Fleece Performance Coolant Bypass Kit With Stainless Steel Line For 98.5-02 5.9L Cummins programmers ideal for heavy towing or

ideal for heavy towing or high-performance street applications up to 550 horsepower and 1100 ft-lbs of torque

+12 HP and +32 lbs

all backed by MagnaFlow’s limited lifetime construction warranty

2006-2007 6

Fleece Performance Coolant Bypass Kit With Stainless Steel Line For 98.5-02 5.9L Cummins programmers ideal for heavy towing orThe 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 thermostat, that unlike other brands, works based on