Shopping Cart

Your cart is empty.

Your cart is empty.

2 Pcs Transmission Cooler Thermostat Bypass Plug Barbell Compatible with GMC Cadillac Chevrolet with 6l80/90 8l90 2014-2020, Fit for 86774933 Thermal Bypass Valve (Double O-Ring)

Free shipping on orders over $29.99

$29.99

$ 13 .99 $13.99

In Stock

1.Color:Silver | 1pcs Double O-ring


  • Improved Transmission Cooling Performance: This transmission cooler thermostat bypass plug is mainly combined with the transmission cooler bypass valve to ensure that the transmission cooling system can work properly, effectively reduce the temperature of the transmission during operation, extend the service life of the transmission
  • Upgraded Double Seal: Our cooler bypass plugs are made of high quality aluminium alloy and have been upgraded with double seals for greater sealing to ensure excellent corrosion resistance and operational stability
  • Easy Installation: The plug is plug-and-play, make it easy to plug into the bypass valve and improve transmission cooling without the need for professional tools. Before installation, appropriate amount of transmission fluid can be applied on the O-ring to complete the installation of the bypass plug better and faster
  • Precise Specifications: Our cooler thermostat bypass plug is manufactured to oem standards to ensure precise and seamless connection between the plug and the cooling bypass valve to ensure the stability of the transmission cooling system.
  • Wide Compatibility: This cooler thermostat barbell is compatible with GM's GMC, Chevrolet, Cadillac and other models equipped with 6l80 6l90 8l90 transmission. Check the transmission model before purchase to ensure that you can install this bypass plug smoothly and enhance the cooling performance of the transmission



Product Description

Atesilor Transmission Cooler Thermostat Bypass Plug Family

Transmission Cooler Thermostat Bypass Plug
Upgraded double seal ring
Compatible with GMC Cadillac Chevrolet with 6L80/90 8L90 2014-2020

Customer
Reviewed in the United States on May 9, 2025
works great
Mike Bucher
Reviewed in the United States on May 19, 2025
Very good china orings are not great but after replacing them with good ones this is a quality part
T C
Reviewed in the United States on February 8, 2025
Fits and seems to work on my 2018 GMC Sierra transmission by pass. Well made with an additional o-ring seal on the small end. Easy to install.
Recommended Products

$39.99

$ 19 .99 $19.99

5.0
Select Option

$37.82

$ 16 .99 $16.99

5.0
Select Option