Clutch Drum Sprocket Rim compatible with models 138, 141, 142, 145, 146, 147, 151, 152 and MT5200.Includes clutch drum, sprocket rim, and needle bearing.Spur pitch: 0.325 inch.Teeth: 7.Total height: 27 mm.Hole ID: 15 mm.Drum ID: 63.5 mm.Roller cage part number: 31153.Compatible with models 930, 937, 938, 941, 942, 944, 945, 946, 947, 950, 951, 952, 956 and GS520.Part numbers: 50080023, 094500046, 005000165, 11177X, 111178X, 11892, 31153.