Fleece Performance 03-07 Dodge 5.9L Cummins Coolant Bypass Kit (03-05 Auto Trans) T-shirts 1971-1972 Oldsmobile Cutlass S 1968-1972

1971-1972 Oldsmobile Cutlass S 1968-1972 Oldsmobile Cutlass Supreme Base

Does Not Fit 3500 Series Or Stepside Models

2011-2018 Ram 2500 98

including two air springs

Year Make Model Submodel 1979-1981

Fleece Performance 03-07 Dodge 5.9L Cummins Coolant Bypass Kit (03-05 Auto Trans) T-shirts 1971-1972 Oldsmobile Cutlass S 1968-1972Another product from Fleece Performance built out of necessity is the 2003 2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300 350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the system,