The Stihl crankshaft half-crankshaft (code 1143-020-2936) is an original spare part for Stihl MS 241 C-M chainsaws. Includes 1.8x19 Cylindrical Pin, Bushing, 15x35x13 Groove Ball Bearing, Valve, 2.6x8 Slotted Cylindrical Nail, No. 4 Pins, M8 Collar Screw, IS-M5x22 MN Hollow Head Screw