Clutch Drum Chain Sprocket With Needle Bearing Compatible With Echo Chainsaw 0.325 Pitch 7 Teeth 21mm Height 14mm Bore Fits Echo CS 3900 4200ES 440 4400

Single unit clutch drum sprocket with needle bearing 0.325 pitch
✔️ 7 teeth, 21mm height, 14mm bore, 70mm drum ID, 0.325 pitch

This clutch drum is a precision-machined sprocket assembly with a needle bearing designed for CS-series chainsaws. It serves as the connection between the clutch and drive gear, providing smooth engagement and longer bearing life. Compatible with CS-3900, CS-4200ES, CS-440, and CS-4400 models.

✅ Part numbers include A556000172, A556000171, 17510535430, 17510533330, 17510519930, 17510519831, P021006060, 17501214630, 1751142530, 38065X 513442, 14890
✅ Compatible with Echo CS-3900, CS-4200ES, CS-440, CS-4400
✅ Spur Pitch 0.325, Teeth 7, Total Height 21mm, Bore 14mm
✅ Drum ID 70mm; Package includes 1 clutch drum and 1 needle bearing

💡 What is a clutch drum sprocket used for in chainsaw maintenance? This handy part helps drive the chain smoothly and improves clutch reliability. - Handy for replacing worn clutch drums and bearings - Improves drive alignment and reduces wear on moving parts - Compatible with Echo CS-3900, CS-4200ES, CS-440, CS-4400 models