Water Pump Impeller Kit – Fits Yamaha 4HP/5HP 2-Stroke, F4/F5/F6 4-Stroke (Replaces 6E0-W0078-A2-00) family-yamaha-c40tlrv then snug an additional quarter-turn

then snug an additional quarter-turn

Q: How often should I replace my water pump impeller as part of regular maintenance

Replace sooner if you notice reduced engine performance or fuel flow issues

822626Q03 323cc engines Mercury Outboard 20 4-Stroke 2008+ 8M0162832

or misalignment

Water Pump Impeller Kit – Fits Yamaha 4HP/5HP 2-Stroke, F4/F5/F6 4-Stroke (Replaces 6E0-W0078-A2-00) family-yamaha-c40tlrv then snug an additional quarter-turnWater Pump Impeller Kit Fits Yamaha 4HP 5HP 2 Stroke, F4 F5 F6 4 Stroke (Replaces 6E0 W0078 A2 00) This water pump impeller service kit is designed for Yamaha 2 Stroke 4HP and 5HP outboards (19882019) and 4 Stroke F4, F5, and F6 1 cylinder models (19982011). It provides all the necessary components to service and restore your engine's cooling system. This kit is a direct replacement for Yamaha OEM part numbers 6E0 W0078 A2 00, 6E0 W0078 00 00, 6E0