iFJF 6.7L Cummins Fuel Filter & Rear Water Separator Kit for Ram 2013–2018 — OE-fit front and rear cartridges

iFJF replacement fuel filter and rear water separator kit for 6.7L Cummins Dodge Rams delivers clean, dry fuel to protect injectors and maintain reliable diesel performance.

This two-piece service kit is engineered for 2013–2018 Ram 2500/3500/4500/5500 trucks with the 6.7L Cummins engine. It includes the front fuel filter and the rear water-separating cartridge designed to match OE fitment numbers, providing a straightforward swap during routine maintenance. Whether you’re doing preventive service before a long haul or replacing a tired filter, this kit restores filtration efficiency and helps reduce contamination risks that can affect fuel-system longevity.

What parts come in the iFJF 6.7L Cummins fuel filter kit?

The kit contains two separate cartridges: a front fuel filter and a rear water separator. Both components correspond to common OE reference numbers so they install without modification.

• Included: one front fuel filter (68157291AA / cross-references MO608, PF9870, FS43255, etc.).
• Included: one rear water separator (68197867AA / cross-references FS20089, P551833, FF1279, etc.).
• Sold as a pair to replace both filtration stages during a single service interval.

How does this filter and separator help my Dodge Ram’s fuel system?

The front filter captures particulates while the rear unit separates and drains water that can accumulate in diesel fuel. Together they reduce the chance of clogged injectors and protect high-pressure fuel components from premature wear.

• Particle filtration protects pumps and injectors from abrasive debris.
• Water separation prevents corrosion and microbial growth in the fuel system.
• Using both parts at once ensures matched performance across the fuel path.

Are these iFJF parts compatible with my Ram model years and part numbers?

These cartridges are intended for 6.7L Cummins trucks from 2013 through 2018 and align with many original part numbers for direct replacement. Check the listed cross-reference numbers against your existing filters to confirm a match before ordering.

• Fitment: Ram 2500, 3500, 4500, 5500 with 6.7L diesel (2013–2018).
• Front filter cross-refs: 68157291AA, 68065608AA, MO608, PF9870, FS43255, FF1199, and others.
• Rear separator cross-refs: 68197867AA/AB, FS20089, BF46031, P551833, FF1279, WF10112, and others.

What should I know about installation and service intervals?

Installation follows standard fuel-filter-change procedures for the Ram 6.7L Cummins: relieve fuel pressure, remove the housings, swap cartridges, and bleed the system per factory instructions. Replace both the front and rear elements together for consistent filtration performance.

• Perform service according to your vehicle’s maintenance schedule or when symptoms appear (power loss, injector codes, fuel odor).
• Always relieve pressure and follow safety precautions when handling diesel fuel.
• After installation, prime the fuel system as required to avoid air-bound starts.

Who is this for: This iFJF fuel filter and water separator kit is aimed at Dodge Ram owners, fleet managers, and DIY mechanics who maintain 6.7L Cummins trucks from model years 2013–2018. It’s useful for routine preventative maintenance, preparing vehicles for heavy duty work, or replacing worn OEM filters with a direct-fit aftermarket alternative that references common part numbers for easy verification.