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Description
4149 140 1003 STIHL Filter Cover – Genuine OEM Part
The STIHL Filter Cover (4149 140 1003) is a genuine OEM air filter cover designed for use on select STIHL trimmers and long-reach hedge trimmers (serial number ranges apply).
This cover is used in the air intake / filter housing area to protect the air filter and help keep dirt, dust, and debris out of the engine. Replacing a cracked, broken, loose, or missing filter cover helps maintain proper air filtration, protects the carburetor and engine from contamination, and supports reliable performance.
Manufactured to STIHL factory specifications, this OEM filter cover provides correct fitment, secure mounting, and long-lasting durability.
Product Details
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OEM Part Number: 4149 140 1003
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Brand: STIHL (Genuine OEM)
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Part Type: Filter Cover / Air Filter Cover
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Application: Air intake / filter housing area (varies by model)
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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 and filter housing
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Help prevent dirt and debris from entering the intake system
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Support proper airflow and reliable engine performance
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Replace cracked, broken, loose, or missing filter covers
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Maintain correct air filtration and long service life
⚠️ A damaged or missing filter cover may allow dirt into the engine, causing poor running and premature wear.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4149 140 1003
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Your STIHL model is listed below
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Your engine serial number matches the range shown
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Part location matches your parts diagram
⚠️ Always verify fitment by OEM part number and serial number for best accuracy.
Compatibility (Fits STIHL Models)
(Serial number range applies)
Hedge Trimmers / Long-Reach Units
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HL 91 K (Engine up to serial number 514399784)
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HL 94 KC-E (Engine up to serial number 514368761)
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HL 94 K (Engine up to serial number 514368761)
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HL 94 (Engine up to serial number 514368761)
Trimmers / Brushcutters
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FS 94 R (Engine up to serial number 514309587)
Installation Notes
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Turn off engine and allow it to cool
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Remove the old filter cover from the air filter housing
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Inspect the air filter and clean or replace if needed
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Install STIHL OEM filter cover 4149 140 1003
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Ensure the cover seats correctly and locks securely
⚠️ Make sure the cover is fully seated to prevent unfiltered air from entering the engine.
Maintenance Tips
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Inspect the filter cover regularly for cracks or loose fitment
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Keep the air filter clean for best performance
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Replace damaged covers to protect the carburetor and engine
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Use genuine STIHL OEM parts for correct fit and long-term durability
