Transmission Cooler, compatible with Dodge Ram 5.9L/6.7L Cummins 2003-2009

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US$239.98
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US$239.98
Price when purchased online
Free shipping Free 30-day returns

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Management number 254453512 Release Date 2026/11/07 List Price US$239.98 Model Number 254453512
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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

  • Fits all 2003-2009 Dodge Ram 5.9L and 6.7L Cummins
  • 212-percent Increase in core volume
  • 244-percent Increase in fluid capacity
  • Includes fully serviceable thermostat for fast warm-up in cold climates and thermostat bypass for constant cooling in hot climates
  • Mishimoto Lifetime Warranty
Automotive radiator repair part & hardware type Automatic Transmission Oil Cooler
Vehicle fitment type Specific
Vehicle type Car
Brand Mishimoto
Weight 8.5 lb
Core material Aluminum
Core height 10.94
Core thickness 0.87
Inlet diameter 0.5
Outlet diameter 0.5
Mounting hardware included Y
Pieces 1

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