Monthly Archives: September 2024

An image of a GMC Sierra 1500 with its hood open in a garage.

Frosty Freight – Transmission Cooler for 2019+ Chevy Silverado and GMC Sierra 1500

September 25, 2024

Josh Wayman

For truck enthusiasts and professionals alike, ensuring continued performance is crucial. One of the most prominent threats to a truck’s performance is heat—especially when it comes to the transmission. An overheating transmission can cause serious damage, particularly when the truck is working hard while towing or off-roading. That’s why we’ve been hard at work developing our Transmission Cooler for the 2019+ Chevrolet Silverado and GMC Sierra 1500.

Mitch, our engineer, set out to design a transmission cooler that would outperform stock. He opted for a tube-and-fin core design, which is less prone to develop air pockets as fluid moves through the system and more resistant to pressure drops. Mitch’s direct-fit design was drastically larger than its stock counterpart, boasting these improvements over stock:

The stock transmission cooler next to a test-fitment Mishimoto prototype.

Type of Increase	Increase Percentage
Core Volume	266%
Frontal Area	83%
Internal Tube Area	339%
External Tube

An image of a Ford F250 Super-Duty with the grille removed and a Mishimoto transmission cooler installed in front of the radiator.

Hard Lines, Hard Work – Transmission Cooler for the 2020-2022 Ford 6.7L Powerstroke

September 20, 2024

F-Series Super Duty, 6.7L Powerstroke

Josh Wayman

With 475 horsepower and 1,050 ft-lbs routed through a 10-speed 10R140 TorqShift transmission, the 2020-2022 Ford 6.7L Powerstroke was designed for serious towing. With big power comes lots of heat, and this is especially true when hauling heavy loads or towing uphill. As impressive as this truck is, heat is the enemy of any transmission, and as temperatures rise, so do problems.

The stock transmission cooler does a decent job of cooling, but if you’re looking to push this truck to the limit, decent won’t do. That’s why we’ve been hard at work developing the Mishimoto Transmission Cooler for the 2020-2022 Ford 6.7L Powerstroke—the first of its kind on the market.

Stock Evaluation

The engine bay of a Ford F-250 Super Duty 6.7L Powerstroke with the hood open. Just out of frame there is a blue Ford Mustang to the left and black Ford Mustang GT to the right.

The stock transmission cooler uses a liquid-to-liquid design. This works by transferring heat from the transmission to the engine coolant. This style of transmission cooler is becoming more commonly equipped by OEMs due to their compact size, but there are pros and cons.

Typically, liquid-to-liquid transmission