Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 7.3 70AR race compressor cover with

70AR race compressor cover with drilled hole surge ring for maximum air flow

Works with OE intercooler

5-02 Dodge Cummins Fuel System Upgrade Kit w/ PowerFlo Lift Pump

2007 GMC Sierra 1500 SLT

2015 Chevrolet Silverado 3500 HD LT

Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 7.3 70AR race compressor cover withIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9L 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 thermostat,