---
product_id: 474015586
title: "Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114"
brand: "toolcool"
price: "S$77"
currency: SGD
in_stock: true
reviews_count: 1
url: https://www.desertcart.sg/products/474015586-toolcool-trimmer-gear-head-gearbox-head-replacement-for-stihl-weed
store_origin: SG
region: Singapore
---

# Lightweight & easy install Aluminum alloy body 10 teeth design Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114

**Brand:** toolcool
**Price:** S$77
**Availability:** ✅ In Stock

## Summary

> 🌿 Trim with Confidence: Upgrade Your Gear Today!

## Quick Answers

- **What is this?** Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 by toolcool
- **How much does it cost?** S$77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/474015586-toolcool-trimmer-gear-head-gearbox-head-replacement-for-stihl-weed)

## Best For

- toolcool enthusiasts

## Why This Product

- Trusted toolcool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Durability:** Crafted from high-quality aluminum alloy for corrosion resistance and longevity.
- • **Precision Engineering:** 10 teeth and a 1 inch diameter shaft provide optimal performance for all your trimming needs.
- • **Flexible Functionality:** Easily switch between blades and trimmer heads for a customized cutting experience.
- • **Effortless Installation:** Lightweight design allows for quick and easy installation, getting you back to work in no time.
- • **Versatile Compatibility:** Designed to fit a wide range of STIHL trimmers, ensuring seamless integration.

## Overview

The ToolcoolTrimmer Gear Head Gearbox is a high-performance replacement part designed for various STIHL weed eaters. Made from durable aluminum alloy, it features a lightweight design for easy installation and a 10 teeth configuration for efficient cutting. Compatible with numerous STIHL models, this gearbox assembly ensures reliable performance and flexibility in blade exchange.

## Description

Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114

## Features

- Aluminum alloy body, solid structure, corrosion resistance, stable working performance
- Lightweight and easy to install, flexible exchange of weed eater blades and trimmer head,a good replacement for your trimmer gearbox
- 10 teeth, 1 inch/25.4mm diameter shaft, square connection hole, fits most straight shaft trimmers
- 1 x Trimmer Gearbox Assembly & 1 x Mounting Bolt
- Compatible with STIHL FS-KM FS75 FS80 FS80R FS85 FS85R FS85T FS85RX FS91 FS91R FS110 FS110R FS111 FS111R FS120 FS120R FS130 FS130R FS131 FS131R FS200 FS200R FS230 FR230 FS235 FR235 FS240 FS240R FS240C FS250 FS250R FS260 FS260R FS260RC FR410

## Images

![Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 - Image 1](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/61FOU+FIGmL.jpg)
![Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 - Image 2](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/71YYI+pNErL.jpg)
![Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 - Image 3](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/71qnuE+311L.jpg)
![Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 - Image 4](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/61i5RugqtIL.jpg)
![Toolcool Trimmer Gear Head Gearbox Head Replacement for Stihl Weed Eater Head FS91R FS120 FS200 FS220 FS400 FS450 String Trimmer Brush Cutter Part No. 41806400114 - Image 5](https://m.media-amazon.com/images/W/WEBP_402378-T2/images/I/71FTJoBqOYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Effective
  

*by S***E on Reviewed in the United States 🇺🇸 on September 28, 2022*

This gearbox does work with a Stihl FS131R weed eater.  The only thing I do not like about this product is that the screws that come with the item do not have a screw-head that fits into the tool driver to secure the screws.  The screw heads have some funky top that you have to use vice-grips to secure it down.  My best advice is to keep the old screws from the original gearbox.

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**Shop now:** [https://www.desertcart.sg/products/474015586-toolcool-trimmer-gear-head-gearbox-head-replacement-for-stihl-weed](https://www.desertcart.sg/products/474015586-toolcool-trimmer-gear-head-gearbox-head-replacement-for-stihl-weed)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-25*