Water Pump Impeller – Fits Mercury Marine 3.9, 6 & 9.8 HP (Replaces Mercury Marine 47-22748, Sierra Marine 18-3074) 190-420HP 6AH-W0078-01-00

6AH-W0078-01-00

Thoroughly clean all mating surfaces to ensure they are free of old sealant

3GM Series provides all necessary components for overhauling the sea water pump on European-built Yanmar GM-YEU series diesel engines manufactured between 1996 and 2004

V6 and V8 MerCruiser engines require two shutters—one for each exhaust port on the Y-pipe

restoring optimal performance

Water Pump Impeller – Fits Mercury Marine 3.9, 6 & 9.8 HP (Replaces Mercury Marine 47-22748, Sierra Marine 18-3074) 190-420HP 6AH-W0078-01-00Product Details This Water Pump Impeller Fits Mercury Marine 3. 9, 6 & 9. 8 HP (Replaces 47 22748) is a direct fit replacement for maintaining the cooling system on Mercury Marine 2 Stroke 3. 9 HP, 6 HP (19742007) and 4 Stroke 9. 8 HP engines. Engineered for reliability, it ensures your engine receives proper water circulation to prevent overheating. It serves as a direct cross reference for multiple part numbers, including Mercury Marine 47 22748,