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turning the driveshaft clockwise to seat the vanes correctly
Disconnect the negative battery cable and remove the propeller for safety
9 mm × 88
It is designed for Yamaha 4-stroke 50HP
37110-93J01
Water Pump Impeller Kit – Fits Yamaha 2-Stroke 25-30HP, Mercury/Mariner 20-30HP (Replaces 689-W0078-A6-00) 300HP turning the driveshaft clockwise toProduct Details This Water Pump Impeller Kit provides all necessary components for servicing the water pump on Yamaha 2 stroke 25HP and 30HP outboard models (including CV25, C25, C30, CV30) and select Mercury Mariner 20HP to 30HP motors. It is engineered as a direct fit replacement to restore cooling system performance and prevent engine overheating. This kit serves as a direct interchange for Yamaha part numbers 689 W0078 A6 00, 689 W0078 06 00, 689
