Spare parts for lawnmowers: gearbox and cutting head for STIHL FS 85, 90, 120, 200 and 250

This product is specifically designed for various classic STIHL backpack lawn mowers (FS85, FS90, FS120, FS200, FS250 and other series). The gearbox unit conforms to the original factory specifications. It is the central component of the power transmission system. An internal precision gear transfers the rotary motion of the input shaft by 90 degrees to the output shaft, thus driving the high-speed rotation of the cutting blade or nylon cutting head. The gearbox unit can replace worn, jammed, noisy, or leaking original cutting heads, or those whose housings have been damaged by continuous overloading, insufficient lubrication, water ingress, corrosion, or impact. It fully restores the power transmission efficiency, cutting stability, and overall reliability of the machine.