Impeller Kit Replaces Yanmar 128990-42200 2GM20/3GM30-YEU & 2/3YM series pumps

Impeller Kit for Yanmar

This impeller kit replaces the Yanmar 128990-42200 water pump impeller and fits 2GM20, 3GM30-YEU, and 2/3YM series pumps, delivering reliable cooling for marine diesel engines.

Overview

This impeller kit is a direct replacement for Yanmar 128990-42200, ensuring your marine engine's cooling system operates efficiently. The kit includes the impeller and necessary components for a straightforward swap. It is designed for Yanmar 2GM20, 3GM30-YEU, and 2/3YM series pumps, providing a dependable solution for engine maintenance.

Built For Performance

• Precision-molded impeller blades for optimal water flow
• Direct replacement for OEM part number 128990-42200
• Includes required hardware for installation
• Resistant to wear from saltwater and debris
• Maintains consistent engine temperature under load

Fits These Machines

• for Yanmar 2GM20
• for Yanmar 3GM30-YEU
• for Yanmar 2YM series
• for Yanmar 3YM series

On-The-Job Use

• Replaces worn impellers in marine diesel cooling systems
• Ensures proper engine cooling during extended operation
• Suitable for saltwater and freshwater environments
• Commonly used in sailboat and trawler engines

Specs At A Glance

Good To Know

Q: How often should I replace the impeller? A: Typically every 500 hours or annually, depending on usage and water conditions.

Q: Does this kit include a gasket? A: The kit includes the impeller and necessary components for a complete replacement, though a gasket may be ordered separately if needed.

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