Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line Late Black Silicone Hose

Black Silicone Hose

is at it again with a much-improved second generation kit

It comes with a Fleece Performance 63mm FMW compressor wheel and 66mm high flow turbine wheel

Aftermarket Capable: Want the benefits of the in-tank pump but need to run your own fuel lines or aftermarket filters

For Mod Turbo with 5 Inch Inlet

Cummins Coolant Bypass Kit 003-05 Auto Trans with Stainless Steel Braided Line Late Black Silicone HoseIncreased 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