Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line Fleece Performance CHEV Engineered to maintain OEM vehicle

Engineered to maintain OEM vehicle fitment and performance specifications

no tuning required kit for the 2011-2016 LML Duramax platform

fabricated lift blocks that are stronger and offer a longer lifespan than cast blocks

non-oiled synthetic air filter requires no re-oiling after cleaning for maximum convenience

Built with Bosch OE components

Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line Fleece Performance CHEV Engineered to maintain OEM vehicleIncreased 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