Description
68157291AA Fuel Filter — Ram 6.7L Cummins (2010-2020)
Your Ram's high-pressure common rail injection system demands clean fuel—period. The iFJF 68157291AA Fuel Filter delivers 3-micron absolute filtration and water separation for the 2010-2020 Ram 2500, 3500, 4500, and 5500 with the legendary 6.7L Cummins turbo diesel.
This is the upper, engine-bay fuel filter—the cartridge element that drops into the canister on the driver's side of the engine compartment and seals under the 28 mm housing cap. It is the first line of defense against fuel contamination. Replaces Mopar 68157291AA and 68436631AA with equivalent performance at aftermarket pricing.
Key Features
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3-Micron Absolute Filtration: Removes over 99.9% of particles 3 microns and larger—protecting injectors from abrasive wear
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Water Separation Technology: Hydrophobic media coalesces and separates water from diesel fuel, preventing injector tip erosion
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High Dirt-Holding Capacity: Extended pleat pack design means longer service intervals and better value versus budget filters
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OEM-Equivalent Construction: Nitrile O-ring, heavy-gauge steel end caps, and anti-drainback valve match factory specifications
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Broad Compatibility: Fits 2010-2020 model years—covering both CP3 and CP4.2 injection pump applications
Compatibility
| Vehicle |
Engine |
Years |
| Ram 2500 |
6.7L Cummins I6 Turbo Diesel |
2010-2020 |
| Ram 3500 |
6.7L Cummins I6 Turbo Diesel |
2010-2020 |
| Ram 4500/5500 |
6.7L Cummins I6 Turbo Diesel |
2010-2020 |
Cross-Reference: Mopar 68157291AA, 68436631AA, 68065608AA | Fleetguard PF46152 | WIX WF10255
Specifications
| Specification |
Detail |
| Part Number |
68157291AA / FJ-91AA-1 |
| Filter Type |
Upper (Engine-Bay) Fuel Filter — 3-Micron Cartridge |
| Filtration Rating |
3 Micron Absolute |
| Water Separation |
Greater than 95% Efficiency |
| Fuel Compatibility |
ULSD, B5-B20 Biodiesel |
The Real Cost of Skipping Fuel Filter Changes
The Bosch CP3 (2010-2018) and CP4.2 (2019-2020) injection pumps operate at pressures up to 29,000 PSI with internal clearances measured in microns. A single tank of contaminated fuel can cause cavitation damage leading to pump failure—a repair costing $4,000-$12,000. At a fraction of what a fuel-system repair costs, regular filter changes are the cheapest insurance for your truck.
Frequently Asked Questions
Q: Will this fit my 2015 Ram 2500?
A: Yes. Fits all 2010-2020 Ram 2500/3500 with 6.7L Cummins.
Q: Front or rear filter?
A: This is the upper (engine-bay) filter that goes under the 28 mm housing cap on the driver's side of the engine compartment. The chassis-mounted water separator is a separate filter—Mopar 68197867AB.
Q: How often to change?
A: Every 15,000 miles or 12 months. Heavy towing or frequent idling: every 10,000 miles.
Q: Includes housing cap?
A: No. Filter element only. For cap upgrades, see our aluminum cap combo kits.
Q: B20 biodiesel compatible?
A: Yes, up to B20. If switching from petroleum diesel, change filter after first tank of B20.
