HomeDriveline and Axles > BearingsTimken 31590 Differential Pinion Bearing - Rear Outer
Part #: 31590

Timken 31590 Differential Pinion Bearing - Rear Outer

Rear Outer
7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Pontiac and Dodge, Catalina, Chieftain, Star Chief, B-1, and B-1 Truck
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Reliable Differential Pinion Bearing for Pontiac Catalina

The Timken 31590 differential pinion bearing is engineered to provide dependable performance for your Pontiac Catalina. Designed specifically for driveline and axle applications, this bearing ensures smooth operation and durability under demanding conditions.

  • Precision-engineered for Pontiac Catalina driveline systems
  • Part number 31590 ensures exact fit and compatibility
  • Manufactured by Timken, a trusted name in bearing technology
  • Supports optimal differential pinion shaft rotation
  • Durable construction for extended service life

Product Details and Specifications

The Timken 31590 differential pinion bearing is a critical component in the driveline and axles category, designed to support the pinion gear within the differential assembly of the Pontiac Catalina. This bearing reduces friction and wear on the pinion shaft, contributing to smoother gear engagement and quieter operation. Its precise dimensions and robust materials meet OEM standards, ensuring reliable fitment and performance. The part number 31590 corresponds directly to this specific bearing, facilitating easy identification and replacement.

Compatible Applications and Use Cases

This differential pinion bearing is compatible with Pontiac Catalina models, providing a direct replacement for worn or damaged bearings in the differential assembly. It addresses common driveline issues such as:

  • Excessive noise or whining from the differential
  • Vibration or roughness during acceleration or deceleration
  • Uneven or premature wear on differential gears
  • Reduced efficiency in power transfer to the wheels
  • Potential pinion shaft misalignment or play

Installation Notes and Tips

When installing the Timken 31590 differential pinion bearing on a Pontiac Catalina, ensure the differential housing and pinion shaft are clean and free of debris. Proper bearing preload and torque specifications should be followed according to the vehicle’s service manual. It is recommended to inspect related components such as seals and races during installation to maintain overall driveline integrity.

Quality Assurance and Warranty Information

Timken bearings are manufactured to meet stringent quality standards, ensuring consistent performance and durability. The 31590 differential pinion bearing undergoes rigorous testing to verify dimensional accuracy and material integrity. While specific warranty details may vary, Timken typically offers coverage against manufacturing defects, providing confidence in the product’s reliability for Pontiac Catalina owners.

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
1956PontiacCatalinaRear Outer
1955PontiacCatalinaRear Outer
1954PontiacCatalinaRear Outer
1953PontiacCatalinaRear Outer
1952PontiacCatalinaRear Outer
1951PontiacCatalinaRear Outer
1950PontiacCatalinaRear Outer

* 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.