Description

Sierra’s 18-0389 Heat Exchange Gasket is designed to fit Mercruiser 3.7L engines with 4″ heat exchangers. It is interchangeable with GLM 31830 and Mercruiser 27-99960. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed to fit Mercruiser 3.7L engines with 4″ heat exchangers
Interchangeable with GLM 31830 and Mercruiser 27-99960
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces