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  • Direct fit for 2003–2009 Dodge Ram 5.9L/6.7L Cummins
  • Includes Mishimoto aluminum radiator, transmission cooler, and silicone coolant hose kit
  • Mishimoto radiator provides increased fluid capacity for optimal heat dissipation
  • Transmission cooler increases core volume by 212% and fluid capacity by 244% over stock
  • Transmission cooler includes fully serviceable thermostat for fast warmup in cold climates and thermostat bypass for constant cooling in hot climates
  • Hoses are constructed from high-grade silicone with heat-resistant embedded fibers for superior heat and pressure tolerance
  • Mishimoto Lifetime Warranty


If your 2003–2009 Dodge Ram 5.9L/6.7L Cummins is lacking in the cooling department, Mishimoto has the solution. Our essentials bundle is a great start to getting the most out of your 3rd Gen Ram. Included in this bundle is our Mishimoto aluminum radiator, performance transmission cooler, and silicone radiator hose kit.

Our all–aluminum radiator is constructed from durable, TIG-welded end tanks to make it strong enough to withstand anything the road or the jobsite can throw at it. Our two-row core ensures efficient cooling for stock or modified trucks, while still fitting like stock. The included 1.3 bar high-pressure radiator cap and magnetic drain plug make sure coolant stays clean and where it belongs. To bridge the gap between the engine and the radiator, we’ve also included our silicone radiator hoses. These hoses are constructed from four layers of silicone and heat resistant fibers for greater heat and pressure tolerance. Just like the radiator, these hoses fit like stock without any trimming.

While our radiator and coolant hoses keep your engine cool, our performance transmission cooler does the same for your transmission. This transmission cooler gives your Ram a 212% increase in core volume and 244% increase in fluid capacity over stock for maximum cooling. The fully serviceable thermostat with included bypass means that whether you live in a cold or hot environment, you never have to worry about a stuck thermostat ever again.

Like all of our Dodge Ram Cummins parts, this 2003–2009 Dodge Ram Cummins Essentials bundle is protected by our Mishimoto Lifetime Warranty.


(1) Mishimoto Radiator
(1) Mishimoto Stacked-Plate Transmission Cooler
(2) Silicone Hoses
(2) High-Pressure Transmission Cooler Lines
(1) Removable Thermostat
(1) Removable Thermostat Bypass
(2) CNC-Machined Stainless Steel Barbed Fittings
(2) CNC-Machined Aluminum 3/4"-16 ORB to Hose Barb Fittings
(6) Worm Gear Clamps
(1) Mishimoto Radiator Cap
(1) Mishimoto Magnetic Drain Plug
Mishimoto Lifetime Warranty


Note* This kit requires cutting of the stock transmission cooler lines to remove the quick-disconnect fittings. Mishimoto provides CNC-machined stainless steel hose barb fittings to splice the supplied transmission cooler line with the stock soft-lines. Please see installation instructions for more details.



Fits 2003–2007 Dodge Ram 2500 w/ 5.9L Cummins Engine
2003–2007 Dodge Ram 3500 w/ 5.9L Cummins Engine
2007.5–2009 Dodge Ram 2500 w/ 6.7L Cummins Engine
2007.5–2009 Dodge Ram 3500 w/ 6.7L Cummins Engine
2007–2009 Dodge Chassis Cab w/ 6.7L Cummins Engine



Mishimoto Automotive (“Mishimoto”) warrants their products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorised dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.

Mishimoto Lifetime Warranty on ALL Products
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