Yamaha - Water Pump Impeller 6-1/8" CB - Cooling System Component - 63D-JD000-08-24

Overview

The impeller is the core of your engine’s cooling system, and when it starts to wear, cooling performance drops fast. This Yamaha 6-1/8" impeller is designed to move a high volume of water through the engine to keep temperatures under control. If you’re noticing weak water flow or just staying on top of maintenance, replacing the impeller is one of the most important things you can do to protect your motor. Regular replacement helps prevent overheating and keeps everything running smooth.

Key Features

• High-Volume Water Flow – Designed to efficiently circulate water through the engine for proper cooling.

• 6-1/8" Impeller Design – Sized for larger pump systems requiring strong water movement.

• OEM Yamaha Fitment – Genuine part built to factory specifications for proper performance.

• Flexible Durable Blades – Maintains shape and efficiency under continuous operation.

Engine & Boat Compatibility

• Compatible with select Yamaha outboards that utilize this 6-1/8" impeller (confirm fitment by model and year)

FAQ

Q: What makes this impeller different from smaller ones?
A: Its 6-1/8" size is designed for higher-capacity cooling systems that require stronger water flow.

Q: How often should I replace this impeller?
A: Typically every 1–2 years depending on usage and operating conditions.

Q: What are signs of a worn impeller?
A: Weak water stream, overheating, or inconsistent cooling performance.

Q: Can I run the engine with a bad impeller?
A: It’s not recommended, as it can quickly lead to engine overheating.