396644 18 4529 Water Pump Impeller Kit for Johnson Evinrude 4 5 6 8 HP Outboard

Product Overview

This water pump impeller kit is designed for Johnson and Evinrude outboard engines from 4 to 8 horsepower. It circulates cooling water through the engine to prevent overheating during operation. Boat owners and marine mechanics rely on this impeller kit to maintain proper water flow and extend engine life.

Key Features & Performance

• Includes impeller, gaskets, and seals for a complete replacement
• Precision-molded rubber impeller provides consistent water flow
• Corrosion-resistant materials withstand marine environments
• Direct replacement for OEM part numbers 396644 and 18-4529
• Easy to install with basic hand tools

Fitment & Compatibility

• Johnson 4 HP outboard motors
• Johnson 5 HP outboard motors
• Johnson 6 HP outboard motors
• Johnson 8 HP outboard motors
• Evinrude 4 HP outboard motors
• Evinrude 5 HP outboard motors
• Evinrude 6 HP outboard motors
• Evinrude 8 HP outboard motors

Common Uses

• Replacing worn or damaged water pump impellers in small outboards
• Annual maintenance to prevent overheating and pump failure
• Restoring cooling system performance on older Johnson/Evinrude engines
• Boaters preparing for fishing or recreational outings

Technical Specifications

• Part Number(s): 396644, 18-4529
• Compatible Horsepower: 4-8 HP
• Engine Brand: Johnson, Evinrude
• Product Type: Water Pump Impeller Kit

Frequently Asked Questions

Q: Is this impeller kit compatible with my 1995 Johnson 6 HP? A: Yes, this kit fits Johnson and Evinrude 4-8 HP outboards regardless of year as long as they use the same OEM parts 396644 or 18-4529.

Q: Does the kit include the housing or just the impeller? A: It includes the impeller, gaskets, and seals but not the metal housing. You reuse your existing housing.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.