Yamaha - Cover, Water Inlet 2 Cooling System Protection Component 6P2-45215-00-00. Overview. This is one of those parts you don't notice until it's missing or damaged-and by then, you're dealing with overheating or debris in the system. I've seen plenty of impellers chewed up just from running without proper inlet protection. When this cover is in place, water flow stays clean and consistent, which is exactly what you want when you're running shallow or dirty water. It's a simple piece, but it protects some of the most important parts of your motor.. Key Features. • Debris Protection Design - Helps keep sand, weeds, and debris out of the cooling system.• OEM Precision Fit - Installs cleanly into Yamaha housings with no modification required.• Durable Marine Construction - Built to handle impact, sun exposure, and harsh water conditions.• Maintains Proper Water Flow - Supports consistent cooling system performance and engine temperature control.. Engine & Boat Compatibility. Designed fo