Yamaha - Impeller - Water Pump Component - 682-44352-03-00

Overview

If there’s one part I never ignore on a Yamaha, it’s the impeller. It’s what keeps water moving through the engine, and once it starts wearing out, overheating isn’t far behind. I’ve pulled plenty of these that looked fine at a glance but weren’t pushing water like they should. Replacing it on time keeps the cooling system working right and saves you from bigger problems out on the water.

Key Features

• Consistent Water Pumping – Moves cooling water through the engine to regulate temperature.
• Genuine Yamaha Fitment – Designed to match factory water pump housing and components.
• Flexible Blade Design – Maintains proper water flow even under varying engine speeds.
• Supports Overheat Prevention – Helps protect the engine by maintaining steady cooling circulation.
• Durable Rubber Construction – Built to handle continuous rotation and marine conditions.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this impeller. Verify fitment based on your specific engine model.

FAQ

Q: How do I know when the impeller needs to be replaced?
A: Weak water stream, overheating, or long periods of sitting without use are common indicators.

Q: How often should I replace my impeller?
A: Most people replace it every season or every 100 hours, depending on use.

Q: Can a bad impeller damage the engine?
A: Yes, if it fails, it can lead to overheating and serious engine damage.

Q: Is this something I can replace myself?
A: It’s doable if you’re comfortable dropping the lower unit and working on the water pump.

Q: Does running dry affect the impeller?
A: Yes, even a short dry run can damage the blades and reduce performance.

• Supersessions
  682-44352-40-00, 682-44352-01-00, 682-44352-00-00