Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 7.3 Each CNC machined tip is

Each CNC machined tip is made from 86L20 bar stock that is core hardened and triple tempered for wear and impact resistance

2012 Chevrolet Tahoe PPV

and fueling upgrades

Constructed of mandrel bent

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

Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 7.3 Each CNC machined tip isIncreased 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,