STIHL CHAINSAW CLUTCH PINION WITH CAGE FOR MODELS: 041, PRIMA SERIAL NUMBER 5664891 DIMENSIONS: (A) BORE: 14 MM (B) OUTER DIAMETER: 72 MM (C) INNER DIAMETER: 68 MM INCH PITCH: 3/8" N TEETH: 7 CODE: 656233 ORIGINAL CODE: 13916X STIHL VR