Sierra’s 18-2025 Oil Seal is designed for use in Johnson and Evinrude outboard applications. It is interchangeable with GLM 86120, Johnson/Evinrude Outboard 0318972, and Mallory 9-76201. Each Sierra product meets or exceeds the original equipment part it replaces.
O.D.: 0.875″
Shaft Size: 0.500″
Width: 0.250″
Interchangeable with GLM 86120, Johnson/Evinrude Outboard 0318972, and Mallory 9-76201
Each Sierra product meets or exceeds the original equipment part it replaces








