Feature:1. Perfect Fitment: Water pump impeller is replacement for Johnson Evinrude 2 stroke 2hp, 3hp, 4hp outboard motors, perfect matching.2. Replace Part Number: The OEM number is 433935, 433915, 396852, 767407, 500332, and the part number is 183015.3. High Quality Materials: Impeller is made of high quality copper and rubber materials, wear resistant, high strength, sturdy and durable.4. Excellent Performance: Professional manufacturing, exquisite workmanship, high efficiency, stable performance and high reliability.5. Application: Impeller is used for marine water pumping such as engine cooling, water transfer, wash down and bilge water pumping purposes.Specification:Item Type: Water Pump ImpellerMaterial: Copper+RubberReplace OEM: 433935, 433915, 396852, 767407, 500332,Replace: 18-3015Number of Blades: 3High Degree of Impeller: Approx. 17mm/0.67inImpeller Outer Diameter: Approx. 34mm/1.34inInsert Diameter of Inner Axis: Approx. 11mm/0.43inFitment: Replacement for Johnson Evinrude 2 stroke 2hp 3hp 4hp(Ultra Excel 1987-2006) outboard motors;Replacement for Johnson 2-stroke outboard motors: J2 J3 J4;Replacement for Evinrude 2 stroke outboard motors: E3 E4..Package List:1 xWater Pump Impeller.