Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans)

This coolant bypass kit is built for your 2003-2007 Dodge Ram 2500 or 3500 equipped with the 5.9L or 6.7L Cummins engine and a manual transmission. The factory cooling system on these trucks was designed for stock horsepower levels, and when you start adding more power, the engine’s cooling demands increase. This kit helps manage that increased demand by circulating coolant through the entire engine block, not just the top half.

Fleece Performance designed this kit to address the limitations of the stock cooling system. By ensuring coolant reaches all parts of the engine block, it helps prevent hot spots and promotes more even temperature distribution. This is particularly important when you’ve modified your engine for more power, as higher combustion temperatures put more strain on the cooling system. The kit includes all the necessary components to reroute coolant flow, making it a solid option for owners looking to improve their engine's thermal management.

Proper engine temperature is key to longevity and performance, especially with modified Cummins engines. This bypass kit is a well-built solution to help keep your engine running cooler under load.