Description
Transmission Speedometer Port Plug; Fits w/GM TH350/TH350C/Powerglide/Muncie M-20/Aisin AY6 Transmissions; Aluminum;
B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits GM TH350, TH350c, Powerglide, Muncie M-20 and Aisin AY6 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.
DETAILS:
- Holley Performance Emission Code 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
- Manual Transmission Case Plug
- Transmission Speedometer Port Plug
- Billet Aluminum Construction
- Includes Stainless Steel Hardware
- Mil-Spec Black Anodized Finish
- Perfect For Electronic Speedometer Conversions
- Replaceable O-Ring Seal
- TRANSMISSION SPEEDO PORT PLUG; GM TH350
- M/TCasePlg
Part Number 20299 SPECS:
- WARNING CA Proposition 65: No
Port Plug – Speedometer – Hardware Included – Aluminum – Black Anodized – B&M Logo – TH350 / TH350C – GM – Each






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