Cummins Coolant Bypass Kit 2006-2007 Auto Trans VGT Turbos Freedom Series Street heads Include:

Freedom Series Street heads Include:

SKU: 67CAIPD17

100% drop in ready (no modifications required)

Cummins S300-S400 Turbo Installation Kit 2007

Cummins Coolant Bypass Kit 2006-2007 Auto Trans VGT Turbos Freedom Series Street heads Include:Increased 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