$6.99 SHIPPING Equipment Orders over $250
Rotary 14633 Trimmer Gearbox Head replaces Stihl 4137 640 0100
Rotary 14633 trimmer gearbox head is a complete replacement unit designed for Stihl string trimmers and brush cutters. Features integrated gears for reliable power transmission from engine to cutting head. Direct replacement for Stihl OEM part 4137 640 0100. Compatible with FR130, FR220, FR350, FR450, FR480, FS36, FS40, FS44, FS75, FS80, FS83, FS85, FS90, FS100, FS120, FS130, FS200, FS250, FS460, and FS-KM models, plus FT100 cultivator. Premium-grade construction ensures durability and consistent performance across demanding landscaping applications. Install as a complete assembly to restore full cutting capability.
Replaces
STIHL: 4137-640-0100
Fits Models
STIHL: FS100, FS250, FS40, FS130, FS85, FS-KM, FS90, FS75, FS80, FR350, FS36, FS120, FT100, FS460, FS44, FS200, FR480, FR130, FS83, FR450, FR220
Return Policy
ALL RETURNS MUST HAVE PRIOR AUTHORIZATION
If you’re looking to return or exchange your order. we’re here to help! We accept returns within 30 days of delivery.Â
Learn more about exceptions and procedures regarding our Return & Refund Policy
