Specifics and Features 100% Brand New And High Quality, 100% Factory Tested To Meet Or Exceed All Original Equipment Specifications Professional Installation is Highly Recommended Electric Cooling Fan Clutch: Improved Shaft Design Precision Machining High-load Bearings Water Pump: Metal Impellers(Mostly) Designed, tested and inspected in the U.S. Case Hardened Bearings Notes: It is strongly suggested to replace the Water pump and Fan clutch together. Both share a common shaft and have the same life expectancy. Disconnect positive battery cable before installation .