Water Pump Impeller for Mercury 4-Str 25 30HP EFI Outboard 47-161541 47-16154-1

Water Pump Impeller for Mercury 4-Stroke

This water pump impeller is a direct replacement for OEM part numbers 47-161541 and 47-16154-1, ensuring proper cooling for Mercury 4-stroke 25 and 30 HP EFI outboards.

Overview

This water pump impeller is a premium replacement component designed specifically for Mercury 4-stroke EFI outboards in 25 and 30 horsepower ratings. It circulates coolant through the engine block to prevent overheating and maintain optimal performance. The impeller matches OEM specifications for a seamless fit and dependable operation.

Built For Performance

• High-grade rubber compound resists wear and deformation
• Stainless steel center hub provides secure attachment
• Precision-cut blades deliver maximum water flow
• OEM-compatible dimensions for straightforward installation
• Corrosion-resistant materials extend service life

On-The-Job Use

• Replace a failing water pump during routine service
• Restore cooling efficiency in EFI outboard engines
• Maintain proper thermostat operation and engine temperature
• Support consistent performance during long fishing trips

Specs At A Glance

Good To Know

Q: What signs indicate a worn water pump impeller? A: Common signs include engine overheating, low water flow from the tell-tale, or unusual noise from the lower unit. Replacing the impeller promptly prevents engine damage.

Q: Can I install this impeller myself? A: Yes, if you have basic outboard maintenance skills and the appropriate tools. Follow the service manual for your specific Mercury model to ensure proper installation.

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