The British Seagull® 55/600 Gearbox Kit contains replacement service parts generally located around the Forty and Century series outboards fitted with sealed gearboxes.
This British Seagull part is suitable for Forty and Century series British Seagull Outboards fitted with a non-sealed gearbox including FS, GFS, EFS, TSEF, EGF, FPC, GFPC, EFPC, SEFPC, TSEFPC, WSC and ESC engines.