Sierra’s 18-0369 Powerhead Base Gasket is designed for use in Mercury marine applications. It is interchangeable with GLM 31870 and Mercury Marine 27-75909. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Mercury marine applications
Interchangeable with GLM 31870 and Mercury Marine 27-75909
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces
