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

Mishimoto  |  SKU: MISMMTC-RAM-03SL
Sale price $604.95 Regular price $665.00

✅ Rated 4.9 Store ⭐⭐⭐⭐⭐
✅ Same day shipping on most items.
✅ Buy Now Pay Later + Secure Checkouts!


Shipping Speed

We ship faster than Amazon Auto on most products. Yes, we are that fast. Same day shipping on most in stock items. Free Shipping over $399

Delivery & Shipping Cost

We offer great rates, upgraded protection and expedited shipping options. Be sure to check your shipping options at checkout to ensure your package is protected.

Free Shipping over $399, under $399 only $13.99 for the entire cart regardless of amount. Protection is only $14.99 regardless of cart size.

Price Match & Best Price Policy

Do you see a better price elsewhere? Contact us to let us know and we will respond asap. Click here to email us.

Sale pricing ends soon. Dont miss out!

4.9 Rating⭐⭐⭐⭐⭐

10,000+ Customers
SuspensionHouse.com is top rated, trusted store by google, meta, amazon & judge.me

Description

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

Reviews (0)

Got Questions?

Let our team advise you. We are happy to help. Send us an email.

Looking for more parts for your vehicle?

Want to see what else we offer, click here. Vehicle Parts Search

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Sale Price Ends

Dont miss out, sale ends soon!

0
Days
0
Hours
0
Minutes
0
Seconds
Ends September 15, 2025 at 11:59 pm

Your #1 Automotive Shop

From on-road, to off-road, competition, track days, going out on the trails and getting dirty or just taking your vehicle to shows. We carry it all!
We greatly appreciate you visiting our shop today.