Review on Enhanced Thermostatic Bypass Upgrade for 2013-2018 Dodge Ram 6.7L Cummins Diesel 68RFE Transmission Cooler by Revmax by Blake Giordano

Great security as there is no thermostat to protect the gearbox from seizing and overheating. There are no problems here, towing and driving from -10 to 90 degrees. Trance stays cooler in every way. happy with it. No, hypothermia is never a problem. If you are undecided about this update. Just do it. Not all '68s came with it (until 2013). This was an attempt to improve fuel economy with a warmer/more fluid fluid. Guess what? It does not matter. It only makes the trance hotter. Change it and don't look back. You will not regret it. Just keep a glass box under your truck known as the 68RFE.