Review on ATS Thermal Bypass 2010 2018 Cummins by Jerry Mangum

Pulling our loaded fifth wheel and boat together we ended up with about 20,000 pounds including the truck. In standard form, the transmission operates between 170 and 185 degrees Fahrenheit on the freeway and near 195 degrees Fahrenheit when stopped and driving. Installed the ATS thermal bypass removal and the transmission now runs at 130 to 160 degrees Fahrenheit on the freeway and never went above 175 in stop and go traffic. I believe the factory thermal bypass should open at around 170 degrees Fahrenheit. If you want to protect your 68RFE from overheating, which is the best method of killing your automatic transmission, you should definitely install this product. It also came with an aluminum screw on the filter upgrade which I also installed. Very happy with the handling of both parts and would buy again without question.