For Mercruiser 7.4L 8.2L V8 Raw Water Pump Impeller 47-59362T 1 18-3087 89740

Raw Water Pump Impeller for Mercruiser

This raw water pump impeller for Mercruiser is a direct replacement for OEM part numbers 47-59362T1, 18-3087, and 89740, ensuring proper cooling for V8 marine engines.

Overview

The raw water pump impeller is essential for drawing water from outside the boat to cool the engine. Designed for Mercruiser 7.4L and 8.2L V8 powertrains, this raw water pump impeller delivers reliable performance. Replace your worn impeller with this durable raw water pump impeller to avoid overheating.

Built For Performance

• Flexible rubber vanes for positive water displacement
• Corrosion-resistant stainless steel hub
• Precision fit for Mercruiser pump housings
• Handles debris and sand without damage
• Straightforward installation with standard tools

Fits These Machines

• for Mercruiser 7.4L V8
• for Mercruiser 8.2L V8

On-The-Job Use

• Draws raw water from the marine environment
• For stern drive and inboard engines
• For use in salt or fresh water
• For routine impeller replacement intervals

Specs At A Glance

Good To Know

Q: What is the difference between raw water and fresh water cooling? A: Raw water cooling draws water directly from the outside environment, while fresh water cooling uses a closed loop with a heat exchanger. This impeller is for raw water systems.

Q: How do I know if my impeller needs replacement? A: Signs include overheating, reduced water flow from the exhaust, or visible wear on the vanes. Check annually.

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