Thermostat gasket for Yamaha outboard 40 hp 2str 40B 40C 6E9-12414-A1 Will fit:  2 STROKE: 40B 40C, 1990-1996, 2 CYL Replaces Yamaha Part Numbers: 6E9-12414-A0-00, 6E9-12414-A1, 6E9-12414-A1-00, 6E912414A000, 6E912414A1, 6E912414A100 If...