HomeDriveline and Axles > BearingsTimken NP673386 Differential Pinion Race - Rear Inner or Rear Outer
Part #: NP673386

Timken NP673386 Differential Pinion Race - Rear Inner or Rear Outer

Rear Inner
65 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ram and Ford, 2500, F-350 Super Duty, E-350 Super Duty, E-350 Club Wagon, E-250 Econoline, E-350 Econoline Club Wagon, and F-250 Super Duty
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Timken Differential Pinion Race Overview

The Timken NP673386 differential pinion race is engineered for reliable driveline performance in select Ford and Ram vehicles. Designed to meet OEM specifications, this component ensures proper bearing fitment and smooth differential operation for models such as the Ford F-250 Super Duty and Ram 1500.

  • Precision-machined differential pinion race for accurate bearing seating
  • Compatible with Ford and Ram trucks including F-250 Super Duty, F-350 Super Duty, Ram 1500, and Ram 2500
  • Durable construction to withstand heavy-duty driveline stresses
  • Part number NP673386 for exact replacement and fitment
  • Supports optimal differential function and longevity

Product Details and Compatibility

This Timken differential pinion race (part number NP673386) is specifically designed for use in the driveline and axles category, providing a critical interface for the pinion bearing in the differential assembly. It is compatible with a range of Ford and Ram vehicles, including the Ford F-250 Super Duty, F-350 Super Duty, Ram 1500, Ram 2500, and various E-Series vans such as the E-250 Econoline and E-350 Club Wagon models. The precision fit ensures proper bearing alignment and reduces wear, contributing to the overall durability of the differential system.

Common Applications and Problem Resolution

  • Restores proper pinion bearing seating in Ford and Ram differentials
  • Addresses issues related to differential noise caused by worn or damaged races
  • Helps eliminate excessive play or vibration in the driveline
  • Prevents premature bearing failure due to improper fitment
  • Supports smooth gear engagement and differential operation

Installation Notes and Tips

When installing the Timken NP673386 differential pinion race, ensure the differential housing is clean and free of debris. Use appropriate tools to press the race evenly into place without damaging the surface. Verify correct orientation and seating depth according to vehicle service manuals for Ford and Ram models. Proper installation is critical to maintain bearing alignment and prevent premature wear.

Quality Assurance and Warranty

Timken manufactures the NP673386 differential pinion race to meet stringent quality standards, ensuring durability and performance in demanding applications. While specific warranty details may vary, Timken products typically come with a limited warranty against defects in materials and workmanship. Refer to Timken’s official documentation for complete warranty information.

This part fits 65 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2020Ram2500Rear Inner
2019Ram2500Rear Inner
2018Ram2500Rear Inner
2017Ram2500Rear Inner
2016FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2016Ram2500Rear Inner
2015FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2015Ram2500Rear Inner
2014FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2014Ram2500Rear Inner
2013FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2013Ram2500Rear Inner11.5 in. Ring Gear
2012FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2012Ram1500Tradesman HDRear Inner11.5 in Ring Gear
2012Ram2500Rear Inner11.5 in. Ring Gear
2011FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2010FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2010FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2009FordF-350 Super DutyRear InnerCompatible with vehicles equipped with dual rear wheels.
2009FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2008FordE-350 Super DutyRear InnerDana/Spicer 80 Axle
2008FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2008FordF-350 Super DutyRear OuterDual Rear Wheels - Wide Frame
2007FordE-350 Super DutyRear InnerDana/Spicer 80 Axle
2007FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2007FordF-350 Super DutyRear OuterDual Rear Wheels - Wide Frame
2006FordE-350 Super DutyRear InnerDana/Spicer 80 Axle
2006FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2006FordF-350 Super DutyRear OuterDual Rear Wheels - Wide Frame
2006FordF-350 Super DutyRear Inner11.25 in. Ring Gear
2005FordE-350 Club WagonRear InnerDana/Spicer 80 Axle
2005FordE-350 Super DutyRear InnerDana/Spicer 80 Axle
2005FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2005FordF-350 Super DutyRear OuterDual Rear Wheels - Wide Frame
2004FordE-350 Club WagonRear InnerDana/Spicer 80 Axle
2004FordE-350 Super DutyRear InnerDana/Spicer 80 Axle
2004FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2004FordF-350 Super DutyRear InnerDana Axle
2003FordE-350 Club WagonRear InnerDana/Spicer 80 Axle
2003FordE-350 Club WagonRear Inner11.25 in. Ring Gear
2003FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2003FordF-350 Super DutyRear Inner11.25 in. Ring Gear
2003FordF-350 Super DutyRear InnerDana Axle
2002FordE-250 EconolineRear InnerDana Axle
2002FordE-350 Econoline Club WagonRear InnerDana/Spicer 80 Axle
2002FordE-350 Econoline Club WagonRear Inner11.25 in. Ring Gear
2002FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2002FordF-350 Super DutyRear Inner11.25 in. Ring Gear
2002FordF-350 Super DutyRear InnerDana Axle
2001FordE-250 EconolineRear InnerDana Axle
2001FordE-350 Econoline Club WagonRear InnerDana/Spicer 80 Axle
2001FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2001FordF-350 Super DutyRear Inner11.25 in. Ring Gear
2001FordF-350 Super DutyRear InnerDana Axle
2000FordE-250 EconolineRear InnerDana Axle
2000FordE-350 Econoline Club WagonRear InnerDana/Spicer 80 Axle
2000FordE-350 Econoline Club WagonRear Inner11.25 in. Ring Gear
2000FordF-250 Super DutyRear InnerDana Axle
2000FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
2000FordF-350 Super DutyRear Inner11.25 in. Ring Gear
2000FordF-350 Super DutyRear InnerDana Axle
1999FordE-350 Econoline Club WagonRear InnerDana/Spicer 80 Axle
1999FordE-350 Econoline Club WagonRear Inner11.25 in. Ring Gear
1999FordF-350 Super DutyRear InnerDana/Spicer 80 Axle
1999FordF-350 Super DutyRear Inner11.25 in. Ring Gear

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

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.