Timken M903345 Differential Pinion Bearing - Rear Inner

Name: Timken M903345 Differential Pinion Bearing - Rear Inner
Brand: Timken
SKU: BCPZ-M903345
Price: 64.20 USD
Availability: OutOfStock

Rear Inner

80 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Chevrolet, GMC, and Ford, C3500, K3500, R3500, V3500, R30, V30, C30, K30, and E-300 Econoline

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Reliable Differential Pinion Bearing for Chevrolet and GMC Trucks

The Timken M903345 differential pinion bearing is engineered to provide dependable performance for heavy-duty Chevrolet and GMC trucks. Designed specifically for models such as the C30, C3500, K30, K3500, R30, R3500, V30, and V3500, this bearing ensures smooth driveline operation under demanding conditions.

Key Features of Timken M903345 Differential Pinion Bearing

Precision-engineered for differential pinion applications
Compatible with Chevrolet and GMC heavy-duty truck models including C30, C3500, K30, K3500, R30, R3500, V30, and V3500
Durable construction to withstand high torque and load
Manufactured by Timken, a trusted name in driveline and axle components
Part number M903345 ensures exact fit and reliable replacement

Detailed Product Description

The Timken M903345 differential pinion bearing is designed to support the pinion gear within the differential assembly, reducing friction and wear during operation. This bearing is critical for maintaining proper gear alignment and smooth rotation, which directly impacts the driveline efficiency and vehicle performance. Compatible with a range of Chevrolet and GMC heavy-duty trucks, including the C30, C3500, K30, K3500, R30, R3500, V30, and V3500 models, it meets OEM specifications for fit and function. Timken's manufacturing standards ensure consistent quality and durability, making this bearing a reliable choice for maintaining your vehicle's driveline integrity.

Common Applications and Issues Addressed

Replacement for worn or damaged differential pinion bearings
Eliminates excessive noise or vibration from the differential
Prevents premature wear of pinion gears and related components
Restores proper gear alignment and smooth driveline operation
Addresses issues related to bearing failure in Chevrolet and GMC heavy-duty trucks

Installation Notes and Tips

Ensure compatibility with your specific Chevrolet or GMC model before installation
Inspect the differential housing and pinion gear for wear or damage prior to bearing replacement
Use proper tools and follow manufacturer torque specifications during installation
Clean all mating surfaces to prevent contamination and ensure proper seating
Consider replacing seals and related components during bearing service for optimal performance

Quality Assurance and Warranty Information

Timken manufactures the M903345 differential pinion bearing to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty terms may vary, Timken products typically come with a limited warranty against defects in materials and workmanship. This bearing is produced to provide consistent fit and function, supporting the longevity of your Chevrolet or GMC heavy-duty truck's driveline system.

This part fits 80 vehicles. Search below:

Year	Make	Model	Position	Notes
1991	Chevrolet	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	Chevrolet	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	Chevrolet	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	Chevrolet	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	GMC	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1991	GMC	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	Chevrolet	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	Chevrolet	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	Chevrolet	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	Chevrolet	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	GMC	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1990	GMC	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	Chevrolet	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	Chevrolet	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	Chevrolet	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	Chevrolet	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	GMC	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1989	GMC	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	Chevrolet	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	Chevrolet	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	Chevrolet	R30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	Chevrolet	V30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	GMC	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1988	GMC	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1987	Chevrolet	R30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1987	Chevrolet	R30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1987	Chevrolet	V30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1987	Chevrolet	V30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1987	GMC	R3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1987	GMC	R3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1987	GMC	V3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1987	GMC	V3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1986	Chevrolet	C30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1986	Chevrolet	C30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1986	Chevrolet	K30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1986	Chevrolet	K30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1986	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1986	GMC	C3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1986	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1986	GMC	K3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1985	Chevrolet	C30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1985	Chevrolet	C30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1985	Chevrolet	K30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1985	Chevrolet	K30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1985	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1985	GMC	C3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1985	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1985	GMC	K3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1984	Chevrolet	C30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1984	Chevrolet	C30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1984	Chevrolet	K30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1984	Chevrolet	K30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1984	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1984	GMC	C3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1984	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1984	GMC	K3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1983	Chevrolet	C30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1983	Chevrolet	C30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1983	Chevrolet	K30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1983	Chevrolet	K30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1983	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1983	GMC	C3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1983	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1983	GMC	K3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1982	Chevrolet	C30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1982	Chevrolet	C30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1982	Chevrolet	K30	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1982	Chevrolet	K30	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1982	GMC	C3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1982	GMC	C3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.
1982	GMC	K3500	Rear Inner	Fits differential bearing for Rockwell C100 Axle.
1982	GMC	K3500	Rear Inner	Compatible with vehicles equipped with an H110 Axle.

* 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.