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The Mopar 68436631AA is a genuine OEM chassis-mounted fuel/water separator for select 2019–2024 Ram 1500, 2500 and 3500 and Jeep Gladiator and Wrangler diesels. It uses two-micron multi-layer synthetic depth media to pull water and fine contaminants out of diesel before they reach the injection system. Mopar recommends replacing it every 20,000–40,000 miles depending on conditions. It is the factory part, so fit and filtration match the original; aftermarket separators often filter less finely or skip the OEM housing seal.
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Lowest price we've seen: $8.99 on Nov 13 at eBay. Tracked across 14 stores since Nov 13.
The Mopar 68436631AA is a genuine OEM fuel/water separator filter kit for select Ram and Jeep diesel vehicles. It removes water and contaminants from diesel fuel before they reach the rest of the fuel system. This helps prevent corrosion and injector damage.
It is a chassis-mounted primary filter that mounts underneath the vehicle near the fuel tank at the rear. It uses synthetic fiber media for multi-layer depth filtration with a two-micron rating, which traps very small suspended particles. It is a factory requirement on the listed 6.7L Cummins and 3.0L EcoDiesel applications.
Replacement is recommended every 20,000 to 40,000 miles, depending on driving conditions. Verify fitment with your vehicle's VIN or owner's manual before installing.
