Dodge Ram 3500 1998 5.9L 359Cu. Dodge Ram 2500 1998 5.9L 359Cu. The Coolant Bypass Kit is a must have on any 1994-1998 Dodge 5.9L Cummins engine. When horsepower is increased there is also an increased demand on the cooling system.
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For 2003-2007 Dodge Ram 5.9L 2007.5-2018 Cummins 6.7L Freeze Coolant Bypass Kit