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- 4180 140 1009 STIHL Filter Cover – Genuine OEM Part
Description
4180 140 1009 STIHL Filter Cover – Genuine OEM Part
The STIHL Filter Cover (4180 140 1009) is a genuine OEM replacement air filter cover designed for use on select STIHL professional trimmers, brushcutters, KombiMotor units, hedge trimmers, and augers.
This cover protects the air filter assembly from dirt, debris, and external damage while ensuring proper airflow into the engine. A correctly installed filter cover is essential for maintaining proper filtration, engine efficiency, and long service life.
Manufactured to STIHL factory specifications, this OEM filter cover ensures correct fitment, durability, and reliable operation in demanding conditions.
Replacing a cracked, loose, or missing filter cover helps protect the air intake system and prevents dirt ingestion or performance problems.
Product Details
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OEM Part Number: 4180 140 1009
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Brand: STIHL (Genuine OEM)
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Part Type: Filter Cover
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Application: Air filter housing cover (model-specific)
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Condition: New Genuine OEM Part
Function
This OEM filter cover is designed to:
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Protect the air filter from dust and debris
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Maintain proper airflow into the carburetor and engine
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Secure the air filter assembly in place
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Replace broken or missing filter covers
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Support consistent engine performance and filtration
⚠️ A damaged or missing filter cover may allow dirt into the engine, causing poor performance or premature wear.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4180 140 1009
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Air filter housing configuration matches your model
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Application matches your STIHL illustrated parts diagram
⚠️ Air intake components vary by model and production year — always verify fitment by OEM part number.
Compatibility
Fits select STIHL models and configurations, including:
Trimmers / Brushcutters
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FS 91 / FS 91 R / FS 91.0
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FS 111 / FS 111 R / FS 111 RX
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FS 131 / FS 131 R / FS 131.0 / FS 131.0 R
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FS 311
Edgers
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FC 91
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FC 96
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FC 111
KombiMotors
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KM 91 R
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KM 111 R
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KM 131 R
Hedge Trimmers / Pole Pruners
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HT 102
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HT 105
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HT 131
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HT 132
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HT 133
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HT 134
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HT 135
Augers / Other Units
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BT 131
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FB 131
(Exact application depends on model configuration — verify using OEM parts diagram.)
Installation Notes
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Remove the existing filter cover as required
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Inspect the air filter and housing for debris
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Install filter cover 4180 140 1009 securely in place
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Ensure proper sealing and airflow alignment
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Replace the air filter if dirty or damaged
⚠️ Always service the air filter system in a clean environment.
Maintenance Tips
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Clean or replace air filters regularly to maintain engine performance
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Inspect the cover for cracks, wear, or loose fitment
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Always use genuine STIHL OEM air intake parts for correct fit and durability

