Compatibility: The water pump impeller replaces for Johnson Evinrude 2-stroke 2hp, 3hp, 4hp outboard motors, perfect match. The OEM number is 433935, 433915, 396852, 767407, 500332 and the part number is 18-3015. Please check the model before ordering to make sure it is the correct part. Durable Material: The water pump impeller is made of high quality copper and neoprene material, rust-proof, heat-resistant and wear-resistant. High-quality materials are used to ensure long-term durability, stable performance and high reliability. Usage: The water pump impeller is driven by the outboard motor to rotate, so that a vacuum is generated in the middle of the impeller, the water flows into the vacuum, and then the water will be discharged through the rotating impeller at high speed. The water pump impeller is used for pumping seawater, such as engine cooling, water transfer, washing, bilge pumping and other purposes, for freshwater or seawater work. Good performance: The flexible 3-blade