46-60366A1 Water Pump Impeller Kit for Mercury 30 35 40 50 60 70 HP Outboards

Water Pump Impeller Kit for Mercury 30 35 40 50 60 70 HP Outboards

This water pump impeller kit replaces OEM part number 46-60366A1 for Mercury outboards, delivering reliable cooling for 30, 35, 40, 50, 60, and 70 HP motors.

Overview

This water pump impeller kit keeps an outboard running at the correct operating temperature by circulating raw coolant through the engine block. It includes the impeller and sealing components needed to rebuild the lower unit water pump. Designed for Mercury 30, 35, 40, 50, 60, and 70 HP outboards, this water pump impeller kit is the standard fix for a weak tell-tale stream or an overheating engine.

Built For Performance

• Replaces OEM part number 46-60366A1 for Mercury outboards
• Neoprene impeller blades flex at low RPM and deliver maximum flow at high RPM
• Includes new gaskets, o-rings, and key for a complete water pump service
• Matched to the original housing depth and rotation direction for reliable output
• Built to handle continuous operation in saltwater and freshwater

Fits These Machines

• for Mercury 30 HP
• for Mercury 35 HP
• for Mercury 40 HP
• for Mercury 50 HP
• for Mercury 60 HP
• for Mercury 70 HP

On-The-Job Use

• Annual outboard water pump inspection and impeller replacement
• Restoring cooling flow after a dried-out impeller or sand ingestion
• Preventing overheating in recreational, rental, and commercial outboards

Specs At A Glance

Good To Know

Q: How often should a water pump impeller be replaced? A: Most manufacturers recommend replacing the impeller every 100 hours or once per season. A weak tell-tale stream or an overheating engine means the service is overdue.

Q: Does this kit contain all the parts needed for the water pump service? A: It includes the impeller, gaskets, o-rings, and key needed for a full water pump rebuild on the listed Mercury outboards.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.