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Mopar 68436631AA Fuel Water Separator Filter - SecondaryOE Quality 60-Day Returns
Part #: 68436631AA

Mopar 68436631AA Fuel Water Separator Filter - Secondary

Secondary
17 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep and Ram, 1500, 2500, 3500, and Wrangler
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Mopar Fuel Water Separator Filter 68436631AA

The Mopar 68436631AA fuel water separator filter is a direct-fit service part for select Ram and Jeep diesel applications. It is used to separate water and contaminants from fuel before they reach the engine’s fuel system, helping maintain clean fuel delivery in the applications listed below.

Key Features

  • Mopar fuel water separator filter for diesel fuel system service
  • Part number 68436631AA for easy identification and ordering
  • Fits 2023-2024 Ram 2500 and Ram 3500, secondary, chassis mounted
  • Fits 2020-2022 Ram 1500 element-only applications
  • Fits 2019-2022 Ram 2500 and Ram 3500 element-only applications
  • Fits 2020-2021 Jeep Wrangler element-only applications
  • Element-only applications include a small O-ring and a larger O-ring

Detailed Description

This Mopar fuel water separator filter is built for select Ram and Jeep models that use a secondary chassis-mounted filter or an element-only service design. For 2023-2024 Ram 2500 and Ram 3500 trucks, it fits the secondary, chassis-mounted position. For 2020-2022 Ram 1500, 2019-2022 Ram 2500, 2019-2022 Ram 3500, and 2020-2021 Jeep Wrangler, it fits element-only applications and includes a small O-ring and a larger O-ring as noted in the fitment data. The part number 68436631AA is the key reference for matching the correct service filter to the vehicle.

This part cross-references no listed interchange numbers in the provided data.

What It Is Used For

  • Removing water from diesel fuel before it reaches the fuel system
  • Replacing a restricted or contaminated fuel water separator element
  • Restoring proper service intervals on Ram diesel fuel filtration systems
  • Addressing fuel contamination concerns in Jeep Wrangler diesel service applications
  • Supporting clean fuel delivery in secondary chassis-mounted filter setups

Installation Notes and Tips

Verify the vehicle year, model, and filter position before ordering. Fits 2023-2024 Ram 2500, secondary, chassis mounted; fits 2023-2024 Ram 3500, secondary, chassis mounted; fits 2020-2022 Ram 1500, element only; fits 2019-2022 Ram 2500, element only; fits 2019-2022 Ram 3500, element only; and fits 2020-2021 Jeep Wrangler, element only. For element-only applications, confirm the small O-ring and larger O-ring are transferred or replaced as required by the service procedure.

Quality Assurance

Genuine Mopar service part identified by part number 68436631AA for the listed Ram and Jeep applications.

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2024Ram2500SecondaryChassis Mounted
2024Ram3500SecondaryChassis Mounted
2023Ram2500SecondaryChassis Mounted
2023Ram3500SecondaryChassis Mounted
2022Ram15003.6LV6N/AElement Only; Includes a small o-ring and a larger o-ring
2022Ram25006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2022Ram35006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2021JeepWrangler2.0LL4N/AElement Only; Includes a small o-ring and a larger o-ring
2021Ram15003.6LV6N/AElement Only; Includes a small o-ring and a larger o-ring
2021Ram25006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2021Ram35006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2020JeepWrangler2.0LL4N/AElement Only; Includes a small o-ring and a larger o-ring
2020Ram15003.6LV6N/AElement Only; Includes a small o-ring and a larger o-ring
2020Ram25006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2020Ram35006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2019Ram25006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring
2019Ram35006.4LV8N/AElement Only; Includes a small o-ring and a larger o-ring

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

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