Mopar 68157291AA Fuel Filter MO-291

Mopar 68157291AA Fuel Filter MO-291

$43.99
$43.99 $62.89
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Mopar 68157291AA Fuel Filter MO-291
  • Mopar 68157291AA Fuel Filter MO-291
  • Mopar 68157291AA Fuel Filter MO-291
  • Mopar 68157291AA Fuel Filter MO-291
  • Mopar 68157291AA Fuel Filter MO-291
Mopar 68157291AA Fuel Filter MO-291

Mopar 68157291AA Fuel Filter MO-291

$43.99
$43.99 $62.89

The Mopar 68157291AA is a genuine OEM fuel filter designed specifically for Ram trucks equipped with the 6.7L Cummins turbo diesel engine. Engineered to meet stringent OEM standards, this filter ensures optimal fuel cleanliness, protecting the engine from contaminants and enhancing performance.

Product Overview

  • Part Number: 68157291AA
  • Filter Type: Cartridge-style fuel filter with integrated water separator
  • Micron Rating: Two-stage filtration with 5-micron outer and 3-micron inner layers
  • Media Type: NanoNet synthetic media for superior filtration efficiency
  • Compatibility: Designed for 6.7L I6 Cummins turbo diesel engines
  • Installation Location: Engine-mounted primary fuel filter
  • OEM Quality: Meets or exceeds original equipment specifications

 

Vehicle Compatibility

The Mopar 68157291AA fuel filter is compatible with the following Ram models equipped with the 6.7L Cummins diesel engine:

  • Ram 2500: 2010–2024
  • Ram 3500: 2011–2024
  • Ram 4500: 2013–2024
  • Ram 5500: 2013–2024

Note: Always verify compatibility with your vehicle’s VIN or consult the owner’s manual to ensure proper fitment.


Cross Reference

The Mopar 68157291AA fuel filter can be cross-referenced with the following part numbers:

  • Fleetguard: FS53000
  • Baldwin: PF46108
  • Cummins: 5260529
  • WIX: WF10255NP
  • NAPA: 600255NP
  • Fram: CS11936
  • Mopar: MO-291 

Note: While these cross-references are compatible, it’s recommended to use the OEM Mopar 68157291AA filter for optimal performance.

Key Features

  • Advanced Filtration: Utilizes NanoNet technology with dual-layer filtration (5-micron outer and 3-micron inner) to effectively remove contaminants.
  • Water Separation: Integrated water separator traps and removes water from diesel fuel, protecting the fuel system.
  • Durable Construction: Designed to withstand high fuel pressures and harsh operating conditions.
  • Easy Installation: Direct replacement for factory-installed fuel filters, ensuring a hassle-free installation process.
  • OEM Assurance: Manufactured to meet or exceed original equipment specifications for fit, form, and function.

❓ FAQ

Q: Where is this fuel filter located on my Ram truck, and is it the only one?

A: The Mopar 68157291AA is the engine-mounted secondary fuel filter. It drops into the fuel filter housing located under the hood on the driver’s side of the engine bay. It is part of a dual-filter setup; if your Ram truck is a 2013 or newer model, it also uses a primary fuel/water separator filter mounted underneath the truck bed on the frame rail near the fuel tank. Both filters should be replaced at the same time.

Q: What is unique about the dual-layer NanoNet media inside this filter?

A: This filter uses proprietary multi-stage NanoNet synthetic media to provide progressive filtration. The outer layer captures larger contaminants down to 5 microns, while the high-efficiency inner layer traps microscopic particles down to an absolute 3 microns. This ultra-fine barrier is specifically engineered to shield high-pressure common rail fuel systems and expensive fuel injectors from premature wear.

Q: What are the exact step-by-step instructions for safely changing this filter and bleeding the system?

A: Replacing the engine-mounted cartridge requires opening the fuel system, which requires a specific priming routine to avoid air locks or high-pressure pump damage:

 

1.Drain the filter housing:Requires a catch pan.

Locate the yellow drain valve on the side of the engine fuel filter housing. Attach a 1/2-inch hose to the drain nipple, place the other end in a clean drain pan, and open the valve to empty the fuel out of the canister. Close the valve once it stops draining.
2.Remove the housing cap:28mm or 1-1/8 inch socket.

Use a 28mm or 1-1/8 inch socket with an extension to unscrew the plastic top cap of the filter housing. Pull the cap straight up; the old filter cartridge will clip into and lift out with the cap.
3.Swap the filter and O-ring:Do not scratch the plastic.

Snap the old filter out of the cap. Remove the old rubber O-ring seal from the cap threads. Clean the cap, install the new O-ring from the Mopar kit, and lightly coat it with clean diesel fuel. Snap the new 68157291AA filter securely into the cap.
4.Reinstall and torque:Hand tighten first.

Lower the cap and filter assembly back into the engine bay housing. Thread it on carefully by hand to avoid cross-threading, then use your socket to torque the cap down snug—do not over-tighten, as the plastic cap can crack.
5.Prime the fuel system:Crucial before cranking.

Do not try to start the engine immediately. Turn the ignition key to the "RUN" position (or press the Start button without holding the brake) and leave it there for 10–15 seconds to let the electric lift pump fill the dry canister. Turn the key off, and repeat this priming cycle 3 to 5 times before finally cranking the truck.

 

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