OEM Part No: 1226N144HC, 12A074N1HC, SW1250SR, 12ST50SSR, 120SPEA074, 12SDEA074, 12DOCLSWHobby Champ 3/8LP – .050Fits Stiga models SE1.6, SE1.8, SP340Fits Alpina models ELETTRA 160/170, ENERGY 1.6, ENERGY 1.8, SINERGY 35, SINERGY 40, P360, P370, P390Fits Olympyk models 233, 234, 240, 244, 335, 340, 925, 932, 936, 940, 930, 935DX, 935X, EL40F, EL60F, EL700, EL900, OM-E200Fits Castel models CS16E, CS17E, CS36, CS39Fits Castor models ELETTRA 160/ 170, HIGH TECH 1.6/ 1.8, CP360, CP370, CP380Fits Oleo Mac models 233, 234, 240, 244, 335, 340, 925, 932, 936, 940, 930, 935DX, 935X, EL40F, EL60F, EL700, EL900, OM-E200Fits Blitz models B34, B300, B304, B400, B404, B4, B38, B35D, B35DX, B35, E140FFits Stihl models 009, 010, 011, 012, 015, 017, 018, 019, 020, 021, 023, 025, E10, E14, E160, E140, E180, HT70, HT75, MS140, MS170, MS171, MS171, MS180, MS181, MS190, MS191, MS192, MS200, MS200T, MS210, MS211, MS230, MS231, MS231, MS250, MS251, MS251Fits Echo models CS350TEF