Cummins Coolant Bypass Kit 2006-2007 Auto Trans Fleece Performance S&M increasing horsepower

increasing horsepower

Park-By-Wire (Fold-Away Shifter) compatibility

making a lasting impression wherever you go

Part Number: 247-6303

Emissions Disclaimer:

Cummins Coolant Bypass Kit 2006-2007 Auto Trans Fleece Performance S&M increasing horsepowerIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary