Description
Overview:
This genuine Stihl torsion spring (MPN 4140 182 4505) is a small but vital component used in various Stihl grass trimmers, brushcutters, hedge trimmers and Kombi engines. Made from durable metal suitable for repetitive flexing, it provides controlled rotational force to return levers or mechanisms to their resting position, helping your machine operate smoothly. It is designed for a precise fit in popular models such as the FS40 and FS40C, ensuring correct tension and dependable performance. Replacing a worn or broken spring helps restore proper function, reduces the chance of sticking controls, and supports the longevity of surrounding parts. As a Genuine Stihl OEM part, it matches the original specification for fit and function, making maintenance straightforward and reliable.
Key Features:
- Genuine Stihl OEM part for assured compatibility and performance
- Provides consistent torsional tension to restore smooth control movement
- Durable metal construction designed for repeated cycles under load
- Accurate fit reduces the risk of misalignment or premature wear
- Helps prevent poor starting, sluggish throttle response, or sticking controls
- Supports overall reliability of trigger, choke, or linkage mechanisms
- Compact form factor for easy handling during installation
- Replaces failed or fatigued springs to extend machine service life
Typical Applications:
Used in control and linkage assemblies on Stihl trimmers, brushcutters, hedge trimmers, pole pruners and Kombi engines. Typical roles include returning throttle triggers, choke levers, or other pivoting parts to rest after operation. Ideal when controls feel loose, fail to return, or after routine servicing where a fatigued spring is identified.
Also known as:
Torsion spring, twist spring, return spring, coil torsion spring, control spring, trigger return spring, lever return spring, mechanical spring.
Fits Models:
FC 55, FC 55 DZ, FC 56, FC 56 C, FC 70, FC 70 C, FS 36, FS 38, FS 40, FS 40 C, FS 44, FS 45, FS 45 C, FS 45 L, FS 46, FS 46 C, FS 50, FS 50 C, FS 55, FS 55 C, FS 55 R, FS 55 RC, FS 55 T, FS 56, FS 56 C, FS 56 R, FS 56 RC, FS 70 C, FS 70 R, FS 70 RC, HL 45, HL 56 K, HT 56 C, KM 55, KM 55 C, KM 55 R, KM 55 RC, KM 56 C, KM 56 RC
Alternate Part Numbers:
4140-182-4505, 41401824505
Product Specifications
| L&S Part No. | 4140 182 4505 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41401824505 |
| Unit of Sale | 1 |
| Applications | FC 55, FC 55 DZ, FC 56, FC 56 C, FC 70, FC 70 C, FC55, FC55DZ, FC56, FC56C, FC70, FC70C, FS 36, FS 38, FS 40, FS 40 C, FS 44, FS 45, FS 45 C, FS 45 L, FS 46, FS 46 C, FS 50, FS 50 C, FS 55, FS 55 C, FS 55 R, FS 55 RC, FS 55 T, FS 56, FS 56 C, FS 56 R, FS 56 RC, FS 70 C, FS 70 R, FS 70 RC, FS36, FS38, FS40, FS40C, FS44, FS45, FS45C, FS45L, FS46, FS46C, FS50, FS50C, FS55, FS55C, FS55R, FS55RC, FS55T, FS56, FS56C, FS56R, FS56RC, FS70C, FS70R, FS70RC, HL 45, HL 56 K, HL45, HL56K, HT 56 C, HT56 C, HT56C, KM 55, KM 55 C, KM 55 R, KM 55 RC, KM 56 C, KM 56 RC, KM55, KM55C, KM55R, KM55RC, KM56C, KM56RC |
| Machine Type | Brushcutters, Trimmers, Pole Pruners |
| Fits Brands | Stihl |
| Fits Models | FS36, FS40, FS44 | FS38, FS45, FS46 | FS40, FS50 | FS55, FS55C, FS55R | FS56, FS56C, FS56R | FS70C, FS70R, FS70RC | HT56 C | KM55, KM55C, KM55R, KM55RC | KM56C, KM56RC | FC 55 DZ | FC 56 | FC 70, FC 70 C | HL45 | HL56K |
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