Compatible with:Heavy Duty Pressurized Coolant Reservoir fit for International 5900 2003-2009,International 9900i 2003-2018 ,International ProStar 2007-2020 Replace OE 603-5105
Primary Function:Radiator overflow tank allows for the expansion and contraction of coolant as the engine temperature fluctuates,ensuring that the cooling system remains properly pressurized and filled with coolant.
High-quality:The radiator reservoir tank is made from High-grade flame retardant nylon materials can withstand excessive heat and vibration.Helping to reduce oil dilution, cylinder bore wear, fuel consumption, exhaust emission, and improving efficiency of the heating system.
Direct Replacement:①Secure the coolant reservoir to the engine bay using screws;②Connect hoses to the appropriate locations on the radiator;③Filling with coolant;④Engine reaches operating temperature,squeeze the upper radiator hose to help release air.
After-sales:Include 1 piece coolant tank.we provide 1 year warranty service, if you are encounter product installation, product quality and other problems, please feel free contact us.