Fits GM TH350, TH350c, Powerglide, Muncie M-20, and Aisin AY6

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.

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 Aisin AY6
  Muncie M-20
  Powerglide
  TH350
  TH350 C
UPC 090127107430
Part Number 20299
SKU 20299
Barcode # 90127107430
Brand B&M
Shipping Weight 0.0400kg
Shipping Width 0.100m
Shipping Height 0.130m
Shipping Length 0.190m

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