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 front chassis-mounted filter located under the driver-side frame rail—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 |
Canister-Style Fuel/Water Separator |
| 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 under $20, 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: Front chassis-mounted filter under driver-side frame rail. Rear engine-bay filter is 68436631AA.
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.
