This key for a water pump shaft secures the connection between shaft and pump in a passenger car cooling system. The part suits a classic model with specific dimensions and shape. The key transfers force between drive and water pump and helps maintain stable rotation of the shaft. The product supports correct alignment of components and limits slip. The material is matched to the load conditions in an engine bay. The part fits into an existing slot in the shaft and pump hub. Use takes place during service or overhaul of the complete water pump assembly in the vehicle.

