Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line Duramax LBZ 000 to $15

000 to $15

Outflows stock intakes by 140CFM and 450 more cc's of volume

This turbo features a 3

25 Flange Head Cap Screw

We would recommend a regulated fuel return along with a fuel pump upgrade

Cummins Coolant Bypass Kit 06-07 Auto Trans with Stainless Steel Braided Line Duramax LBZ 000 to $15Increased 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