Mishimoto Transmission Thermal Bypass Valve Kit 17-19 GM 6.6L Duramax L5P Select Bypass Kit:Black Bypass Kit With Thermostat Brushed aluminum finish with an

Brushed aluminum finish with an aFe POWER logo painted on the front

2011-2015 model years have the A50 transmission

blasting down some gnarly trails

5" diameter shock

Mishimoto Transmission Thermal Bypass Valve Kit 17-19 GM 6.6L Duramax L5P Select Bypass Kit:Black Bypass Kit With Thermostat Brushed aluminum finish with anAre you wanting the best performance out of your Transmission? The Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock