CLUTCH PINION FOR GGP STIGA CASTELGARDEN ALPINA CHAINSAW FOR MODELS: 300, 438 DIMENSIONS: (A) BORE: 12,5 MM (B) OUTSIDE DIAMETER: 60 MM (C) INSIDE DIAMETER: 57 MM INCH PITCH: 3/8 " NÀ' TEETH: 6 CODE: 656020 ORIGINAL CODE: 4121200 GGP ALPINA STIGA CASTELGARDEN VR