Description
Overview:
This Trigger Interlock is a Genuine Stihl OEM safety component for hand-held machines in the FC, FS, HL, HT and KM ranges. Moulded from durable, impact-resistant plastic, it sits in the handle assembly and stops the throttle trigger moving until the operator deliberately presses it, helping to prevent accidental activation. Designed for a precise fit on popular models such as FS 38 and FC 70 C, it restores correct feel and function where the original part has worn, cracked or gone missing. Supplied to Stihl specification under MPN 4140 182 0800, it integrates with existing handle hardware and brings your trimmer or edger back to safe, dependable operation without modifying the tool.
Key Features:
- Genuine Stihl OEM part for assured fit and performance (MPN 4140 182 0800)
- Tough moulded plastic resists wear, vibration and weathering
- Prevents unintended throttle engagement to improve user safety
- Accurate geometry for smooth, positive safety action
- Direct replacement; no modifications to the handle required
- Quick to install with basic hand tools
- Supports safe starting and controlled throttle use
- Compatible across a wide family of Stihl FC/FS/HL/HT/KM models
- Helps extend the service life of the handle assembly
- Practical, low-cost fix versus replacing the complete housing
Typical Applications:
Replacing a worn, cracked or missing safety lever in the handle of Stihl petrol trimmers, brushcutters, edgers, hedge trimmers and Kombi engines. Suitable for routine servicing, repairs after impact or heavy use, and for resolving sticky or loose trigger behaviour so the machine starts and runs only when intended.
Also known as:
Safety switch, trigger lock, throttle lock, lock-out lever, handle interlock, dead-man lever, trigger safety, safety catch.
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:
4140-182-0800, 41401820800
Product Specifications
| L&S Part No. | 4140 182 0800 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41401820800 |
| 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 | Trimmers, Edgers |
| 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 |
