Sierra 18-2566 Impeller Gasket for Mercury Water Pumps

Part No: SM-18-2566

Sierra Marine gasket 18-2566 for the pump impeller will replace the following gaskets:

- Mercury 27-817277 & 27-817277-1

- Mallory 9-60023

The water pump impeller gasket is suitable for the following engines:

Mercury / Mariner:

- 70hp, 75hp, 80hp & 90hp 4-cylinder (A996142 & Up)

- 100hp, 115hp & 125hp 4-cylinder (B209468 & Up)

Mercruiser:

- Alpha I Gen 2