- Transmission & Drivetrain
- Automatic Transmission Components
- B&M Transmission Speedometer Port Plug
Billet Aluminum Speedometer Plugs
When upgrading to an electronic speedometer, B&M billet aluminum Transmission Speedometer Port Plugs prevent contaminants from entering your transmission by blocking the mechanical speedometer gear port. These durable block-off port plugs are available to fit various transmission styles.
Filter Results
AVAILABILITY
PART TYPE
PART TYPE
BRAND
BRAND
RATING
Part Category
Vendor Part Number
Part Fitment
Material
PRICE
B&M 20298
B&M Transmission Speedometer Port Plug for Ford T-5 and T-56 Magnum, Borg Warner T-45, and TKO 3550 Transmissions
$30.95
(1)
Ships Today
Lowest Price Guarantee
B&M 20299
B&M Transmission Speedometer Port Plug for GM TH350, TH350c, Powerglide, Muncie M-20, and Aisin AY6
$31.95
(3)
Ships Today
Lowest Price Guarantee
B&M 20300
B&M Transmission Speedometer Port Plug for Mopar TF-727, 36RH, 37RH, 46RH, and 47RH Transmissions
$41.09
Estimated to ship direct from manufacturer in 24hrs
Lowest Price Guarantee