Description
Overview:
This Genuine Stihl choke shutter is a small but vital carburettor component that controls the engine's air intake during cold start and warm-up. Made from durable metal (steel), it is designed for an accurate fit and reliable movement on the choke spindle, helping your machine start consistently and run smoothly. Suitable for a range of Stihl equipment, it is commonly used on the BT360 earth auger and the 08S chainsaw. By closing and opening the choke passage precisely, it enriches the fuel mix for starting and then allows normal airflow once running. OEM Part No. 4201 121 2900 ensures correct specification and compatibility for dependable performance in everyday use and demanding site conditions.
Key Features:
- Genuine Stihl part for assured compatibility and performance (OEM 4201 121 2900)
- Robust steel construction for long service life in harsh environments
- Regulates air intake for easier starting and stable idle
- Accurate geometry for smooth choke operation and consistent sealing
- Helps reduce hard starting, flooding, and stalling issues linked to worn shutters
- Direct replacement part; straightforward to fit with basic hand tools
- Manufactured to OEM tolerances to protect engine performance and fuel economy
- Suitable for Stihl augers, chainsaws, and cut-off saws listed below
Typical Applications:
Used to restore reliable cold starts and steady running where the choke plate is worn, bent, or corroded. Common in routine carburettor overhauls on Stihl earth augers, older chainsaws, and cut-off saws operated on building sites, landscaping jobs, and forestry tasks. Ideal when experiencing difficult starting, uneven idle, or poor throttle response caused by incorrect air/fuel mixture at start-up.
Also known as:
Choke butterfly, choke flap, carburettor choke plate, air shutter, choke disc, butterfly choke, choke damper.
Fits Models:
08 S, 08S, BT 360, BT360, TS 350, TS 350 AVE, TS 360, TS350, TS350AVE, TS360
Alternate Part Numbers:
4201-121-2900, 42011212900
Product Specifications
| L&S Part No. | 4201 121 2900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42011212900 |
| Unit of Sale | 1 |
| Machine Type | Augers, Disc Cutters |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility (OEM 4201 121 2900) - Durable steel construction for long service life - Regulates air intake for easier starting - Accurate fit for smooth choke operation - Suitable for Stihl augers and chainsaws listed |
| Fits Models | TS350, TS360 | 08S |
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