Yamaha - Water Pump Impeller 7 3/16 Inch Cooling System Component 6FP-JD001-06-24. Overview. The Yamaha Water Pump Impeller 7 3/16 Inch 6FP-JD001-06-24 is one of those parts you don't wait on-it's routine maintenance if you want to keep your motor running cool. When an impeller starts to wear, you'll usually notice weak water flow or rising temps, especially at idle. It's the heart of the cooling system, constantly pulling water through the engine. Swapping it out regularly is one of the easiest ways to avoid overheating issues out on the water.. Key Features. • Strong Water Flow Output - Circulates water efficiently through the engine to maintain proper temperature.. • OEM Fit Precision - Designed to match Yamaha water pump housing for correct fit and performance.. • Flexible Blade Design - Maintains consistent pumping action even under varying engine speeds.. • Heat and Wear Resistance - Built to handle friction, heat, and continuous marine use.. Compatibility. Compatible with select