GMB 170-4000 OE Replacement Water Pump with Gasket Factory sealed, precision ground, one piece bearing assembly High-flow design for long-lasting, efficient cooling Designed for Original Equipment (OE) fit and performance Precision-ground shaft and hub accept OE fan clutches perfectly Unique no-sealant required gasket makes installation fast, easy and leak-free Factory sealed, precision ground, one piece bearing assembly High-flow design for long-lasting, efficient cooling Designed for OE fit and performance Precision-ground shaft and hub accept OE fan clutches perfectly Unique no-sealant required, gasket makes installation fast, easy and leak-free