CARDONE Select Engineered (CSE) Technology ensures that all CARDONE Select Water Pumps meet or exceed O.E. form, fit and function. 100% computer tested for maximum performance and durability. O.E.-supplied NEW unitized seals ensure long-lasting, trouble-free performance. Every unit is supplied with a premium quality mounting gasket for a guaranteed, leak-proof seal on all mounting surfaces. Original casting specifications are strictly followed to ensure proper fit for easy installation and proper water flow for maximum cooling. Bearings made of heat-treated carbon or carburized steel are sealed and lubricated to ensure smooth performance throughout unit life. Applications demanding high off-set loads are upgraded to a Ball/Roller bearing to ensure long-lasting reliable performance. Hubs and impellers are precisely perpendicular to the bearing shaft to eliminate excessive bearing load and noise.