Sierra’s 18-99140 Head Gasket fits Yamaha 9.9 (1996-2008) and 15 (1996-2008) engines. It is interchangeable with Mallory 9-63955 and Yamaha Outboard 63V-11181-A0-00, 63V-11181-A1-00, and 63V-11181-A2-00. Each Sierra product is designed to meet or exceed the original equipment part it replaces.
Fits Yamaha 9.9 (1996-2008) and 15 (1996-2008) engines
Interchangeable with Mallory 9-63955 and Yamaha Outboard 63V-11181-A0-00, 63V-11181-A1-00, and 63V-11181-A2-00
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces
