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Celebrating 250 Years of American Freedom. More Horsepower. More Burnouts.
Celebrating 250 Years of American Freedom. More Horsepower. More Burnouts.

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Fits GM and B.O.P. TH400 Transmissions

by B&M
Save 14% Save 14%
Original price $58.28
Original price $58.28 - Original price $58.28
Original price $58.28
Current price $49.95
$49.95 - $49.95
Current price $49.95

B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits GM and B.O.P. TH400 transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna-N-rubber o-ring. It features a black Mil-Spec anodized finish for long-lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation.

Processing & Shipping Overview

Processing occurs before shipping.

Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.

Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.

For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.



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