
Key Features & Specs:
Fitment:
Improve cooling-system reliability on your 2003-2005 Dodge Ram 2500 or 3500 5.9L Cummins automatic with the Fleece Performance Coolant Bypass Kit. Part FPE-CLNTBYPS-CUMMINS-0305-SS uses a temperature-actuated secondary thermostat to increase coolant flow at the rear cylinders, helping maintain more consistent temperatures across all six cylinders. This automatic-transmission-specific kit features a stainless steel braided bypass line and eliminates the factory transmission-fluid heat exchanger for a clean, high-performance installation.