Drivetrain› Automatic Transmissions and Components

B&M Racing (Holley)

TRANSMISSION SPEEDO PORT PLUG

$48.49

SKU: B056 20298

In Stock
In Stock
Ships by Jun 14
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The B&M 20298 is a speedometer port plug designed for various manual and automatic transmissions. It is constructed from billet aluminum with a Mil-Spec black anodized finish for durability and appearance. This plug is specifically used to block the mechanical speedometer gear port when transitioning to an electronic speedometer.

It features a replaceable Buna-N rubber o-ring for a secure seal and includes stainless steel hardware. The product comes with installation instructions, making for a straightforward installation process.

Fitment

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Specifications

BrandB&M Racing (Holley)
Part NumberB056 20298

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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