HomeDriveline and Axles > BearingsTimken NP912904 Differential Pinion Race - Rear Inner
Part #: NP912904

Timken NP912904 Differential Pinion Race - Rear Inner

Rear Inner
77 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Dodge, Dakota, Nitro, Durango, Ram 1500, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, and B1500
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Timken NP912904 Differential Pinion Race Overview

The Timken NP912904 differential pinion race is engineered for reliable driveline performance in Dodge and Ram vehicles. Designed to meet precise specifications, this component ensures proper bearing fitment and durability for models including the Ram 1500, Ram 2500 Van, and Dodge Durango.

  • Width options: 0.750 inch (19.05 mm) and 0.750 inch (19.05 mm)
  • Outside diameter: 3.500 inch (88.90 mm)
  • Bearing cup radius: 0.130 inch (3.30 mm)
  • Compatible with multiple Dodge and Ram models
  • Part number NP912904 for accurate identification

Technical Specifications and Compatibility

This Timken differential pinion race features a precise outside diameter of 3.500 inches (88.90 mm) and a bearing cup radius of 0.130 inches (3.30 mm), ensuring a secure fit within the differential assembly. The width measures 0.750 inches (19.05 mm), providing the correct seating surface for the pinion bearing. These dimensions are critical for maintaining proper gear alignment and minimizing wear in the driveline system.

Compatible with Dodge and Ram models such as the Ram 1500, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, Dodge Dakota, Durango, B1500, and Nitro, this part supports a range of applications requiring reliable differential performance.

Applications and Problem Resolution

  • Restores proper pinion bearing seating in Dodge Ram differentials
  • Addresses noise and vibration caused by worn or damaged pinion races
  • Prevents premature bearing failure due to improper fit
  • Supports smooth gear operation in Ram 1500 and Dodge Durango models
  • Ensures correct alignment in Ram 2500 and 3500 Van differentials

Installation Notes and Tips

  • Ensure the differential housing is clean and free of debris before installation
  • Use appropriate tools to press the pinion race evenly into place
  • Verify dimensions match OEM specifications for your specific Dodge or Ram model
  • Inspect bearings and related components for wear during installation
  • Follow manufacturer torque specifications for reassembly

Quality Assurance and Warranty

Timken manufactures the NP912904 differential pinion race to meet industry standards for durability and precision. While specific warranty details may vary, Timken products typically come with a limited warranty against defects in materials and workmanship. This ensures confidence in the part’s performance within compatible Dodge and Ram vehicles.

This part fits 77 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2016Ram1500Rear Inner
2015Ram1500Rear Inner
2014Ram1500Rear Inner
2013Ram1500Rear Inner
2012Ram1500Big HornRear Inner
2011Ram1500Rear Inner
2010DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2010DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2010DodgeNitroRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2009DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2009DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2009DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2009DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2009DodgeNitroRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2008DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2008DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2008DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2008DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2008DodgeNitroRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2008DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2007DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2007DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2007DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2007DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2007DodgeNitroRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2007DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2006DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2006DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2006DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2006DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2006DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2005DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2005DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2005DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2005DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2005DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2004DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2004DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2004DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2004DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2004DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2003DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2003DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2003DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2003DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2003DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2003DodgeRam 1500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2003DodgeRam 2500 VanRear InnerChrysler Axle Rear Ring Gear 9.25 in.
2003DodgeRam 3500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2002DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2002DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2002DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2002DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2002DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2002DodgeRam 1500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2002DodgeRam 2500 VanRear InnerChrysler Axle Rear Ring Gear 9.25 in.
2002DodgeRam 3500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2001DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2001DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2001DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2001DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2001DodgeRam 1500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2001DodgeRam 2500 VanRear InnerChrysler Axle Rear Ring Gear 9.25 in.
2001DodgeRam 3500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2000DodgeDakotaRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2000DodgeDakotaRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2000DodgeDurangoRear InnerCompatible with 8 Inch Ring Gear transfer case output shaft bearing.
2000DodgeDurangoRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2000DodgeRam 1500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
2000DodgeRam 2500 VanRear InnerChrysler Axle Rear Ring Gear 9.25 in.
2000DodgeRam 3500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1999DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1999DodgeRam 1500 VanRear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1998DodgeB1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1998DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1997DodgeB1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.
1997DodgeRam 1500Rear InnerDifferential Pinion Race must be used with Differential Pinion Seal for proper installation.

* 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.