Sierra's 18-3861 Head Gasket is designed for use with Mercury 135, 150, and XR4 engines. It is interchangeable with GLM 35850, Mallory 9-63851, and Mercury Marine 27-18785-1, 27-187853, 27-18785T. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use with Mercury 135, 150, and XR4 engines
Interchangeable with GLM 35850, Mallory 9-63851, and Mercury Marine 27-18785-1, 27-187853, 27-18785T
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces
Designed for use with Mercury 135, 150, and XR4 engines
Interchangeable with GLM 35850, Mallory 9-63851, and Mercury Marine 27-18785-1, 27-187853, 27-18785T
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces