Feature:1. Perfect Fitment: Water pump impeller is replacement f Johnson Evinrude 2 stroke 2hp, 3hp, 4hp outboard mots, perfect matching.2. Replace Part Number: The OEM number is 433935, 433915, 396852, 767407, 500332, the part number is 183015.3. High Quality Materials: Impeller is made of high quality copper rubber materials, wear resistant, high strength, sturdy durable.4. Excellent Perfmance: Professional manufacturing, exquisite wkmanship, high efficiency, stable perfmance high reliability.5. Application: Impeller is used f marine water pumping such as engine cooling, water transfer, wash down bilge water pumping purposes.Specification:Item Type: Water Pump ImpellerMaterial: CopperandRubberReplace OEM: 433935, 433915, 396852, 767407, 500332,Replace: 18-3015Number of Blades: 3High Degree of Impeller: Approx. 17mm or 0.67inImpeller Outer Diameter: Approx. 34mm or 1.34inInsert Diameter of Inner Axis: Approx. 11mm or 0.43inFitment: Replacement f Johnson Evinrude 2 stroke 2hp 3hp 4hp(Ultra Excel 1987-2006) outboard mots;Replacement f Johnson 2-stroke outboard mots: J2 J3 J4;Replacement f Evinrude 2 stroke outboard mots: E3 E4..Package List:1 xWater Pump ImpellerNote:Please double check the part number of your item, matching infmation is f reference only. If you are unsure of the item, please contact us befe buying to avoid unnecessary return, thanks!