Fleetguard fuel filter FS43255 for RAM Cummins 6.7L (2010+), direct-fit OEM replacement, compact canister

Fleetguard FS43255 is a direct-fit fuel filter designed to protect and maintain the fuel system of 2010-and-newer RAM trucks with the Cummins 6.7L engine.

Built to meet OEM expectations and engineered for long-term reliability, the FS43255 replaces Cummins part 4947561 and Dodge 68065608AA. Its compact canister form and precise inner/outer diameters ensure proper sealing and flow for diesel systems. Whether you’re performing routine maintenance or restoring fuel-system integrity after a service, this Fleetguard unit offers a dependable filtration option that integrates seamlessly with the factory fuel supply chain.

How does the Fleetguard FS43255 fit my RAM with a Cummins 6.7L engine?

This fuel filter is manufactured to the dimensional and connection specifications required for RAM trucks from 2010 onward equipped with the Cummins 6.7L powerplant. It matches the original equipment mounting and replacement part numbers so installation is straightforward. Expect a direct swap with no modification when replacing the stock filter.

• Designed for RAM Trucks 2010 and newer with Cummins 6.7L engines
• Replaces Cummins 4947561 and Dodge 68065608AA
• Dimensions: height 5.53 in, O.D. 4.22 in, I.D. 1.56 in for proper fit

What are the key physical specifications I should know before buying?

The FS43255's physical measurements are important to confirm fitment in the vehicle’s filter housing. The height and outer/inner diameters are matched to the OEM part to ensure correct sealing and flow characteristics. These dimensions also help when checking clearance and mounting space during routine service.

• Height: 5.53 inches for correct engagement
• Outer diameter: 4.22 inches to match housing bore
• Inner diameter: 1.56 inches for secure center post fit

Why choose Fleetguard FS43255 over aftermarket alternatives?

Fleetguard designs filters to meet strict manufacturing tolerances and material standards that protect sensitive injectors and pumps. The FS43255 is produced with consistent media quality and housings engineered for leak-free performance under diesel pressure and vibration. Choosing a purpose-built Fleetguard item reduces the risk of premature wear or bypassing compared with lower-grade replacements.

• Manufactured to OEM-compatible tolerances for dependable sealing
• Consistent filtration media to guard fuel-delivery components
• Compatible replacement for known OEM part numbers

How should I handle installation and maintenance for best results?

Install the filter following factory guidelines: depressurize the fuel system, remove the old unit, inspect seals, and hand-tighten the new canister to specification. Regular replacement intervals—guided by your vehicle manual and operating conditions—help maintain fuel-system performance. Always check for leaks after starting the engine and re-torque if necessary.

• Depressurize fuel system before removal
• Inspect O-rings and seating surfaces during swap
• Run engine and check for leaks after installation

Who is this for: The Fleetguard FS43255 is intended for RAM truck owners, fleet managers, and diesel technicians who require an OEM-compatible fuel filter for Cummins 6.7L engines from 2010 onward. It suits those who prioritize correct fit, predictable filtration performance, and compatibility with existing Cummins/Dodge part numbers during routine maintenance or repairs.