888687A1 Water Pump Impeller Repair Kit for Mercury 4 Stroke 225 HP EFI for Yamaha 150-300 HP Outboard Engine Cooling System Service Compatible with 61A-W0078 Sierra 18-3396 Replacement GLM 22199

The Water Pump Impeller Repair Kit is designed for Mercury Marine 4-Stroke 225 HP outboard motors and also for Yamaha outboards 150 175 200 225 250 300 HP. It helps keep the cooling system running smoothly during regular boating use
The Outboard Impeller Kit for Mercury Mariner Marine Outboard 888687A1 is also compatible with Yamaha Marine Outboard 61A-W0078-A1-00 61AW0078A100 Sierra Marine 18-3396-1 18-3396 18-9075 18-9076 GLM Marine 22199 11194
The Aftermarket Replacement Water Pump Repair Kit for Mercury includes components: a rubber impeller, Key, Housing, Cup, Plate, Gasket, O-Rings, Pins, Screws
The Water Pump Service Kit helps restore cooling performance by replacing worn parts that may cause overheating reduced water flow or water pump failure over time.
The Marine Cooling System Impeller Repair Kit is recommended for seasonal or 100-hour maintenance and helps prevent unexpected cooling problems when operating in seawater shallow areas or waters with debris.

Water Pump Impeller Repair Kit with Housing - Fits Mercury Mariner Marine Outboard 4 Stroke 225 HP Fits Yamaha Outboard 150 175 200 225 250 300 HP MotorsIt helps support engine cooling and maintain water flow for your boat's performance on the water.Compatible for Mercury Mariner Marine Outboard Motor Models(Verify your engine year and displacement):Fits for Mercury Marine 4 Stroke Models:Fits for Mercury mariner 225 HP EFI USA 0T653945 & upFits for Yamaha Marine 2 Stroke Models:2-Stroke 150 175 200 225 250 300 HP Motors2-Stroke P150 1992-19962-Stroke P175 1994-19962-Stroke P200 1991-19962-Stroke C150 19962-Stroke 150-225 19962-Stroke L150-L250 19962-Stroke S150-S250 19962-Stroke 225,250 1992-20232-Stroke "S150, SX150, S200, SX200, S250, SX250, V150~V250, VX150~VX250, VZ150~VZ200 (2.6L), Z150~Z300, P150~P200, C150" 1997-19992-Stroke PX150 1999Fits for Yamaha Marine 4 Stroke Models:4 Stroke 150 200 225 HP F150, F200, F225 MotorsFeel free to share your engine serial number for compatibility confirmation.Replaces Part Numbers:Replaces Mercury Mariner Marine Outboard 888687A1, 888687A 1, 888687AReplaces Yamaha Marine Outboard 61A-W0078-A1-00 61AW0078A100Replaces Yamaha Marine Outboard 61A-W0078-01 61A-W0078-A2Replaces Yamaha Marine Outboard 61A-W0078-A3 61A-W0078-A3-00 Replaces Yamaha Marine Outboard 61A-W0078A1-00 61AW007801 Replaces Yamaha Marine Outboard 61AW0078A2 61AW0078A3 61AW0078A300Replaces Yamaha Marine Outboard 61A-W0078-A4-00 61AW0078A400Replaces Sierra SEI West Marine 18-3396-1 18-3396 18-9075 18-9076 with Pump HousingReplaces GLM Marine 22199 11194Package Include:1 X Neoprene Impeller 6E5-44352-01-001 X Outboard Water Pump Housing 61A-44311-011 X Cup 61A-44322-001 X Wear Plate 6G5-44323-001 X Gasket 6E5-44315-A0-001 X Woodruff Key 90280-04002-001 X O-Ring 93210-37M67-001 X O-Ring 93210-86M38-002 X Dowel Pin 93606-120194 X Bolt w/ Wahser 90119-08M14-00please refer to the images for details.Key Features of Our Kit:Neoprene rubber impeller resists saltwater corrosion for pumping performance and service life.Drop-in design for DIY installation: ready in minutes with basic tools.Materials tested for heat resistance abrasion and operation in fresh or saltwater conditions.Why Regular Impeller Replacement MattersThe impeller draws in water to circulate through the engine for heat dissipation. Over time saltwater exposure debris dry running or wear can cause the rubber blades to crack deform or break off—reducing water flow and risking engine damage like warped cylinders or seized pistons. Marine sources suggest inspecting and replacing it every season or after 100 hours of use to help avoid repair costs and support performance.