Water Pump Impeller Gasket – Fits Yamaha 40HP 50HP 2-Stroke (Replaces 663-44324-A0) 35-60HP Apply a lubricant like silicone

Apply a lubricant like silicone grease

Clean the shaft and apply a marine-grade grease to prevent corrosion

What are the signs my exhaust bellow is failing

and 862351

and test the engine on a water supply to verify a strong telltale stream

Water Pump Impeller Gasket – Fits Yamaha 40HP 50HP 2-Stroke (Replaces 663-44324-A0) 35-60HP Apply a lubricant like siliconeProduct Details This Water Pump Impeller Gasket Fits Yamaha 40HP 50HP 2 Stroke (Replaces 663 44324 A0) is designed for Yamaha 2 stroke outboard engines, including 40 HP models from 19841994, 50 HP models from 19841987, 50 HP Pro Series from 19871990, and P50 models from 19951996. This gasket ensures a proper seal between water pump components, preventing leaks and maintaining efficient cooling system performance. Direct replacement for Yamaha OEM part