AISIN is the number one original equipment manufacturer of water pumps in the world. AISIN's advanced design produces inverter cooler water pumps with smooth coolant flow channels, efficient rotors, and ball bearings for optimum cooling performance and longevity. Each inverter cooler water pump is crafted from all new, not remanufactured, components that feature upgraded design and materials enhancements to ensure top performance. Inverter cooler water pump construction materials have been carefully selected for their resistance to common water pump killers - rust, corrosion, and coolant scaling. A properly functioning inverter cooler water pump is critical to ensuring longevity of the inverter on Toyota Prius vehicles, preventing overheating and costly repairs. Founded in 1965 to produce original equipment automotive parts, AISIN has grown into a $25+ billion global enterprise with approximately 70,000 employees worldwide. Superior products through engineering excellence, progressive technological development, and dedication to service are some factors which have contributed to bringing AISIN to its position as a multiple-award-winning global leader in automotive parts.