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Drain Gearcase Oil: Place a drain pan under the lower unit and remove the upper and lower oil drain screws to drain the gearcase lubricant
250G 250 2-Stroke 1990 & UP Yamaha 300 HP 300 2-Stroke 2004 & UP Yamaha F75 75 4-Stroke 2017 Yamaha F90 90 4-Stroke 2016–2018 Yamaha F100B
typically at the front top of the engine where the main coolant hose connects
Refill Fluid: Fill the hydraulic fluid reservoir to the manufacturer's recommended level using the proper fluid type
Installation Method: Direct Replacement
Water Pump Impeller Kit – Fits Yamaha 15/20 HP 4-Stroke Outboard Motors (Replaces 6AH-W0078-00-00) family-mercury-115hp Drain Gearcase Oil: Place aWater Pump Impeller Kit Fits Yamaha 15 20 HP 4 Stroke Outboard Motors This water pump impeller service kit provides everything needed for a complete replacement on select Yamaha 15 HP and 20 HP 4 stroke outboard motors. It is designed to restore the performance and reliability of your engine's cooling system. This kit is a direct replacement for Yamaha part numbers 6AH W0078 00 00, 6AH W0078 01 00, 6AH W0078 02 00, and Sierra Marine 18 3479. It is