Yamaha - Impeller Water Pump Component 6L2-44352-00-00. Overview. If there's one part I never gamble on, it's the impeller. It's what keeps water moving through the motor, and once it starts to wear out, cooling drops off fast. I've seen engines overheat just because an old impeller looked "okay" but wasn't doing its job anymore. Swapping in a fresh one like this is simple insurance to keep everything running cool and safe.. Key Features. Efficient Water Circulation - Pumps water consistently through the cooling system.. Flexible Blade Design - Maintains strong water flow even under varying engine speeds.. Durable Rubber Construction - Built to handle heat, friction, and long-term use.. Factory-Spec Fitment - Designed to match Yamaha water pump systems for proper operation.. Essential Maintenance Item - Critical component for preventing overheating and engine damage.. Engine & Boat Compatibility. Designed for Yamaha outboard engines with compatible water pump systems. Commonly used acr