Mishimoto Transmission Cooler 03-09 Ram 5.9L / 6.7L Cummins
SKU: 96416878267

Mishimoto Transmission Cooler 03-09 Ram 5.9L / 6.7L Cummins

Sale price$269.98 Regular price$299.98
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  • USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Mishimoto Transmission Cooler 03-09 Ram 5.9L / 6.7L CumminsYour Cummins powered Ram is a beast, and you dont want to kill its transmission by letting heat cause premature transmission failure. Whether your Dodge Ram 5. 9L 6. 7L 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. The 2003 2009 Dodge Ram 5. 9L 6. 7L

Your Cummins powered Ram is a beast, and you don’t want to kill it’s transmission by letting heat cause premature transmission failure. Whether your Dodge Ram 5.9L/6.7L 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. The 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% greater core volume and 244% increase in fluid capacity, this trans cooler is a huge improvement over stock 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 with a 5.9L or 6.7L 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; no more replacing the entire cooler if the thermostat fails. Owners in cold climates can still enjoy the fast warmup times that the thermostat provides, while owners in hot climates can choose to bypass the thermostat by replacing it with the supplied stainless-steel bypass plug.

To make this cooler even easier to install and service, Mishimoto saves you the hassle of removing seized fittings. The provided CNC-machined, stainless steel hose barb fittings let you cut to the chase, literally. These fittings and the supplied transmission cooler hose allow you to remove the quick-disconnect fittings and connect the stock soft-line to the Mishimoto cooler.

Like all Mishimoto products, this transmission cooler is backed up by Mishimoto’s Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 96416878267

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TT
Phoenix, US
★★★★★ 5
Quality and cost.
Size: XX-Large, Color: Lake Blue
Perfect transaction.
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Reviewed in the United States on April 16, 2025
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Jacquelin Scott
Fort Morgan, US
★★★★★ 5
The suit is definitely as pictured.
Size: Large, Color: Champagne
Beautiful Suit, ordered a large for my son he's 5'7 about 175 but he has a belly, the pant does has extra extension in the waist but my son couldn't fit the pant, overall this is a Nice suit loved jacket .
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Reviewed in the United States on March 17, 2026
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Trikia j
Waukegan, US
★★★★★ 5
Good Quality
Size: Large, Color: Hunt Green, Size: Large, Color: Hunt Green
The suit came fast I love the color its actually looks like the picture my husband 205lbs I got him a large we just had to adjust the belt on jacket but it fit just right the quality is good just like if you went to men's suite store but at cheaper rate got so many compliments doest come with chain had to order
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Reviewed in the United States on February 27, 2026
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Alan C Spates
Carnegie, US
★★★★★ 5
Good fit
Size: XX-Large, Color: Champagne
Fit was nice. Pants were a tad bit snug, but the elastic waistline made them doable. Jacket was a perfect fit, just wish I could have pick my waist size..
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Reviewed in the United States on May 4, 2026
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Joyce
Battle Creek, US
★★★★★ 5
Great suit
Size: X-Small, Color: Beige
I really like this suit for my son. Great material. I used the size calculator and it worked perfectly.
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Reviewed in the United States on March 23, 2026

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