Description
Overview:
The Torsion Spring for Stihl BR340 and BR340L is a genuine OEM replacement designed to restore the correct rotational tension in your machine's mechanisms. Made from high-grade spring steel, this coiled torsion spring delivers consistent torque to levers, covers and linkages found in Stihl backpack blowers and mistblowers. Built to Stihl specification for the 4203 platform, it provides the precise fit and action needed for smooth operation, reliable control response and long service life. Suitable for regular professional or domestic use, it withstands the repeated twisting loads typical of outdoor power equipment. As a Genuine Stihl part (4203 182 4500), it is the right choice when the original spring has fatigued, lost tension or failed, helping your equipment perform as intended.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- OEM part number 4203 182 4500 for a precise, factory fit
- Durable spring steel construction for strength and fatigue resistance
- Consistent return force to maintain smooth, predictable controls
- Designed for regular outdoor use on blowers and sprayers
- Stable torque characteristics help reduce wear on connected parts
- Straightforward replacement with standard hand tools
- Supports reliable starting, shutdown, and control linkage function
Typical Applications:
Used during servicing or repair to replace a worn or broken torsion spring in Stihl backpack blowers and mistblowers. Ideal when controls feel slack, mechanisms do not return properly, or tension has been lost through fatigue. Suitable for routine maintenance, seasonal overhauls, or restoring machines that see frequent use in landscaping, grounds care, construction, and site clean-up.
Also known as:
Torsion coil spring, twist spring, return torsion spring, spring steel torsion coil, rotary spring, torque spring, control return spring. These names describe the same component style that provides rotational force to return levers or components to a neutral position in small engine equipment.
Fits Models:
BR340, BR340L, BR380, BR420, BR420C, BR45C, SR340, SR420
Alternate Part Numbers:
4203-182-4500, 42031824500
Product Specifications
| L&S Part No. | 4203 182 4500 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42031824500 |
| Unit of Sale | 1 |
| Applications | BR340, BR340L, BR380, BR420, BR420C, BR45C, SR 340, SR 420, SR340, SR420 |
| Machine Type | Backpack Blowers |
| Fits Brands | Stihl |
| Fits Models | BR45C | SR 340, SR 420 |
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