Mishimoto Transmission Cooler Thermal Bypass Kit 19-26 Ram 6.7L Cummins
- The full-flow valve eliminates the thermostat entirely, allowing transmission fluid to circulate through the cooler at all times, making it the ideal choice for hot climates, heavy towing, and high performance applications.
- If you’re looking for a more controlled approach or operate in a consistently cold climate, the upgraded high flow thermostat valve features a replaceable thermostat that’s far more durable than stock and opens 10°F earlier, allowing fluid to reach the cooler sooner without overcooling. This option also includes a bypass insert, so you can easily switch between thermostat controlled and full-flow modes with just a wrench.
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Shipping & Returns
Shipping & Returns



Mishimoto Transmission Cooler Thermal Bypass Kit 19-26 Ram 6.7L Cummins
Mishimoto Transmission Cooler Thermal Bypass Kit 19-26 Ram 6.7L Cummins
- The full-flow valve eliminates the thermostat entirely, allowing transmission fluid to circulate through the cooler at all times, making it the ideal choice for hot climates, heavy towing, and high performance applications.
- If you’re looking for a more controlled approach or operate in a consistently cold climate, the upgraded high flow thermostat valve features a replaceable thermostat that’s far more durable than stock and opens 10°F earlier, allowing fluid to reach the cooler sooner without overcooling. This option also includes a bypass insert, so you can easily switch between thermostat controlled and full-flow modes with just a wrench.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
- The full-flow valve eliminates the thermostat entirely, allowing transmission fluid to circulate through the cooler at all times, making it the ideal choice for hot climates, heavy towing, and high performance applications.
- If you’re looking for a more controlled approach or operate in a consistently cold climate, the upgraded high flow thermostat valve features a replaceable thermostat that’s far more durable than stock and opens 10°F earlier, allowing fluid to reach the cooler sooner without overcooling. This option also includes a bypass insert, so you can easily switch between thermostat controlled and full-flow modes with just a wrench.

















