Description
Overview:
This Fan Housing is a Genuine Stihl replacement part designed for selected Stihl hedge trimmers, including HS 81 R and HS 81 RC. It encloses and protects the flywheel fan and cooling area, helping direct airflow over the engine for reliable running and heat management. The housing is a precision-moulded polymer component built for outdoor use, resisting knocks, vibration and typical workshop contaminants. Supplied to the original equipment specification, it restores correct fit and appearance when the original cover is cracked, worn, or missing. Identified by Stihl reference 4237 080 1811 (also seen as 42370801811), this part fits cleanly with existing fixings and aligns with the trimmer's cooling ducts, maintaining performance and prolonging engine life.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- Durable polymer construction resists impacts, vibration and weather
- Maintains correct cooling airflow to protect the engine
- Clean, accurate moulding for quick, straightforward installation
- Matches original mounting points and clearances
- Helps prevent debris ingress around the flywheel and cooling fins
- Stable under typical operating temperatures and fuel/oil splashes
- Restores machine integrity and appearance after damage
Typical Applications:
Used to replace damaged or missing fan housings on compatible Stihl hedge trimmers. Ideal after impacts, fatigue cracks, or heat-related distortion. Helps keep the engine cool during long trimming sessions in gardens, estates, commercial grounds, and landscaping work, supporting reliable starting, consistent running and extended service life.
Also known as:
Fan cover, fan cowl, cooling shroud, blower cowling, engine cover (fan side), air guide housing, cooling cowling, fan casing.
Fits Models:
HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 82, HS 86 R, HS 86 T, HS 87
Alternate Part Numbers:
4237-080-1811, 4237 080 1802, 42370801811, 42370801802
Product Specifications
| L&S Part No. | 4237 080 1811 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42370801811 |
| Unit of Sale | 1 |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with HS 81 R and HS 81 RC - Durable polymer construction resists impacts and vibration - Maintains correct cooling airflow for engine protection - Matches original mounting points for easy installation - Fits models HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 82, HS 86 R, HS 86 T, HS 87 |
| Fits Models | HS81, HS86 | HS82 | HS87 |


