Fits 5-20 HP Outboard Motor - Full Outboard Cover for Mercury, Honda, Yamaha & Suzuki Marine Engine family-yamaha-9-9mlhv You should also verify that

You should also verify that your existing part number matches one of the numbers listed as a direct replacement

1 × Gasket (303615)

or water pump-specific grease during installation

and all hoses from the carburetor

Fits 5-20 HP Outboard Motor - Full Outboard Cover for Mercury, Honda, Yamaha & Suzuki Marine Engine family-yamaha-9-9mlhv You should also verify thatOutboard Motor Cover Fits Mercury, Yamaha, Honda 520 HP This outboard motor cover is designed to fit a wide range of Mercury, Yamaha, and Honda 520 HP outboard engines, including multiple 2 Stroke and 4 Stroke models from recent years. It offers robust protection against the elements, preserving your engine's finish and integrity. As an aftermarket component, this cover serves as a direct replacement for SeaSierra outboard engine covers, with