Why do you need Coolant Bypass?
One of the biggest issues on the 24 valves is the coolant flow problem to the rear cylinders, 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, works based on temperature instead of excessive pressure. This solves the problem before pressure becomes an issue by ensuring consistent temperatures across all six cylinders. Our Coolant Bypass is one of the most important additions you make to improve the reliability and longevity for Cummins platform.
Application:
Compatible with 2003-2007 Dodge Ram Cummins 5.9L (Only Manual Transmission);
Compatible with 2007.5-2018 Dodge Ram 2500-5500 Cummins 6.7L (Manual & Automatic Transmissions).