Drivetrain› Manual Transmissions and Components

Valair Inc

~(15 lbs. 16X16X5)~

$288.75

SKU: V01R VA1.375K

In Stock
In Stock
Ships by Jun 8
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Non-Returnable Item
INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

Upgrade the transmission in your 1994-2003 Dodge 5.9L Cummins with the Valair 1.375" Input Shaft Upgrade Kit VA1.375K. Engineered to enhance strength in your transmission, the Valair Input Shaft Upgrade Kit replaces the factory 1-1/4" shaft and upgrades it to a robust 1-3/8" shaft so your transmission will handle the elevated horsepower of your modified Cummins engine.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandValair Inc
Part NumberV01R VA1.375K

Videos

South Bend Input Shaft Upgrade Install

South Bend Input Shaft Upgrade Install
Dodge NV4500 1-3/8 input shaft

Dodge NV4500 1-3/8 input shaft

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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