Description
Overview:
This is a genuine Stihl flywheel for selected 2‐stroke engines used in brushcutters and hedge trimmers. It is a cast aluminium rotor with cooling fins and embedded magnets for the ignition system. The flywheel smooths crankshaft rotation, helps move cooling air through the starter housing, and provides the engagement surface for the recoil starter pawls. Designed for a precise fit on compatible machines such as the FS 94 and FS 94 R, it restores reliable starting and consistent running when the original wheel is worn, cracked, or damaged. Manufactured to Stihl specifications for balance and durability, this part is supplied under MPN 4149 400 1200 and is a direct replacement for the listed models. Genuine Stihl Part for dependable performance.
Key Features:
- Genuine Stihl OEM component (MPN 4149 400 1200) for assured compatibility and fit
- Cast aluminium construction with factory balancing for smooth running and reduced vibration
- Integrated permanent magnets for stable ignition timing and reliable spark
- Cooling fins promote airflow around the cylinder to help manage operating temperature
- Direct replacement part; no modifications required on listed machines
- Durable, corrosion-resistant finish for long service life in outdoor conditions
- Designed to work with the recoil starter mechanism for consistent engagement
- Compatible across a wide range of FS, HL, KM and SP 94‐series models to simplify stocking and maintenance
- Straightforward to fit with standard workshop tools; refer to the Stihl service manual for torque settings
Typical Applications:
Ideal for restoring smooth engine operation, reliable starting, and correct ignition timing on Stihl brushcutters and hedge trimmers. Use when a flywheel is damaged by impact, shows cracked fins, has worn starter pawl surfaces, or when engine performance issues point to a faulty rotor. Suitable for routine overhauls and preventative maintenance.
Also known as:
Fly wheel, rotor, magneto rotor, ignition flywheel, fan wheel, engine rotor, magnet flywheel, starter pawl drive wheel.
Fits Models:
FS 94, FS 94 C, FS 94 R, FS 94 RC, HL 91 K, HL 91 KC, HL 92 C, HL 92 KC, HL 94, HL 94 C, HL 94 K, HL 94 KC, KM 94 R, KM 94 RC, SP 92 C, SP 92 TC
Alternate Part Numbers:
4149-400-1200, 41494001200
Product Specifications
| L&S Part No. | 4149 400 1200 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41494001200 |
| Unit of Sale | 1 |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM component for assured compatibility and fit - Cast aluminium with factory balancing for smooth operation - Integrated magnets ensure stable ignition timing - Cooling fins enhance airflow to manage engine temperature - Direct replacement for FS, HL, KM, and SP 94-series models |
| Fits Models | FS94, FS94 C, FS94R, FS94RC | KM94R, KM94RC | HL91K, HL91KC | HL92C, HL92KC | HL94, HL94C, HL94K, HL94KC |
