February 03, 2022
The OE thermal bypass valve in listed transmissions is known to get stuck in recirculation mode, only allowing ATF to circulate in the transmission and not allowing flow through the cooler. As the vehicle gets up to operating temperature, this can result in transmission overheat. Sonnax thermal bypass eliminator kit 72760-02K allows reuse of the OE cooler bypass valve by removing the OE thermal bypass valve and replacing it with a valve assembly that permanently allows flow through the cooler to prevent transmission overheat. The Sonnax design includes a pressure bypass feature that allows for bypass if the cooler is blocked, also preventing transmission failure.
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.