Cummins Coolant Bypass Kit (2003-2007 Manual Transmission) hotshotssecret this System feeds the stock

this System feeds the stock System at 10PSI and is backed by our limited lifetime warranty

The reason our water separator no longer has a drain is because the filter element itself traps the water

the feed pressure to the CP3 should not exceed 2 psi

Connects Auto Agent 3 to Diagnostic Connector

This results in reduced friction

Cummins Coolant Bypass Kit (2003-2007 Manual Transmission) hotshotssecret this System feeds the stockIncreased 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,