
- Fits all 1994–2002 Dodge Ram 5.9L Cummins*
- 116% Increase in core volume
- 141% Increase in fluid capacity
- 134% Increase in fin surface area
- Tube-and-fin design for tough and reliable cooling
- Eliminates corrosion-prone quick-disconnect fittings
- Patent #D905,115
- Mishimoto Lifetime Warranty

There’s no greater enemy for a transmission than heat. Whether your 1994–2002 Dodge Ram 5.9L Cummins is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.
Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 1994–2002 Dodge Ram 5.9L Cummins transmission cooler utilizes a tube-and-fin core for reliable and powerful cooling. The Mishimoto transmission cooler boasts a 116% greater core volume, 141% increase in fluid capacity, and 134% greater fin surface area than the stock 1994–2002 Dodge Ram 5.9L Cummins transmission cooler.
If you've ever removed the stock transmission cooler from a 2nd Gen Ram, you probably know that the quick-disconnect fittings are usually not quick anymore. To save you the hassle of removing seized fittings, Mishimoto provides two CNC-machined, stainless steel hose barb fittings so you can cut to the chase, literally. These fittings and the supplied transmission fluid hose allow you to remove the quick-disconnect fittings and connect the stock soft-line to the Mishimoto cooler.
Like al[...]
- Fits all 1994–2002 Dodge Ram 5.9L Cummins*
- 116% Increase in core volume
- 141% Increase in fluid capacity
- 134% Increase in fin surface area
- Tube-and-fin design for tough and reliable cooling
- Eliminates corrosion-prone quick-disconnect fittings
- Patent #D905,115
- Mishimoto Lifetime Warranty