Yamaha - Water Level Float Cooling System Sensor Component 6P3-24469-00-00. Overview. This is one of those parts that quietly does its job until it doesn't-and then you notice fast. I've seen floats stick or wear out and suddenly you're chasing warning lights or missing them altogether. When it's working right, it keeps track of water levels and gives you a heads-up before anything gets serious. It's a small component, but it's tied directly to protecting your engine.. Key Features. • Reliable Level Monitoring - Tracks water level conditions to support accurate system feedback.• OEM Fit and Function - Designed to install cleanly and operate as intended with factory systems.• Corrosion-Resistant Materials - Built to handle constant exposure to water and marine conditions.• Supports Engine Protection Systems - Helps trigger alerts that prevent cooling-related issues.. Engine & Boat Compatibility. Designed for Yamaha outboard engines equipped with water level monitoring or cooling system