STIHL CHAINSAW CLUTCH PINION WITH CAGE AND PUMP ENGAGEMENT FOR MODELS: 024, 026 AFTER S7NX25809074 MS260, 270 DIMENSIONS: (A) BORE: 13 MM (B) OUTER DIAMETER: 71 MM (C) INNER DIAMETER: 68 MM INCH PITCH: 325" N TEETH: 7 PART NO.: 656240 ORIGINAL CODE: 100876X STIHL VR