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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 1540 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chris Griffith
Phoenix, US
★★★★★ 5
Expensive. Have to limit as I have 3 dogs.
Size: 18 Count (Pack of 1)
Dogs love.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 5
Tula's treat
Size: 18 Count (Pack of 1)
She gets one a day and it makes her a very happy girl.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 3
Dog chew
Size: 1 Count (Pack of 6)
Good quality and price dog likes it hut watch for choking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
A
Verified Purchase
Alexia
Lexington, US
★★★★★ 5
Will buy again
Pattern Name: classic
SUCH good quality, stays stuck all day even through sweat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 29, 2025
Y
Verified Purchase
Yami
New York, US
★★★★★ 5
Lasted all night long!
Pattern Name: classic
These were perfectly what I envisioned for the Coldplay concert! I’m a girlie who likes to glam up and these did not disappoint. I was hesitant to see if they would stick or fall off since I would be laying them on top of a full face of make up, but nope not a single problem not even with a little sweat from all the walking and dancing. Plus I love the fact that I had a variety to choose from and they are so much fun. Can’t wait for the upcoming rave to wear again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025

recommand products