--- product_id: 144525197 title: "Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100" brand: "farwind" price: "53117CFA" currency: XOF in_stock: true category: "Farwind" url: https://www.desertcart.sn/products/144525197-trimmer-gearbox-head-for-stihl-fs55-fs55r-fs55rc-fs56-fs56rc store_origin: SN region: Senegal --- # Lightweight & easy installation Aluminum alloy body for durability 10 teeth, 1 in shaft for universal fit Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 **Brand:** farwind **Price:** 53117CFA **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your trimmer game with precision and power! ## Quick Answers - **What is this?** Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 by farwind - **How much does it cost?** 53117CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/144525197-trimmer-gearbox-head-for-stihl-fs55-fs55r-fs55rc-fs56-fs56rc) ## Best For - farwind enthusiasts ## Why This Product - Trusted farwind brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Corrosion-resistant aluminum alloy ensures long-term reliability and stable performance. - • **Effortless Upgrades:** Lightweight design and flexible mounting make swapping blades and heads a breeze. - • **Trusted Performance:** Highly rated by professionals and DIYers alike, delivering consistent mowing power. - • **Precision Engineering:** 10 teeth and 1-inch diameter shaft with square holes guarantee a secure, perfect fit. - • **Seamless Compatibility:** Fits a wide range of Stihl models, making it your go-to replacement part. ## Overview The Farwind Trimmer Gearbox Head is a durable, corrosion-resistant aluminum alloy replacement part compatible with numerous Stihl trimmer models. Featuring a 10-tooth, 1-inch diameter shaft with square attachment holes, it offers easy installation and reliable performance, making it the ideal choice for professionals and enthusiasts seeking a high-quality, versatile gearbox head. ## Description desertcart.com: Farwind Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 : Patio, Lawn & Garden ## Features - Replace OEM Part: 4137 640 0100, 4130 640 0100, 4130 641 0300 - Aluminum alloy body, sturdy structure, stable working performance, corrosion-resistant - Light weight, easy to install, flexible for changing mowing blades and trimmer heads, the best alternative to trimmer gearboxes - 10 teeth, 1 in/25.4 mm diameter shaft, square attachment holes, fits most straight shaft trimmers - Compatible with Stihl FS36, FS40, FS44,FS100, FS100R, FS100X, FS100RX, FS110, FS110R, FS110X, FS110RX, FS120, FS120R, FS130, FS130R, FS200, FS200R, FS240, FS240R, FS250, FS250R, FS260, FS260C, FS260RC, FS460C, FS460RC, FS480, FS480C, FR85, FR85T, FR130T, FR220, FR350, FR450, FR460, FR480, FT100, FS-KM ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07K8C8V62 | | Best Sellers Rank | #132,953 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,699 in String Trimmer Replacement Parts | | Customer Reviews | 4.2 4.2 out of 5 stars (166) | | Is Discontinued By Manufacturer | No | | Item Weight | 1.46 pounds | | Item model number | FW181106 | | Manufacturer | Farwind | | Package Dimensions | 7.24 x 5.2 x 3.27 inches | ## Images ![Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - Image 1](https://m.media-amazon.com/images/I/61pU2On-1JL.jpg) ![Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - Image 2](https://m.media-amazon.com/images/I/61xdLXUuRPL.jpg) ![Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - Image 3](https://m.media-amazon.com/images/I/61O7KbNQUdL.jpg) ![Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - Image 4](https://m.media-amazon.com/images/I/61zvaPHO3IL.jpg) ![Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - Image 5](https://m.media-amazon.com/images/I/61O4Uvs+0IL.jpg) ## Frequently Bought Together - Farwind Trimmer Gearbox Head for Stihl FS55 FS55R FS55RC FS56 FS56RC FS80 FS85 FS90 FS90R FS94 FS94R FS100RX FS110 FS120 FS130 FS130R FS240 FS240R FS250 FS-KM Gear Head 4137 640 0100 - AILEETE 25-2 Bump Feed Trimmer Head 4002 710 2108 for Stihl FS55 FS55R FS56 FS56RC FS70 FS70R FS80 FS85 FS90 FS90R FS91R FS94R FS100RX FS110 FS111RX FS120 FS130 FS131 FS240, Replaces 4002 710 2191 - AILEETE C26-2 Dual Line Trimmer Head 4002 710 2169 for Stihl FS55 FS55R FS56 FS56RC FS70 FS70R FS80 FS85 FS90 FS90R FS91 FS94 FS110 FS120 FS130 FS131 FS131R FS240 FS250 Brushucutters --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/144525197-trimmer-gearbox-head-for-stihl-fs55-fs55r-fs55rc-fs56-fs56rc](https://www.desertcart.sn/products/144525197-trimmer-gearbox-head-for-stihl-fs55-fs55r-fs55rc-fs56-fs56rc) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-02*