This gearbox is a replacement component for STIHL brushcutters, fitting models including FS120, FS130, FS200, FS250, FS90, FS100, FR130, FR220, FR350, FR450 and FR480. It also suits FS110, FS100R, FS460, FS480, FS83, FS85 and FR85 variants.
The unit replaces OEM part number 4137 640. Installation is straightforward for users familiar with small engine maintenance, though we recommend consulting your machine’s manual if you’re uncertain about the fit or removal procedure.
Built to OEM specifications, this gearbox maintains the performance and durability expected from genuine STIHL-compatible components. Regular maintenance and proper storage will extend its working life.
Before or after purchase, our customer service team is available to answer questions about compatibility or delivery. We’re here to ensure you receive the right part for your equipment.
Ready to get your brushcutter back in action? Order now and we’ll process your delivery according to your location. Victoria orders typically arrive within 7–10 working days; NSW, SA, ACT and QLD within 9–12 working days; WA, NT and TAS also 9–12 working days.

















