Wehrli 17-19 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug LP6 Pro The unique patented suction cups

The unique patented suction cups aid in installation to secure the placement of the SunShade

This tune package fits:

tap 3/8-24 threads with the included tap

Replaces in seconds

Wehrli 17-19 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug LP6 Pro The unique patented suction cupsWehrli Model WCF100469 Wehrli 17 19 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug 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