This genuine Stihl drive shaft is the inner power-transmission shaft for professional clearing saws, designed to carry engine torque smoothly to the gearboand cutting attachment. Built from durable, high‐strength steel, it maintains reliable drive under heavy load and frequent use. It is suitable for Stihl straight‐shaft clearing saws such as the FS 380 and FS 400 and is identified by MPN 4128 711 3200. Fitting a sound inner shaft prevents slippage, vibration, and loss of cutting performance, keeping your machine productive and safe. Ideal as a like‐for‐like replacement when the original shaft shows wear, twist, or fraying, it supports efficient brush and scrub clearance in demanding site and estate maintenance work. Genuine Stihl part for consistent fit and service life.

Key Features:
– Genuine Stihl part for assured compatibility and quality
– Robust steel construction for dependable torque transfer under load
– Precision fit to minimise vibration and driveline chatter
– Helps restore cutting performance when the original shaft is worn
– Suitable for routine maintenance and long‐term fleet reliability
– Designed for straight‐shaft clearing saws with OEM drive tube dimensions
– Supports smooth engagement with clutch and gearbofor consistent power
– Built to Stihl standards for durability and long service intervals

Typical Applications:
Replacement inner shaft for brushcutters/clearing saws used in grounds maintenance, landscaping, forestry thinning, utilities, and site clearance. Ideal when power to the head is intermittent, noisy, or reduced, or after inspection finds a twisted, frayed, or worn shaft. Helps maintain safe, efficient cutting of heavy grass, bramble, scrub, and light woody growth.

Also known as:
Inner drive shaft, flexible drive, fleshaft, transmission shaft, inner cable, drive core, power shaft, brushcutter shaft, clearing saw inner rod.

Fits Models:
FS 380, FS 400, FS 450, FS 480

Alternate Part Numbers:
4128-711-3200, 41287113200

Product Specifications