Cummins Coolant Bypass Kit 2003-2005 Auto Trans Powerstroke 6.7 This is your daily driver

This is your daily driver / towing turbo

*YOU will be responsible & required for updated calibrations/tuning that may be needed

if CCV mod

Then we replace the plunger and barrel assembly

or cause other issues

Cummins Coolant Bypass Kit 2003-2005 Auto Trans Powerstroke 6.7 This is your daily driverIncreased 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