SKU: 18592813462

B&M TRANSMISSION SPEEDOMETER PORT PLUG - 20299

Sale price$35.25 Regular price$39.17
Save 10%

Pay in installments of $9.79 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Janet Butterfield
Lowell, US
★★★★★ 5
Good size for end a bedroom end table
Color: Black
Perfect size for his bed table. It holds his glasses, change and just about everything it needs to hold. And it looks nice too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
P
Verified Purchase
Patricia Davis
Louisville, US
★★★★★ 5
Beautiful item
Color: Black
Absolutely love this item. It is perfect for my living room decor. It is very well made and stylish. I use it to keep track of my eye glasses.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
N
Verified Purchase
Nancy Jane
Houston, US
★★★★★ 5
Really nice!
Color: Cream
Very attractive and more expensive looking than its cost. I have it in red, too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
J
Verified Purchase
J-Man
Dallas, US
★★★★★ 5
Nice Tray
Color: Black
Nice tray!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
L
L K
Lake Worth, US
★★★★★ 5
Versatile and decent size
Color: Black, Color: Black
I love little trays for random things. I saw this and had to get it. I ordered the black one. It came nicely packaged in a box that protected it from any damage during transport. It is approximately 8” x 8” x 1.6.” It is made of faux leather and MDF. It is supposedly water-resistant, but I have tested that. The interest in smooth, while the exterior walls have vertical ridges. The bottom is smooth. It’s heavy enough so it doesn’t side around. I have used it for numerous things: jewelry, pens and notepads, keys and sunglasses, perfume, medications, change, remotes, and change. It’s a handy and modern piece that could suit most people.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025

recommand products