Usage Tips:1Replacing OEM numbers for reference: 389576 /0389576.2Practical accessory fit for Johnson Evinrude 4/4.5/5/6/8 horsepower.3Full power plus impeller, making it easy to repair and maintain water pumps.4Made of premium alloy and neoprene rubber, rugged, anti?corrosion and durable.5Easy to install, no complicated tools required, convenient to use.Condition: 100% Item Type: Water Pump ImpellerMaterial: Alloy + Neoprene RubberReplaces OEM: 389576 /0389576Impeller Size:Item Weight: Approx. 35g/1.2ozNumber of Blades: 6External Impeller Overall Diameter: Approx. 38.4mm/1.5inInternal Shaft Insert Diameter: Approx. 11.2mm/0.4inFitment:Fit for JOHNSON / EVINRUDE 389576 4/4.5/5/6/8 HorsepowerFit for Sierra P/N 18-3091Fit for CEF P/N 5003541 x Water Pump ImpellerPlease double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks