Cummins Coolant Bypass Kit 2003-2005 Auto Trans Powerstroke 6.7 -Max Pressure – 400 psi

-Max Pressure – 400 psi

**Powder coat options have a 1-2 week lead time

Also available are custom very large injectors and high pressure pumps to support 3

Then we replace the plunger and barrel assembly

Easy Plug and Play Installation

Cummins Coolant Bypass Kit 2003-2005 Auto Trans Powerstroke 6.7 -Max Pressure – 400 psiIncreased 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