Description
Overview:
The Carburettor 4237/21 is a genuine Stihl replacement part for petrol hedge trimmers, built to restore clean running and dependable power. It regulates the air-fuel mixture so your machine starts easily, idles steadily, and pulls strongly under load. The unit features a robust die‐cast aluminium body with precision fuel passages and fuel‐resistant polymer and rubber components for long service life. Designed for the HS82 and HS87 series, it matches the original specification for straightforward fitting and reliable sealing. Supplied to OEM No. 4237 120 0621, it is a direct, like‐for‐like replacement for worn, damaged, or beyond‐service carburettors, helping keep professional and domestic hedge maintenance on schedule with minimal downtime.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- OEM No. 4237 120 0621 for an exact fit on listed models
- Durable die‐cast aluminium construction resists corrosion, impact, and vibration
- Stable fuel metering for easier starting, smooth idle, and clean acceleration
- Supports efficient running when tuned correctly, helping reduce bogging and stalling
- Ready to install using existing linkages, intake boot, and fuel lines on compatible tools
- Built for frequent start/stop trimming typical of professional use
- Quality materials and precise machining for long service intervals and reliable sealing
Typical Applications:
Used to replace a faulty or worn carburettor on Stihl HS82/HS87 series hedge trimmers when symptoms such as hard starting, poor idle, flat spots, or loss of power persist after routine maintenance. Suitable for regular servicing by landscapers, grounds teams, contractors, and homeowners who require consistent performance and clean cutting in hedges, shrubs, and topiary.
Also known as:
Carburettor assembly, replacement carburettor, carb unit, carb kit, fuel mixer, metering unit, carb body, throttle body (carb), "carburetor" (US spelling).
Fits Models:
HS82, HS82R, HS82R-Z, HS82RC-E, HS82RCE, HS82RZ, HS82T, HS82T-Z, HS82TZ, HS87, HS87R, HS87R-Z, HS87RZ, HS87T, HS87T-Z, HS87TZ
Alternate Part Numbers:
4237 120 0621, 4237-120-0621, 42371200621
Product Specifications
| L&S Part No. | 4237 120 0621 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42371200621 |
| Unit of Sale | 1 |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with HS82/HS87 series - OEM No. 4237 120 0621 for precise fit - Die-cast aluminium body resists corrosion and impact - Stable fuel metering aids starting and smooth operation - Ready to install with existing linkages and fuel lines |
| Fits Models | HS82 | HS87 |

