Water Pump Impeller For Johnson Evinrude 10/15/18/20/25HP 375638 775518 18-3002

Water Pump Impeller for Johnson Evinrude

This water pump impeller for Johnson Evinrude outboards replaces OEM part numbers 375638 and 775518 as well as aftermarket part 18-3002, providing reliable cooling water circulation. Designed for Johnson Evinrude 10/15/18/20/25HP engines, this water pump impeller keeps the cooling system operating under load.

Overview

This water pump impeller is a direct replacement cooling component for Johnson Evinrude outboard motors. It moves water through the engine's cooling passages to prevent overheating. This water pump impeller suits boaters and mechanics maintaining Johnson Evinrude 10/15/18/20/25HP outboards.

Built For Performance

• Precision molded rubber vanes deliver consistent water flow at idle and high rpm.
• Corrosion-resistant materials withstand prolonged saltwater and freshwater use.
• Matches dimensional specifications for 375638, 775518, and 18-3002.
• Easy to install as a drop-in replacement in standard water pump housings.
• Designed to fit Johnson Evinrude 10/15/18/20/25HP outboard cooling systems.

Fits These Machines

• for Johnson Evinrude 10HP
• for Johnson Evinrude 15HP
• for Johnson Evinrude 18HP
• for Johnson Evinrude 20HP
• for Johnson Evinrude 25HP

On-The-Job Use

• Used for routine water pump replacement in Johnson Evinrude outboard engines during scheduled maintenance.
• Installed when overheating signs appear, such as weak tell-tale water flow or steam from the motor.
• Serves in freshwater and saltwater boating applications where continuous engine cooling is required.

Specs At A Glance

Good To Know

Q: How often should this water pump impeller be replaced? A: Inspect it during annual outboard maintenance and replace it if the rubber vanes show cracking, wear, or deformation. Most mechanics replace the impeller every one to three seasons depending on usage.

Q: Does this impeller fit a Johnson Evinrude outboard? A: It is designed to replace OEM part 375638, so check the engine's serial number and existing impeller part to confirm fit. This impeller fits Johnson Evinrude 10/15/18/20/25HP models listed above.

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