05/17/2026
Third Gen 5.9 owners, make sure you have our transmission cooler thermostat delete kits!
Don’t chance it in the hot weather with the troublesome stock thermostat. Our kit completely eliminates the thermostat, directing all fluid flow through the cooling core of the cooler.
In stock and shipping daily!
The 3rd Gen Dodge transmission coolers are notorious for having the transmission cooler thermostat stick in the "bypassed" position, causing high operating temperatures. Our thermostat delete kit is a simple drop-in kit that completely seals off the bypass tube.
