Sierra water pump parts and impellers are manufactured to stringent quality standards and are fully interchangeable with the OEM products they are designed to replace.Sierra manufacturers impellers and water pump repair kits for most outboard, inboard and sterndrive applications. Sierra impellers and water pump repair kits are designed to directly replace the original OEM parts. All parts are manufactured to stringent quality standardsKey FeaturesWater pump repair kits and parts are manufactured to match the original part and are fully interchangeable with the OEM products they are designed to replaceRecommended replacement schedule for impellers is every 3 years for freshwater and every year for saltwaterSierra Part #ApplicationReplaces OEM Part #Additional InformationModel18-2559-9Chrysler/Force/US Marine27-19202Mercury 6/8/9.9/15hp1050928918-2560-9Chrysler/Force/US Marine12-866451N/A1050929718-2562-9Chrysler/Force/US Marine27-993261N/A1050931318-2564-9Chrysler/Force/US Marine27-430331N/A1050933918-2565-9Chrysler/Force/US Marine27-430472N/A1050934718-2566-9Chrysler/Force/US Marine27-817277N/A1050935418-2558-9GLM31220For Mercury 6/8/9.9/15hp1050927118-2559-9GLM31230Mercury 6/8/9.9/15hp1050928918-2560-9GLM31210N/A1050929718-2561-9GLM32000N/A1050930518-2562-9GLM32360N/A1050931318-2563-9GLM30290N/A1050932118-2564-9GLM30090N/A1050933918-2565-9GLM30320N/A1050934718-2566-9GLM30290N/A1050935418-2563-9Honda