Water Pump Impeller Kit with Housing – Fits Yamaha 40-60 HP (Replaces 63D-W0078-01-00, Sierra 18-3415) 75-225HP Start the engine and check

Start the engine and check for smooth operation

Other Smooth Surfaces Glass

11 x Small Washers

Slide the new impeller onto the shaft while turning it clockwise to correctly orient the blades

Locate the alternator and identify the tensioning bolt or mechanism

Water Pump Impeller Kit with Housing – Fits Yamaha 40-60 HP (Replaces 63D-W0078-01-00, Sierra 18-3415) 75-225HP Start the engine and checkProduct Details This Water Pump Impeller Kit with Housing is a complete aftermarket solution designed for Yamaha 2 stroke (40 50 HP, 19952009) and 4 stroke (40 60 HP, 19952009) outboard engines. It provides everything necessary for a full water pump service to restore cooling performance and prevent overheating. It serves as a direct replacement for Yamaha OEM part numbers 63D W0078 01 00 and 63D W0078 03 00, as well as Sierra aftermarket parts 18