Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler - MMOC-RAM-03Find parts that fit my vehicle

Oil is the lifeblood of an engine, and in a hardworking diesel engine like the 2003-2007 Dodge RAM 5.9L Cummins, keeping that oil cool is essential to the engine's health. A clogged or leaking oil cooler can reduce the oil's ability to transfer heat to the coolant, causing thinning and a loss of protection for critical engine components. Mishimoto proudly offers a stock-style replacement oil cooler with new seals. This replacement cooler will restore and improve your engine's oil cooling capabilities and protect it from unnecessary wear. This cooler is a direct fit and provides all the cooling a daily driven 5.9L Cummins needs at an affordable price point. Like all Mishimoto products, this oil cooler is backed by our Mishimoto Lifetime Warranty for a lifetime of worry-free driving

Cooling products are essential components to keeping your vehicle running at optimal temperatures. Whether you are looking for a radiator, fans, or oil coolers, we've got you covered with the top brands like Mishimoto, Koyorad, Skunk2, Moroso, and more!

If you are into performance driving that puts your vehicle's temperatures above normal, you may need to add an oil cooler to your vehicle. By adding an oil cooler to your vehicle, you can keep its oil temperature low, therefore protecting your engine's internals.

Mishimoto, the world leader in performance cooling products, was created for automotive enthusiasts by automotive enthusiasts. Established in 2005, we have more than a decade of experience in working toward our goal of providing superior cooling system upgrades for sport compact, modern muscle, European performance, classics, Jeeps, and trucks.