Is your vintage Mercury running hot? Restore maximum cooling efficiency and protect your classic engine with this New Sierra Water Pump Kit, precision-engineered to OEM standards. Designed for 2-cylinder Mercury 20HP outboards (1967-1980), this kit provides everything you need to restore consistent water flow and prevent engine overheating.
Compatible Fitments:
- Mercury 20HP (2 Cyl, 2.562 Bore) – 1980
- Mercury 20 HP (2 Cyl, 2.563 Bore Cross Flow
- Replaces OEM 46-48744A3
This ensures a factory-grade replacement for your original Mercury water pump assembly.
Main Items in the Water Pump Kit
- Impeller
- Upper Face Plate Gasket
- Lower Face Plate Gasket
- Water Pump Base Gasket
