Description
Overview:
This Genuine Stihl control unit is the electronic management module for MS661C-MW and MS661C-M chainsaws. Built around a sealed electronics package within a durable polymer housing, it governs key engine functions to keep the saw running smoothly under changing load and temperature. The unit monitors and adjusts parameters for reliable starting, stable idle, clean acceleration, and consistent top-end power. Designed as a direct replacement to restore factory performance, it uses Stihl-specific connectors for a secure fit within the saw's existing wiring. Genuine Stihl part (OEM No. 1144 400 4704) for assured compatibility and long service life in demanding forestry, arborist, and construction environments.
Key Features:
- Genuine Stihl replacement for OEM No. 1144 400 4704, ensuring correct fit and function
- Regulates the chainsaw's electronic control system for stable running across conditions
- Helps maintain easy starting, smooth idle, and reliable throttle response under load
- Sealed electronics and robust housing designed to handle vibration and dust
- Factory-style connectors for straightforward installation and reduced downtime
- Calibrated for MS661 series M-Tronic systems to maintain original performance
- Suitable for professional and DIY users needing dependable daily operation
- Tested to Stihl standards for durability in tough, outdoor applications
Typical Applications:
Used to replace a faulty or intermittent control module causing hard starting, erratic idle, hesitation, or poor top-end performance. Ideal for saws used in felling, pruning, sectioning, storm clearance, milling, and site preparation where consistent engine behaviour and quick restarts are important.
Also known as:
Engine control unit (ECU), electronic control module, M-Tronic module, ignition control unit, chainsaw control module, engine management module.
Fits Models:
MS661, MS661C, MS661C-M, MS661C-MW, MS661CM
Alternate Part Numbers:
1144 400 4704, 1144-400-4704, 11444004704
Product Specifications
| L&S Part No. | 1144 400 4704 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11444004704 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl replacement for OEM No. 1144 400 4704 - Compatible with MS661, MS661C, MS661C-M, MS661C-MW - Regulates electronic control for stable chainsaw performance - Sealed electronics withstand vibration and dust - Factory-style connectors for easy installation |
| Fits Models | MS661, MS661C |
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