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The Mishimoto replacement oil cooler restores oil cooling for 2003–2007 Dodge Ram 5.9L Cummins engines. A direct-fit stock-style unit supplied with new seals and all gaskets replaces clogged or leaking coolers to renew oil-to-coolant heat transfer and protect engine components. It meets OEM expectations, offers reliable daily-driving cooling, and is backed by the Mishimoto Lifetime Warranty.
Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Oil Cooler
