CLUTCH PINION FOR POWER SAW COMPATIBLE GGP STIGA CASTELGARDEN ALPINA FOR MODELS: A4500 DIMENSIONS: (A) BORE: 15 MM (B) OUTER DIAMETER: 71 MM (C) INNER DIAMETER: 68 MM PITCH: aut. NUMBER OF TEETH: - CODE:360940 ORIGINAL CODE: 8550565 - 2041000 GGP ALPINA STIGA CASTELGARDEN