Description
Overview:
This Trigger Interlock is a Genuine Stihl safety component for use on Stihl chainsaws, including the MS 211 and MS 211 C. It is a precision-moulded, durable polymer lever that forms part of the rear-handle control system. Its job is to prevent accidental throttle activation, so the saw only drives the chain when the operator deliberately depresses the interlock and trigger together. This helps reduce unintended starts and improves control during cutting. Designed to original dimensions for a direct fit, it restores the factory safety function on compatible models. Identified by OEM part number 1139 182 0800, it is suitable for routine maintenance or repair where the original interlock has worn, cracked, or become stiff through use, impact, or contamination by resin, oil, or dirt.
Key Features:
- Genuine Stihl part for assured fit and function on listed models
- Prevents accidental throttle engagement for improved operator safety
- Robust, fuel- and oil-resistant polymer to withstand chainsaw environments
- Direct replacement to restore original control feel and safety compliance
- Accurate moulding and geometry for smooth, positive actuation
- Lightweight component that does not affect tool balance
- Straightforward installation using existing handle hardware (no modifications)
- Suitable for preventative maintenance when the original lever shows wear
- OEM reference: 1139 182 0800 for easy identification and ordering
- Supports reliable operation for professional and DIY users alike
Typical Applications:
Replacement of a worn, cracked, or missing interlock on compatible Stihl chainsaws. Useful during routine servicing to maintain safe operation, or after impacts that affect handle controls. Helps cure issues such as a sticky throttle or an interlock that does not return cleanly, ensuring the saw only accelerates when intended.
Also known as:
Throttle interlock, throttle lockout, control lever lock, interlock lever, deadman lock, handle lockout, safety latch, trigger safety lever.
Fits Models:
MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C
Alternate Part Numbers:
1139-182-0800, 11391820800
Product Specifications
| L&S Part No. | 1139 182 0800 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11391820800 |
| Unit of Sale | 1 |
| Applications | MS 171, MS 171 C, MS 181, MS 181 C, MS 211, MS 211 C, MS171, MS171C, MS181, MS181C, MS211, MS211C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS171, MS171C | MS181, MS181C | MS211, MS211C |
