This Genuine Stihl Set of Pinions (OEM No. 4180 640 7301, MPN 41806407301) is a matched gear pair for Stihl brushcutters and clearing saws. Built from durable metal and precision-finished, the pinions restore smooth, efficient power transfer in the gearhead by replacing worn or damaged drive gears. Correct gear mesh helps reduce backlash, vibration and noise, protecting shafts, bearings and the cutting attachment. Designed for a precise fit in many models, including FS75 and FS80, it supports reliable performance in both professional and domestic use. Using genuine parts maintains factory tolerances and helps extend service life, keeping your machine cutting cleanly under load and reducing the likelihood of costly downstream repairs.

Key Features:
– Genuine Stihl part for assured fit and compatibility
– Matched pinion set for correct backlash and smooth engagement
– Durable metal construction for long service life
– Helps restore drive, reduce vibration and noise, and protect related components
– Supports full torque transfer to the cutting attachment under heavy load
– Stable alignment for consistent cutting performance
– Suitable for scheduled gearbooverhauls or targeted repairs
– Widely compatible across listed FS, FR and FSA series machines
– Straightforward replacement during routine gearhead service with standard tools

Typical Applications:
Used to renew the gearhead drive on brushcutters and clearing saws that show symptoms such as grinding, slipping, excess play or loss of drive. Ideal for workshop servicing, fleet maintenance, and home users restoring performance for grass trimming, brush clearing and roadside or estate upkeep. Helps keep machines working efficiently during long cutting sessions.

Also known as:
Pinion gear set, drive pinions, spur gear set, gear pair, gearhead pinions, replacement gear kit, cutter head gears, transmission gears for brushcutters.

Fits Models:
FR131 T, FR131T, FR235, FR410 C-E, FR410C, FR410C-E, FR410CE, FR460 TC-E, FR460 TC-EFM, FR460 TC-EM, FR460TC, FR460TC-E, FR460TC-EFM, FR460TC-EM, FR480 C-E, FR480C-E, FR480CE, FS-AW-4137, FS-KM, FS-KM-4180, FS111, FS111 R, FS111 R-Z, FS111-Z, FS111R, FS111R-Z, FS111RX, FS111RZ, FS111Z, FS120, FS120 R, FS120 R2-MIX, FS1202-MIX, FS120R, FS120R2-MIX, FS131, FS131 R, FS131 R-Z, FS131-Z, FS131R, FS131R-Z, FS131RZ, FS131Z, FS200, FS235, FS235 R, FS235R, FS240, FS240 C-E, FS240 R, FS240 R-Z, FS240 RC-E, FS240-Z, FS240C-E, FS240CE, FS240R, FS240R-Z, FS240RC-E, FS240RZ, FS240Z, FS250, FS250 R, FS250 R-Z, FS250R, FS250R-Z, FS250RZ, FS260, FS260 R, FS260 RC-E, FS260R, FS260RC-E, FS75, FS80, FS85, FS89, FS89 R, FS89R, FS91, FS91 R, FS91 R-Z, FS91-Z, FS91R, FS91R-Z, FS91RZ, FS91Z, FS94, FS94 C, FS94 C-E, FS94 C-E Z, FS94 R-Z, FS94 RC-E, FS94 RC-E Z, FS94C, FS94C-E, FS94C-EZ, FS94CE, FS94CEZ, FS94R, FS94R-Z, FS94RC, FS94RC-E, FS94RC-EZ, FS94RCE, FS94RZ, FSA130, FSA130 R, FSA130R, FSA135, FSA135 R, FSA135R, FSKM

Alternate Part Numbers:
4180 640 7301, 4180-640-7301, 41806407301

Product Specifications