As a direct replacement for the failure prone OEM thermostat, the Transmission Cooler Thermostat Bypass Plug can drop fluid temperature from 15-50 degrees F by reducing fluid flow restriction to the trans cooler. In the stock application, we've seen the valve fail forcing trans fluid around the cooler in warm weather conditions that cause dangerous fluid temperatures for built and stock transmissions alike. - - Recommended for trucks with stock or built transmissions and performing heavy towing in warm climates to help keep fluid temperatures in check. - - The WCFab Transmission Cooler Thermostat Bypass Plug is a quick and easy install and will work with the following range of GM vehicles equipped with a factory installed transmission cooler thermostat bypass (6L80, 6L90, 8L90): - - 2017-2019 Chevrolet Silverado & GMC Sierra 2500HD/3500HD with 6.6L Duramax Diesel - 2014-2018 Chevrolet Silverado & GMC Sierra 1500 with 4.3L 6 Cyl, 5.3L 8 Cyl, and 6.2L 8 Cyl Gas Engines - 2015-2020 Chevrolet Suburban, Tahoe & GMC Yukon with 5.3L 8 Cyl, and 6.2L 8 Cyl Gas Engines - 2015 Cadillac Escalade with 6.2L 8 Cyl Gas Engine
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015 | Cadillac | Escalade | Base |
| 2015 | Cadillac | Escalade | Luxury |
| 2015 | Cadillac | Escalade | Platinum |
| 2015 | Cadillac | Escalade | Premium |
| 2016-2018 | Chevrolet | Silverado 1500 | Custom |
| 2014-2018 | Chevrolet | Silverado 1500 | High Country |
| 2015-2018 | Chevrolet | Silverado 1500 | LS |
| 2014-2018 | Chevrolet | Silverado 1500 | LT |
| 2014-2018 | Chevrolet | Silverado 1500 | LTZ |
| 2015-2018 | Chevrolet | Silverado 1500 | SSV |
| 2014-2018 | Chevrolet | Silverado 1500 | WT |
| 2017-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2020 | Chevrolet | Suburban | LS |
| 2015-2020 | Chevrolet | Suburban | LT |
| 2015-2016 | Chevrolet | Suburban | LTZ |
| 2017-2020 | Chevrolet | Suburban | Premier |
| 2015-2020 | Chevrolet | Tahoe | LS |
| 2015-2020 | Chevrolet | Tahoe | LT |
| 2015-2016 | Chevrolet | Tahoe | LTZ |
| 2015-2020 | Chevrolet | Tahoe | PPV |
| 2017-2020 | Chevrolet | Tahoe | Premier |
| 2015-2020 | Chevrolet | Tahoe | SSV |
| 2014-2018 | GMC | Sierra 1500 | Base |
| 2014-2018 | GMC | Sierra 1500 | Denali |
| 2014-2018 | GMC | Sierra 1500 | SLE |
| 2014-2018 | GMC | Sierra 1500 | SLT |
| 2017-2019 | GMC | Sierra 2500 HD | Base |
| 2017-2019 | GMC | Sierra 2500 HD | Denali |
| 2017-2019 | GMC | Sierra 2500 HD | SLE |
| 2017-2019 | GMC | Sierra 2500 HD | SLT |
| 2017-2019 | GMC | Sierra 3500 HD | Base |
| 2017-2019 | GMC | Sierra 3500 HD | Denali |
| 2017-2019 | GMC | Sierra 3500 HD | SLE |
| 2017-2019 | GMC | Sierra 3500 HD | SLT |
| 2015-2020 | GMC | Yukon | Denali |
| 2015-2020 | GMC | Yukon | SLE |
| 2015-2020 | GMC | Yukon | SLT |
| 2015-2020 | GMC | Yukon XL | Denali |
| 2015-2020 | GMC | Yukon XL | SLE |
| 2015-2020 | GMC | Yukon XL | SLT |
