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return line assembly
The built-in air intake scoop captures cold air directly from the top of the radiator support thanks to its huge opening
The Cognito coil springs are dual rate
A urethane plug is also included if you wish to block off the auxiliary air inlet
Mishimoto Replacement Oil Cooler For 1989-2002 Dodge Ram 2500/3500 5.9L Cummins POLARIS return line assemblyOil is the lifeblood of an engine, and in a hardworking diesel engine like the 1989 2002 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 direct fit oil cooler. This replacement cooler, complete with