Ignitions and Electrical› Wiring Components

TCI Automotive

Speedo Control Box Kit GM w/Clip on Cable

$787.95

SKU: T00M 377311

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The TCI Speedometer Control Unit (MPN: 377311) is designed for pre-1976 GM vehicles with a 5/8 inch threaded cable. This unit allows for full configuration to match any tire size and rear gear ratio, ensuring accurate speedometer readings. It is manufactured by TCI Automotive, a company with over 50 years of experience in performance automotive products.

Fitment

Fitment Guaranteed

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on fit.

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

BrandTCI Automotive
Part NumberT00M 377311

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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