Valair VA1.375K Heavy Duty Input Shaft Kit For NV4500 – Fits Dodge Diesel Cummins (1.375″ Large HD)

If you're building or rebuilding an NV4500 transmission for a heavy-duty Dodge Diesel Cummins, you need this Valair input shaft kit.

This is the VA1.375K, the heavy-duty version with the larger 1.375-inch input shaft.

It's a brand new kit designed to handle the massive torque of a diesel.

This isn't just Valair; it's also compatible with South Bend clutch components and other high-performance setups like BD and HP Performance parts.

Whether you're swapping parts or doing a full rebuild, this kit has the critical components you need to keep your truck on the road.

Don't risk a stock shaft with a tuned Cummins—upgrade to this heavy-duty Valair kit and do it right the first time.