Oil is the lifeblood of an engine, and in a hardworking diesel engine like the 2007+ Dodge Ram 5.9L/6.7L Cummins, keeping that oil cool is essential to the engine's health.----The stock 2007+ Dodge Ram 5.9L/6.7L Cummins liquid-to-liquid oil cooler uses engine coolant to draw heat away from the oil and vent it through the engine radiator. It's a stout design that typically performs well for daily driven trucks. However, after up to 16 years of service, many of those stock coolers have seen better days.----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. That's why Mishimoto is proud to offer a stock-style replacement 2007+ Dodge Ram 5.9L/6.7L Cummins oil cooler. This replacement cooler, complete with new seals, will restore and improve your 5.9L or 6.7L Cummins oil cooling and protect your engine from unnecessary wear.----This cooler is a direct fit and provides all the cooling a daily driven 5.9L/6.7L Cummins needs at an affordable price point. Like all Mishimoto Dodge Ram products, this 2007+ Dodge Ram 5.9L/6.7L Cummins stock replacement oil cooler is backed by our Mishimoto Lifetime Warranty for a lifetime of worry-free driving.