Water Pump Impeller Kit For Johnson Evinrude 4/5/6/8 HP Outboard 396644, 18-4529

Water Pump Impeller Kit for Johnson Evinrude

This water pump impeller kit is designed for Johnson and Evinrude outboard motors of 4, 5, 6, and 8 horsepower, providing essential cooling system maintenance with OEM cross-reference numbers 396644 and 18-4529.

Overview

This water pump impeller kit provides replacement components for the cooling system on Johnson and Evinrude outboard motors from 4 to 8 horsepower. It includes the impeller, gasket, and necessary seals to restore water flow and prevent overheating. Built to match OEM specifications, this water pump impeller kit is a cost-effective solution for seasonal outboard maintenance.

Built For Performance

• Flexible rubber impeller blades deliver consistent water pump pressure
• Includes O-ring and gasket for a leak-free seal
• Metal hub insert ensures secure drive engagement
• Compatible with both short and long shaft outboards
• Tested to withstand saltwater and freshwater environments

On-The-Job Use

• Replaces worn impellers that cause overheating during extended runs
• Essential for spring tune-ups on small fishing and dinghy outboards
• Used by mechanics to restore cooling performance on Johnson/Evinrude 4-8 HP motors

Specs At A Glance

Good To Know

Q: How often should I replace the water pump impeller? A: It is recommended to replace the impeller every two seasons or if the motor shows signs of overheating, such as reduced tell-tale water stream.

Q: Will this kit fit both Johnson and Evinrude motors? A: Yes, this water pump impeller kit is designed for both Johnson and Evinrude outboards in the 4-8 HP range using OEM parts 396644 and 18-4529.

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