Water Pump Impeller Kit – Fits Johnson/Evinrude 4-8 HP (Replaces 396644, 0396644, 18-4529) family-yamaha-40esrp Drain Coolant: Place a drain

Drain Coolant: Place a drain pan under the engine and drain the cooling system

Drain Coolant: Fully drain the engine's closed cooling system to prevent spills

How can I be sure this filter fits my Yamaha engine

You can also use the Yamaha serial number guide linked in the Compatible Engine Models section to verify your engine details

Lubricate the inside of the new pump housing and install it over the impeller

Water Pump Impeller Kit – Fits Johnson/Evinrude 4-8 HP (Replaces 396644, 0396644, 18-4529) family-yamaha-40esrp Drain Coolant: Place a drainWater Pump Impeller Kit Fits Johnson Evinrude 4 8 HP (Replaces 396644, 18 4529) This water pump impeller kit is designed for Johnson Evinrude 4 8 HP 2 Stroke outboards (1980 2005) and 5 6 HP 4 Stroke (128cc) outboards (1998 2004). It provides a direct fit replacement solution for your original water pump components, ensuring reliable engine cooling. This kit serves as a direct replacement for Johnson Evinrude part numbers 396644 0396644, Sierra 18