Cummins part 4947561
• Cross-references Dodge part 68065608AA
• Intended as a direct replacement for like-for-like servicing

How should I approach changing this filter during maintenance?

Changing the fuel filter follows standard fuel-system service practices: relieve pressure if required, disconnect supply lines, swap the cartridge, and inspect seals and connections. Use manufacturer-recommended torque and priming steps after installation to avoid air in the fuel system. Dispose of the used filter per local regulations for fuel-contaminated components.

• Relieve fuel pressure before loosening connections
• Replace seals and O-rings if specified by your service guide
• Prime the system or cycle the ignition to clear air pockets after install

Who is this for: The Fleetguard FS43255 is suited for RAM truck owners, fleet managers, and technicians who need a reliable, factory-compatible fuel filter for Cummins 6.7L engines from 2010 onward. It’s appropriate for routine scheduled service and for anyone replacing the OEM cartridge part numbers listed in parts references. Choose this unit if you want an engineered replacement that matches OEM dimensions and cross-references common Cummins and Dodge filter numbers.