Drivetrain Shifters and Components

B&M

KICKDOWN SWITCH KIT TH400

$301.06

SKU: B00M 20297

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The B&M 20297 is a kickdown switch kit for GM TH400 transmissions. This kit simplifies the installation of the transmission's kickdown feature, particularly when swapping a TH400 into a vehicle that did not originally come with one. The switch mounts to the factory throttle cable bracket for straightforward integration.

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

BrandB&M
Part NumberB00M 20297

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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