Besttoolifes Chainsaw Clutch Drum Sprocket Kit, 3/8" 6T with Needle Bearing (10×12×10 mm), Clutch Washer and E-Clip, for MS170, MS180, MS210, MS230, MS250
Besttoolifes Chainsaw Clutch Drum Assembly with 3/8" 7-Tooth Sprocket – Replacement Part for CS-370 / CS-400 / CS-440 / CS-450 Series Chainsaws
Besttoolifes Chainsaw Clutch Drum Cover – Bar Nose Sprocket Assembly for Series Chainsaws Including MS240 to MS660, Compatible with 024–066 Models and
Besttoolifes Chainsaw Clutch Component Kit for MS171 & MS211 Series – 3/8 Pitch 6-Teeth Spur Gear, Sprocket Cover, Clutch Drum, Washer, Electronic Clip