Description
Sierra’s 18-0988 Powerhead Base Gasket is designed for use in Mercury marine applications. It is interchangeable with GLM 31640, Mallory 9-60058, and Mercury Marine 27-37976, 27-62860, 27-628601. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Mercury marine applications
Interchangeable with GLM 31640, Mallory 9-60058, and Mercury Marine 27-37976, 27-62860, 27-628601
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces






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