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#42520299
$39.17
/kit
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$42.37
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Muncie 4-Speed, Powerglide, TH350, Billet Aluminum
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855.313.9176Quick and Easy Returns
Return PolicyM 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.
| KEY SPECS | |
|---|---|
| MFG. Part # | 20299 |
| Brand | B&M |
| GENERAL | |
| Sold in Quantity | Each |
| GTIN Code | 090127107430 |
| Material Type | Billet Aluminum |
| Finish | Anodized |
5
16 Reviews
Customers highly appreciate the product for its excellent fit, easy installation, and great quality. Many report that it aligns perfectly with a 4-speed Saginaw without protruding, creating ample space for the shifter and linkages. Recognized for its practicality, it effectively stops leaks and is ideal for a speedo cable deletion. The product is not only functional but also aesthetically superior. Despite alternatives being slightly cheaper, customers recommend this product for its superior performance and value.
5
16 reviews
5
16
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I would buy again
5.0
7 months ago
Roneski
Rapid city SD.
Verified
The product worked as it should.
Would Recommend
Good product
5.0
8 months ago
Zees
Kingsport TN
Verified
Works as designed
Would Recommend
Worked perfect.
5.0
9 months ago
DJ
South East Georgia
Verified
Worked great and looks good on my Saginaw 3 speed.
Would Recommend
Once you have this you don't need anything else for the job
5.0
a year ago
robo
Colorado
Verified
this little device allows for isolation of transmission leak source when trouble shooting for leaks, good to have in your toolbox
Would Recommend
Perfect fit
5.0
a year ago
31Rod
Princeton NC
Verified
Switched to GPS speedometer. This plug fit my TH350 perfect. No leaks.
Would Recommend
Fit my TH350 perfectly
5.0
a year ago
Rejektd
Princeton NC
Verified
Trans had a horrible leak from the speedo cable port on my TH350. Going with a GPS speedometer so needed to plug the port anyways. This piece fit PERFECT. Literally a 5 min install from start to finish. Very happy with it and looks great. Well made piece.
Would Recommend
I would buy this product again and I would recommend it
5.0
2 years ago
Scooter
Lamar indiana
Verified
Great looking product and fit perfect, I will definitely recommend this product to my friends.
Would Recommend
Worked great
5.0
2 years ago
Jimbob
Sutherlin, Or
Verified
Used in my th350 transmission. Happy they made such a plus.
Would Recommend
Saginaw 441
5.0
3 years ago
Bryce
Yuma, AZ
Verified
I bought this for a 4 speed saginaw. Everything lined up great, it fit in the speedo hole snug and without any leaks. Doesn't protrude any giving tons of space for my shifter and linkages. I'm sure you could save 5 dollars on something else, but it wouldn't look as good or be as easy.
Would Recommend
Worked great
5.0
3 years ago
Fast 40
St Paul , MN
Verified
Straight forward install
Would Recommend
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