Tohatsu Genuine Parts 4-Stroke Outboard Motors for 2HP 3.5HP Drive Shaft Housing Gasket Part Number: 3AB-61012-0 [Compatibility] Year 2006 and up. MFS2 (2 horsepower): MFS2A MFS2B MFS2C MFS3.5 (3.5 hp): MFS3.5A MFS3.5B MFS3.5C