Cummins Coolant Bypass Kit 2006-2007 Auto Trans Premium Fuel Injectors *Injectors are covered under warranty

*Injectors are covered under warranty only if proper fuel mods have been installed

You know the history and mileage of these injectors

The stage 3 turbo is a MONSTER and will run great on the dyno and the track

Kits for MY 2003+ include billet hose brackets

5 inch Work Stock Legal

Cummins Coolant Bypass Kit 2006-2007 Auto Trans Premium Fuel Injectors *Injectors are covered under warrantyIncreased Coolant Flow, Decreased Coolant Temperatures The 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