Feature:1. Fitment: Water pump impeller is good replacement for Evinrude Johnson OMC BRP 40hp 50hp Outboard Engine.2. Part Number: Replacing part number for reference are 432941 766435 0432941 0766435, and other OE, replacement for Sierra 183104, 1831041.3. Multi Purpose: The impeller can be used for water pumping such as engine cooling, water delivery, wash down and bilge water pumping and other purposes, for fresh or sea water work.4. Recommendation: Flexible pump impeller is recommended to be replaced at least once a year or earlier, depending on engine duties. Always carry a spare impeller with you before rowing.5. Premium Material: Outboard water pump impeller is made of the high quality hardened copper and neoprene, which is heat resistant, wearproof and not easy to damage.Specification:Item Type: Outboard Water Pump ImpellerMaterial: Hardened Copper and Neoprene RubberOEM: 432941 766435 0432941 0766435Other OE: Replacement for Sierra 18-3104, 18-3104-1External Impeller Overall Diameter: Approx. 78.13mm(3 5/64in)Depth Height Width: Approx. 25.07mm(63/64in)Internal Shaft Insert Hub Diameter: Approx. 19.11mm(3/4in)Number Blades: 3Fitment:Replacement for Evinrude Johnson 40hp 48hp 50hp 1989-1994 outboard motorsReplacement for Evinrude outboards: E40, TE40, VE40, E48, VE48, E50, TE50, VE50,Replacement for Johnson outboards: J40, TJ40, J48, VJ48, J50, TJ50, VJ50Replacement for Evinrude Johnson OMC BRP 40hp 50hp Outboard Engine.Package List:1 xOutboard Water Pump ImpellerNote:1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!