6L80-CLR-BYPASS Cooler Flow Bypass Delete Kit

The TransGo 6L80-CLR-BYPASS is an easy, cost-effective drop-in kit for General Motors 6L80, 6L90, 8L90, and Allison transmissions. By eliminating the stock thermostatic assembly, it effectively prevents overheating and helps to lower overall transmission fluid temperature, contributing to improved longevity and performance. A key benefit of this kit is the ability to accurately check the transmission fluid level immediately after installation. Typically, checking the fluid level requires a warm-up cycle due to the thermostatic valve, but this kit removes that dependency, simplifying maintenance. The kit includes all necessary components for installation: a cooler bypass plug with its own O-ring, a pin, a replacement O-ring for the end cover, and a spacer. This TransGo Cooler Flow Bypass Delete Kit is specifically designed to fit 2014-on 6L80 and 6L90 transmissions, 2015-on 8L90 transmissions, and 2017-19 Allison transmissions. Installation instructions are provided in English to guide users through the process.