The Sierra 18-8304 Oil Seal is built with precision for optimal performance and reliability. Designed to be interchangeable with the following: Evinrude/Johnson 321830. Each Sierra product meets or exceeds the original equipment part it replaces. O.D.: 31.8 mm; Shaft Size: 20.37 mm; Width: 6.35 mm.
Sierra Oil Seal
Meets or exceeds the original equipment quality
Interchangeable with the following: Evinrude/Johnson 321830
O.D.: 31.8 mm; Shaft Size: 20.37 mm; Width: 6.35 mm
Sierra Oil Seal
Meets or exceeds the original equipment quality
Interchangeable with the following: Evinrude/Johnson 321830
O.D.: 31.8 mm; Shaft Size: 20.37 mm; Width: 6.35 mm