Description
45RFE / 545RFE / 68RFE / 722.6 Thermal Bypass Eliminator Kit, Sonnax 72760-02K.
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.
- Drop-in Zip Valve parts install quickly and easily into OE cooler bypass valve
- Maintains the OE functionality of pressure relief to prevent transmission failure due to high pressure or cooler blockage
- Less expensive solution than replacing the OE cooler bypass valve
-
For use in OE part numbers 55111005AC and 68192000AA
Symptoms:
- Overheating
- Overheated fluid
Correction:
Removing the OE thermal bypass valve and replacing with drop-in Sonnax thermal bypass eliminator kit ensures fluid always circulates through the cooler and keeps temps down. This maintains the pressure bypass to protect the transmission in the event of cooler blockage.
- Eliminator Valve
- Spring
- Checkball
- Checkball Seat
- Retaining Ring
- O-Ring
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