Compatible with Stihl MS460 046 chainsawReplace OEM for 1128 020 1221, 1128 007 1000, 1122 664 0503, 1122 664 0508, 1128 640 3206Sprocket rim feature 3/8" pitch, 7 teeth, inner hole 22mmCylinder bore 54mmInclude 1 x Cylinder, 1 x Piston, 1 x Pin, 2 x Ring, 2 x Circlip, 1 x Clutch Drum, 1 x Sprocket Rim, 1 x Oil Pump, 1 x Worm Gear, 1 x Sprocket Washer, 1 x E-clip, 1 x Muffler Gasket, 1 x Spark Plug, 1 x Decompression Valve, 1 x Clutch Needle Bearing, 1 x Piston Needle Bearing, 1 x Felling Dog SetNotice: Mounting the inner spike on an 046 or MS460 requires slight modification to the mounting hole, these are for the small and large side cover for 1122 648 0403, 1122 640 1707, 1125 640 1701