NSK STFR40-101G5U1U01 Differential Pinion Bearing - Rear Inner

Reliable Differential Pinion Bearing for Toyota Tundra

The NSK Differential Pinion Bearing STFR40-101G5U1U01 is designed specifically for Toyota Tundra models, providing precise fitment and dependable performance. Engineered to meet OEM specifications, this bearing supports smooth driveline operation and helps maintain vehicle stability.

• Inside diameter: 40 mm for accurate shaft fitment
• Outside diameter: 90 mm ensuring proper housing compatibility
• Kit includes 1 cup and 1 cone for complete installation
• Part number STFR40-101G5U1U01 for exact replacement
• Compatible with Toyota Tundra driveline and axle assemblies

Technical Details and Specifications

This NSK differential pinion bearing features a 40 mm inside diameter, which fits precisely on the pinion shaft of the Toyota Tundra. The 90 mm outside diameter matches the differential housing bore, ensuring a secure and stable fit. The kit contains both the cup and cone components necessary for a full bearing replacement, facilitating proper assembly and alignment within the differential system. The part number STFR40-101G5U1U01 identifies this specific bearing, allowing for straightforward ordering and verification against OEM parts.

Applications and Problem Resolution

This differential pinion bearing is used in the driveline and axle assembly of Toyota Tundra vehicles. It supports the pinion gear, enabling smooth rotation and torque transfer within the differential. Replacing this bearing can address several common issues:

• Excessive noise or whining from the differential
• Vibration or roughness during acceleration or deceleration
• Uneven or premature wear of differential gears
• Oil leaks caused by worn bearing seals
• Reduced driveline efficiency and performance

Installation Notes and Tips

When installing the NSK differential pinion bearing STFR40-101G5U1U01 on a Toyota Tundra, ensure the bearing surfaces are clean and free of debris. Proper lubrication of the bearing components is essential to prevent premature wear. Use appropriate tools to press the cup and cone into place without causing damage. Verify correct preload and backlash settings according to Toyota service specifications to maintain optimal differential function.

Quality Assurance and Warranty

NSK manufactures this differential pinion bearing to meet stringent quality standards, ensuring durability and reliable performance in Toyota Tundra applications. The part undergoes rigorous testing for dimensional accuracy and material integrity. While specific warranty details may vary, NSK typically offers coverage against manufacturing defects, providing confidence in the longevity of the STFR40-101G5U1U01 bearing.