Water Pump Impeller 47-16154-3 For Tohatsu Nissan Mercury Mariner 4HP 5HP 6HP

Water Pump Impeller for Tohatsu, Nissan, Mercury, and Mariner

This water pump impeller for Tohatsu, Nissan, Mercury, and Mariner outboards replaces OEM part 47-16154-3 to keep cooling water circulating through 4 HP, 5 HP, and 6 HP engines.

Overview

This water pump impeller for Tohatsu, Nissan, Mercury, and Mariner outboards is a direct replacement water pump impeller for 4 HP, 5 HP, and 6 HP engines. It moves cooling water through the water pump to prevent overheating during operation. The water pump impeller matches OEM part 47-16154-3 specifications for dependable cooling system performance.

Built For Performance

• Replaces OEM water pump impeller part 47-16154-3 for a direct fit in compatible outboards
• Fits Tohatsu, Nissan, Mercury, and Mariner outboards with 4 HP, 5 HP, or 6 HP ratings
• Helps maintain steady cooling water flow to protect the engine from overheating
• Designed for routine water pump service on small marine outboard motors
• Required part when servicing the lower unit cooling system

Fits These Machines

• for Tohatsu 4 HP Outboard
• for Tohatsu 5 HP Outboard
• for Tohatsu 6 HP Outboard
• for Nissan 4 HP Outboard
• for Nissan 5 HP Outboard
• for Nissan 6 HP Outboard
• for Mercury 4 HP Outboard
• for Mercury 5 HP Outboard
• for Mercury 6 HP Outboard
• for Mariner 4 HP Outboard
• for Mariner 5 HP Outboard
• for Mariner 6 HP Outboard

On-The-Job Use

• Replacing a worn water pump impeller during routine outboard lower unit service
• Restoring cooling water flow in saltwater or freshwater marine use
• Servicing small outboards used on dinghies, tenders, and small fishing boats
• Preventing engine overheating from impeller wear in 4 to 6 HP motors

Specs At A Glance

Good To Know

Q: Why is replacing the water pump impeller important? A: A worn impeller reduces cooling water flow and can cause the engine to overheat. Replace it whenever the water pump service is performed.

Q: How can a buyer verify that this impeller fits an outboard? A: Check the engine serial number and confirm that the original impeller part number is 47-16154-3. Fit can vary by model year and exact engine type.

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