Accessories compatible with the STIHL MS240, MS260 and MS261 chainsaws: worm gear, oil pump, drive wheel, worm shaft and lubrication system.--BIEMMEDUE

Original specifications specifically for STIHL MS240, MS260, and MS261 series chainsaws. Worm gear turbine unit (oil pump drive). This product is the central drive element of the chainsaw's automatic lubrication system. It typically consists of a worm gear (mounted on the crankshaft) and a turbine (which drives the oil pump). It replaces original parts that have failed due to wear, gear breakage, loose bushings, or drive damage. It restores stable oil pump drive, ensuring continuous and reliable lubrication of the chain and guide bars. It is a crucial component for resolving problems such as insufficient lubrication and damage from dry friction, and extends the service life of the drive components.