
Key Features & Specs:
Fitment:
Improve cooling-system reliability on your 1998.5-2002 Dodge Ram 2500 or 3500 5.9L VP Cummins with the Fleece Performance Coolant Bypass Kit. Part FPE-CLNTBYPS-CUMMINS-VP adds a secondary temperature-actuated thermostat to improve coolant circulation at the rear cylinders, where coolant temperatures can be highest. By helping equalize coolant temperatures across all six cylinders, this bypass kit helps reduce excessive cooling-system pressure and supports long-term engine reliability.