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Lightweight Mishimoto 03-09 Dodge Ram 5.9l/6.7l Cummins Transmission Cooler Tool [JK1xhTjN]

$50.99 $163.99 -69%

Mishimoto Model MMTC-RAM-03SLThere'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

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Mishimoto Model MMTC-RAM-03SL

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

What Our Customers Say

December 31, 2025

Absolutely no complaints!

This is a really good product purchase.

- Brandie Q..

December 31, 2025

Absolutely no complaints!

An excellent build, and it feels very solid.

- Zane J..

December 31, 2025

Absolutely no complaints!

A wise purchase that performs very well.

- Sawyer R..

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