Cummins Coolant Bypass Kit VP 98.5-02 with Stainless Steel Braided Line 4500 Cummins 4BT with P-Pump New

Cummins 4BT with P-Pump New Injector Set: MPG increase

S&B Body Mounts offer great vibration isolation and will not crack or breakdown like the OEM foam or rubber bushings

Engine: LML Duramax

factory fuel heater

Control your torque converter from the palm of your hand with the AlliLocker from Fleece Performance Engineering

Cummins Coolant Bypass Kit VP 98.5-02 with Stainless Steel Braided Line 4500 Cummins 4BT with P-Pump NewIncreased 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