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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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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david hagar
Omaha, US
★★★★★ 5
Buff and stuff
Size: 2.67 Ounce (Pack of 12)
Works well for buffing. Don’t recommend drinking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
R
Verified Purchase
Robert Scott Lane
Massapequa, US
★★★★★ 5
Works
Size: 2.67 Ounce (Pack of 12)
Very pleased with product. Seals and holds very well with rubber repairs.
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Reviewed in the United States on October 14, 2025
D
Verified Purchase
Dean W.
San Leandro, US
★★★★★ 4
Works
Size: 2.67 Ounce (Pack of 12)
Works
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Reviewed in the United States on November 30, 2025
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Chris C is only me
Draper, US
★★★★★ 5
What you don’t see can hurt you
Size: 2.67 Ounce (Pack of 12)
Don’t skip this
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Reviewed in the United States on November 19, 2025
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Pinhead Larry
Lexington, US
★★★★★ 5
Great patches for punctures and the proper way to repair a tyre.
Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch, Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch
Why go to a tire repair shop and spend a fortune when you can do it yourself. However most people don't want to be bothered but for us do it yourselfers this patch set was great. Comes with various patches all in different sizes. If you're not familiar with fixing a tire it's really easy and honestly a scam getting it done. Fun fact the gray glue on the bottom is actually activated when you drive heating up the patch and vulcanizing it to the tire but it doesn't hurt to actually use some rubber cement to seal around the patch to prevent future leaks. I ended up having to use these on one of my motorcycle tires when I ran over a pallet staple, for me the biggest patchwork and once testing and rebeating the tire there was no leakage. Good price for the amount you receive and cost less to repair it yourself than taking it to a shop
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Reviewed in the United States on September 20, 2025

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