---
product_id: 75185266
title: "34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202"
brand: "mothar"
price: "€ 56.35"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/75185266-34mm-cylinder-piston-kit-for-stihl-brushcutter-fs38-fs45-fs46
store_origin: NL
region: Netherlands
---

# 34mm precision Complete kit High compatibility 34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202

**Brand:** mothar
**Price:** € 56.35
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade Your Gear, Elevate Your Game!

## Quick Answers

- **What is this?** 34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 by mothar
- **How much does it cost?** € 56.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/75185266-34mm-cylinder-piston-kit-for-stihl-brushcutter-fs38-fs45-fs46)

## Best For

- mothar enthusiasts

## Why This Product

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

## Key Features

- • **Unleash Your Power:** Transform your Stihl tools with this high-performance cylinder piston kit!
- • **Complete Replacement:** Includes all essential components for a hassle-free upgrade.
- • **Boost Your Efficiency:** Revitalize your equipment and tackle any job with confidence.
- • **Precision Engineering:** Crafted for a perfect fit, ensuring optimal performance.
- • **Versatile Compatibility:** Compatible with a wide range of Stihl models for ultimate convenience.

## Overview

The 34mm Cylinder Piston Kit is designed for Stihl Brushcutters and Blowers, including models FS38, FS45, FS46, FS55, and more. This comprehensive kit includes a cylinder, piston, piston pin, piston rings, and circlips, ensuring a seamless replacement for enhanced performance and reliability.

## Description



## Features

- Package Includes: 1X Cylinder,1X Piston,1X Piston Pin,2X Piston Ring,2X Circlips
- Replaces Parts Number: 4140 020 1202
- Cylinder Kit Compatible with Stihl Blower BG45 BG45C BG46 BG46DZ BG46Z BG55 BG55C BG65 BG65DZ BG65-Z BG85 BG85C Backpack Blower BR45C
- Cylinder Kit Compatible with Stihl Brushcutter FS38 FS45 FS46 FS55, Stihl Long Reach Hedgetrimmer HL45 HL45Z HL45DZ, Stihl Petrol Hedgetrimmer HS45 HS45Z, Stihl Blow-Vac SH55 SH85, Stihl Edger FC55 FC55Z FC55DZ.
- Cylinder Kit Compatible with Stihl Auger BT45, Stihl Engine KM55 C-E KM55 KM55 R Z KM55 RC-E DZ KM55 RC-E KM55 RC-E-Z KM55 R-DZ KM55C KM55R-C KM55R, Stihl Multi Tool Engine MM55 C-E-Z MM55 MM55Z.

## Images

![34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 - Image 1](https://m.media-amazon.com/images/I/71jQ37MNw1L.jpg)
![34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 - Image 2](https://m.media-amazon.com/images/I/718HxUXi2hL.jpg)
![34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 - Image 3](https://m.media-amazon.com/images/I/71QCvifpa6L.jpg)
![34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 - Image 4](https://m.media-amazon.com/images/I/715m89eWsML.jpg)
![34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202 - Image 5](https://m.media-amazon.com/images/I/711kT9h8ETL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ don't be scared that it's not tapped
*by P***N on July 28, 2021*

Fits and works great. It is true that the holes are not tapped - just run the bolts in carefully and they form their own threads just like a wood screw.

### ⭐ Unfinished Machining
*by J***S on May 11, 2022*

The cylinder and piston looked OK to start with, but problems soon developed. The rings were extremely brittle and broke during installation so I had to order a new set from another vendor. When they came, I installed them without a problem and set about putting the cylinder and new piston together with the bottom sections of the crankcase, but when I tried to install the bolts that thread into the cylinder base they started hard and only turned a couple of turns before getting too hard to turn. Upon disassembly and investigation I found that the threaded holes were indeed not threaded and the bolts had started into the unthreaded holes.. The machine work was incomplete. Some parts made in China are OK but quality control is hap-hazard or non-existent at others. These parts are used so they probably won't accept a return. Beware of buying from this vendor...you might get unfinished parts.

### ⭐⭐⭐⭐⭐ It fit perfect
*by D***. on October 12, 2024*

Got it fast put it on a FS80 weed eater

## Frequently Bought Together

- MothAr 34mm Cylinder Piston Kit for Stihl Brushcutter FS38 FS45 FS46 FS55 Blower BG45 BG46 BG55 BG65 BG85 BR45C and BT45 FC55 HL45 HS45 KM55 MM55 SH55 SH85 / 4140-020-1202
- Mtanlo Oil Seal for Stihl FS38 FS40 FS45 FS46 FS50 FS55 FS56 FS70 FS83 BG86 BG45 BG46 BG55 BG56 BG66 BG85 BR45C BT45 FC55 FC56 FC70C FC73 FC83 Backpack Blower Edger Brushcutter 9639 003 1230
- HUZTL FS45 FS55 FS55R Carburetor for STHIL FS38 FS46 HL45 FS45C FS46C FS55C FS55RC KM55 String Trimmer Weed Eater C1Q-S97

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-18*