Precise Multi-Model Compatibility: High-performance clutch drum housing assembly professionally designed to fit For Stihl straight shaft trimmers, edgers, pole pruners, and KombiSystems. Perfectly compatible with models FS91, FS91R, FS111, FS111RX, FS131, FS131R, FC91, KM111R, KM131, KM131R, HT103, HT131, and HT133.
Direct OEM Replacement: Specifically engineered to replace original equipment manufacturer part numbers 4180 080 1811, 4180-080-1811, 41800801811, 4180 080 1819, 4180-080-1819, and 41800801819. Restores factory-level connection and solves issues related to a jammed, slipping, or worn-out clutch system.
Stable Power Transmission: This assembly effectively locks into the engine's clutch mechanism to deliver seamless and smooth power transmission down the drive shaft to your trimmer head or pole saw. It provides reliable engagement, ensuring steady, high-efficiency cutting performance during demanding yard tasks.
Heavy-Duty Construction: Manufactured from high-grade, wear-resistant metal with a precision-molded housing cover. Built to withstand sustained high-speed rotations and thermal friction without warping or cracking, significantly reducing component damage and replacement frequency under professional or commercial load.
Reduced Slippage & Easy Repair: Features a rational, factory-spec internal structural design that maximizes torque transfer and minimizes slipping at high RPMs. This ready-to-install drum assembly helps your device maintain smooth, vibration-free operation even during prolonged and intensive residential landscaping maintenance.