SKU: 18592813462

B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20299

Sale price$35.25 Regular price$39.17
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20299Overview: 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

Overview:

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

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand B&M
Emission Code 5
Item Grade High Performance
Material Aluminum
Product Type speedometer port plug
Transmission Aisin AY6
Transmission Muncie M-20
Transmission Powerglide
Transmission TH350
Transmission TH350 C
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18592813462

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4.2 ★★★★★
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Verified Purchase
Jessica
Fort Morgan, US
★★★★★ 5
Perfect!
Color: Royal Blue, Size: 12 Years, Color: Royal Blue, Size: 12 Years
I was nervous about purchasing something like this at the last minute. But based on the previous reviews I decided to take a chance. The suit is nice and the material feels really good. Not thin or cheap at all. My son looked so handsome and grown up. He’s on the slim side so he does have extra room but I don’t mind it because he can definitely grow into it. I did purchase a separate tie because I wanted a pattern to complement the blue. I’d definitely purchase again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
A
Verified Purchase
Angelbaby
Louisville, US
★★★★★ 4
Big in waist
Color: Grey, Size: 12 Years
Very nice suit, the material was nice. My son is an average build, the suit fit on the length but unfortunately the pants were huge in the waist. Even with the inside waist adjuster and a belt he couldn't wear them. Which was disappointing because overall the rest of the suit was perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
M
Verified Purchase
Mckayla
Los Angeles, US
★★★★★ 5
Perfect
Color: Royal Blue, Size: 8 Years
The tops fit perfectly however my 6 year old is very tall and slim so the pants were a little big but at least the adjustable straps on the inside will help..love the color
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
T
Verified Purchase
tonye andrews
Massapequa, US
★★★★★ 5
Worth the money
Color: Navy Blue, Size: 12 Years, Color: Navy Blue, Size: 12 Years
Came just in time for my son graduation and he was very sharp and handsome
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
D
Verified Purchase
DOESNT come with everything buy it new don’t buy it used
Waukegan, US
★★★★★ 5
Buy it, you won’t regret it
Color: Royal Blue, Size: 6 Years, Color: Royal Blue, Size: 6 Years
Love it. Beautiful I returned 2 because I accidentally ordered smaller Reordered and fits perfect. The left one is size 6. Reordered 7 and fits better because he is tall The left I had ordered size 2 accidentally and it was size 4 Totally recommend My returns might count as recent returned. But on my opinion please do not look at that part. Great material. Shirt is beautiful Cloth for everything is perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026

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