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Description
4180 080 1819 STIHL Fan Housing – Genuine OEM Part
The STIHL Fan Housing (4180 080 1819) is a genuine OEM replacement fan housing designed for use on select STIHL trimmers, brushcutters, and hedge trimmers.
This fan housing is installed around the clutch and cooling fan area and plays a critical role in directing airflow for engine cooling while protecting internal rotating components. Proper fan housing fitment is essential for safe operation and effective engine cooling.
Manufactured to STIHL factory specifications, this fan housing provides the correct shape, mounting points, and durability required to withstand heat, vibration, and continuous use.
Replacing a cracked or damaged fan housing helps maintain proper airflow, protects the clutch assembly, and prevents overheating.
Manufactured to STIHL OEM standards, this fan housing ensures correct fitment and long service life.
Product Details
OEM Part Number: 4180 080 1819
Brand: STIHL (Genuine OEM)
Part Type: Fan Housing
Application: Clutch and cooling fan housing (model-specific)
Condition: New Genuine OEM Part
Function
This OEM fan housing is designed to:
Direct cooling airflow around the engine and clutch
Protect the clutch and fan components
Support proper engine cooling
Replace cracked or damaged original housings
Maintain safe and reliable equipment operation
⚠️ Operating with a damaged or missing fan housing may lead to overheating or clutch damage.
Verify Fitment (Recommended)
Before ordering, confirm:
OEM part number 4180 080 1819
Application matches your STIHL parts diagram
Fan housing location corresponds to clutch and fan area
⚠️ Always verify fitment by OEM part number and parts diagram, as fan housings vary by model.
Compatibility
Fits select STIHL models, including:
FS 91
FS 91 R
FS 91.0
FS 111
FS 111 R
FS 111 RX
FS 131
FS 131 R
FS 131.0
FS 131.0 R
FC 91
FC 96
FC 111
KM 91 R
KM 111 R
KM 131 R
FB 131
HT 101
HT 102
HT 131
HT 133
(Exact application varies by model and configuration — verify using OEM parts diagram.)
Installation Notes
Turn off engine and allow it to cool
Remove the existing fan housing carefully
Inspect clutch and fan components
Install STIHL OEM fan housing 4180 080 1819 securely
Ensure proper alignment and fastening
⚠️ Improper installation may affect airflow or clutch operation.
Maintenance Tips
Inspect fan housing regularly for cracks or heat damage
Keep cooling air passages clean
Use only genuine STIHL OEM fan housings for correct fit and durability

