Stihl 1147 640 7110 Worm Gear Drive Links_92 which direct bar oil to

which direct bar oil to the chain's most critical wear points

Turning it in the releasing position and pressing the thumb brake needs very little force

and strong

part number 4144 020 2050

Stihl 1147 640 7110 Worm Gear Drive Links_92 which direct bar oil toThe Worm Gear is an authentic Stihl replacement part designed specifically for the MS 500i and MS 500i? W chainsaws, identified by OEM No. 1147 640 7110. This precision moulded gear is crafted from durable polymer, ensuring reliable performance and longevity. This essential component effectively transfers drive from the clutch side to the automatic chain oil pump, maintaining consistent lubrication for the bar and chain. By ensuring steady oil flow,