Timken NP728109 Manual Transmission Input Shaft Race

Timken NP728109 Manual Transmission Input Shaft Race

Timken NP728109 is a manual transmission input shaft race for select Chevrolet Silverado and GMC Sierra trucks from 2000-2007. It is built for manual transmission service where the bearing race must handle both radial and axial loads while maintaining stable operation under demanding use.

Key Features

• Manual transmission input shaft race for transmission bearing service
• Timken tapered roller bearing component engineered for higher speeds and heavier loads
• Supports both radial and axial load management
• Compact design for durable performance in limited space
• Fits select Chevrolet Silverado 2500, Silverado 2500 HD, Silverado 3500, C2500, K2500, and GMC Sierra 2500, Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, C2500, C3500, K2500, and K3500 applications

Detailed Description

This Timken NP728109 manual transmission input shaft race is used in tapered roller bearing assemblies that support transmission shaft operation. Timken’s bearing engineering focuses on durability, load control, and long service life in compact drivetrain packaging. For reliable service, the inner cone and outer cup should be replaced together when the bearing assembly is serviced. This part cross-references no listed aftermarket part numbers in the provided data.

What It Helps Address

• Transmission bearing wear at the input shaft race
• Noise or roughness from a worn tapered roller bearing surface
• Excessive play in manual transmission bearing components
• Load-related wear in high-mileage Chevrolet Silverado and GMC Sierra manual transmissions
• Service needs during transmission rebuild or bearing replacement

Installation Notes and Tips

Confirm transmission application before installation and inspect the matching cone and cup surfaces for wear. Replace the inner cone and outer cup at the same time to maintain bearing reliability and service life. Verify the race seats correctly and that all mating components are clean before assembly.

Quality Assurance

Timken is a recognized global manufacturer of tapered roller bearing components, with engineering focused on load capacity, durability, and drivetrain service life. Part number NP728109 is built for manual transmission bearing applications in the listed Chevrolet Silverado and GMC Sierra models.