Fleece Performance VP Coolant Bypass Kit 1998.5-2002Increased Coolant Flow, Decreased Coolant Temperatures. The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and...
Fleece Performance For Cummins Coolant Bypass Kit 2003-2005 Auto Trans
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For Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to...