Gasket Cylinder Head for Yamaha Outboard 40-50 HP 3cyl, 63D-11181-A0-00  Fits:  Yamaha 40-50hp 3cyl 40(1997-05) 50(1997-08) C40(1997-03) P40(1998) C50(1998-01)  Replaces: Yamaha 63D-11181-A1 Cross Reference: 63D-11181-A1-00, 63D-11181-A2-00 Our aftermarket parts are either...