Allpa 500213 Rotary Water Pump Impeller This Allpa 500213 impeller is an essential component for the water pump of marine engines. The impeller is made from durable rubber with an internal brass bush for a long lifespan and optimal performance. The six-blade design ensures efficient water circulation, guaranteeing coolant flow and preventing overheating. This product is easy to install and suitable as a replacement part for various boat engines. Reliability and quality are central, ensuring your marine engine continues to operate smoothly and safely.