B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits GM 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.
Features:
Billet Aluminum Construction with Engraved B&M Logo
Protects Your Transmission from Contaminants during use or storage
Replaceable O-ring seal for leak prevention and simple maintenance
Perfect for Electronic Speedometer Conversions
Mil-Spec Black Anodized Finish for long lasting good looks
Includes Stainless Steel Hardware for Superior Corrosion Resistance
Specs
Brand
B&M
Emission Code
5
Item Grade
High Performance
Material
Aluminum
Product Type
speedometer port plug
Transmission
TH400
Part Number
20301
Emissions
5
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.