Mishimoto is a leading manufacturer of high-performance cooling solutions, specializing in radiators, intercoolers, oil coolers, and silicone hose kits designed for maximum efficiency and durability. Headquartered in the USA, with manufacturing facilities worldwide, Mishimoto combines cutting-edge engineering with rigorous testing to deliver top-tier cooling products for street, off-road, and track applications. Built to withstand extreme conditions, Mishimoto's products help maintain optimal engine temperatures, ensuring peak performance and longevity. Trusted by automotive enthusiasts, racers, and professional teams, Mishimoto continues to set the standard for innovation, reliability, and performance-driven cooling solutions.
There's no greater enemy for a transmission than heat. Whether your 2003-2009 Dodge Ram 5.9L / 6.7L Cummins is a dedicated tow vehicle, hardworking fleet truck, or a daily driver, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2003-2009 Dodge Ram 5.9L / 6.7L Cummins transmission cooler utilizes a stacked plate core for durable and powerful cooling. With a massive 212-percent greater core volume, 244-percent increase in fluid capacity, this trans cooler is a huge improvement over stock 2003-2009 Dodge Ram 5.9L / 6.7L Cummins transmission cooler. The Mishimoto transmission cooler is not only larger than the stock cooler, but more reliable too. When the stock cooler's thermostat fails, it fails closed, bypassing the cooler and returning hot fluid to the transmission. Mishimoto has solved this common issue by making the thermostat in our 2003-2009 Dodge Ram Cummins transmission cooler fully serviceable and easily bypassed for constant cooling. A port located at the top of the cooler provides easy access to the thermostat for servicing in just a few minutes. Replacement thermostats can be purchased individually if needed
This Part Fits:
Fitment Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009.
There's no greater enemy for a transmission than heat. Whether your 2003-2009 Dodge Ram 5.9L / 6.7L Cummins is a dedicated tow vehicle, hardworking fleet truck, or a daily driver, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2003-2009 Dodge Ram 5.9L / 6.7L Cummins transmission cooler utilizes a stacked plate core for durable and powerful cooling. With a massive 212-percent greater core volume, 244-percent increase in fluid capacity, this trans cooler is a huge improvement over stock 2003-2009 Dodge Ram 5.9L / 6.7L Cummins transmission cooler. The Mishimoto transmission cooler is not only larger than the stock cooler, but more reliable too. When the stock cooler's thermostat fails, it fails closed, bypassing the cooler and returning hot fluid to the transmission. Mishimoto has solved this common issue by making the thermostat in our 2003-2009 Dodge Ram Cummins transmission cooler fully serviceable and easily bypassed for constant cooling. A port located at the top of the cooler provides easy access to the thermostat for servicing in just a few minutes. Replacement thermostats can be purchased individually if needed
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003,2005-2009 | Dodge | Ram 2500 | Laramie |
| 2006-2009 | Dodge | Ram 2500 | Power Wagon |
| 2003-2009 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2003-2009 | Dodge | Ram 2500 | ST |
| 2008-2009 | Dodge | Ram 2500 | SXT |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 2003-2009 | Dodge | Ram 3500 | Laramie |
| 2003-2009 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2003-2009 | Dodge | Ram 3500 | ST |
| 2008-2009 | Dodge | Ram 3500 | SXT |
| 2007 | Dodge | Ram 3500 | TRX4 |
Fitment Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009.
- Category:
- Cooling>Transmission Coolers
- Core:
- N
- Core Price:
- 0
- LTL:
- N
- MPN:
- MMTC-RAM-03SL
- Proposition 65:
- N
