Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line Duramax LBZ an aftermarket one such as

an aftermarket one such as a Banks Intake Horn must be used

If you have a 2015-2016 model year 6

7 PowerStroke factory with a stainless pipe

you can be sure you are getting the highest quality common rail parts around

000 to $15

Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line Duramax LBZ an aftermarket one such asIncreased 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