Description

Sierra’s 18-3804 Head Gasket is designed for use with Mercury/Mariner Model 30A engines (serial number code 689). It is interchangeable with GLM 33880, Mallory 9-63960, Mercury Marine 27-19138, 27-19138M, 27-84733M, and Yamaha Outboard 689-11181-01-00, 689-11181-02-00, 689-11181-A0-00, 689-11181-A1-00, 689-11181-A2-00. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use with Mercury/Mariner Model 30A engines (serial number code 689)
Interchangeable with GLM 33880, Mallory 9-63960, Mercury Marine 27-19138, 27-19138M, 27-84733M, and Yamaha Outboard 689-11181-01-00, 689-11181-02-00, 689-11181-A0-00, 689-11181-A1-00, 689-11181-A2-00
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces