Valair VA1.375K NV4500 1-3/8 input shaft kit

This Valair NV4500 1.375-inch input shaft kit is designed to upgrade or replace worn factory components in Dodge manual transmissions. The kit includes all required parts to convert or service transmissions using the larger 1.375-inch input shaft, improving strength and reliability under higher torque loads.

It is ideal for performance, towing and diesel applications where durability and precise clutch engagement are critical. Valair specializes in high-performance clutch systems for 3/4-ton and 1-ton diesel pickup trucks.

Features

• Upgrades the NV4500 to the larger 1.375in (1-3/8in) input shaft
• Improves strength and reliability under higher torque loads
• Complete kit with all required parts to convert or service the transmission
• Suited to performance, towing and diesel applications

Specifications

• Part Number: VA1.375K
• Input shaft diameter: 1.375in
• Transmission: NV4500 5-speed manual

Fitment

• Dodge trucks with the NV4500 5-speed manual transmission
• 1994-2003 Dodge Ram 2500/3500 5.9L Cummins with NV4500

What’s Included

• 1.375in input shaft with bearing pressed on
• Retainer with front seal and bearing race installed
• Pocket bearing
• Thrust bearing