Essential component of the drive system for the Partner 350, 351, Jonsered 2035, 2036, 2040 and 2041 chainsaws: needle roller, drive pulley and clutch. Original equipment manufacturer (OEM) part.

This product is specifically designed for the Partner 350, 351 and Jonsered 2035, 2036, 2040, and 2041 chainsaw series. It conforms to the original factory specifications for these chainsaw series. The needle roller drive pulley (clutch drive pulley) is a critical component of the centrifugal clutch. It is typically mounted in the clutch housing (clutch drum) and connected to the crankshaft or drive shaft via needle bearings. Once the engine reaches its operating speed, the clutch shoes engage and disengage, transferring power smoothly and efficiently to the drive sprocket and saw chain. Replacing the original drive pulley due to wear from heavy use, damaged needle bearings, or a deformed pulley body can effectively resolve issues such as power transmission slippage, chain creep at idle, unusual noises, and reduced transmission efficiency. Addressing these critical faults restores the machine's strong and reliable cutting performance.