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Description
4229 140 2801 STIHL Filter Housing – Genuine OEM Air Filter & Carburetor Part
The STIHL Filter Housing (4229 140 2801) is a genuine OEM air intake component designed to support proper air filtration and carburetor protection across a range of STIHL handheld blowers and shredder vac units. This housing secures the air filter in place and ensures clean airflow into the carburetor for reliable engine performance.
Over time, filter housings may crack, warp, or wear due to vibration, heat, debris exposure, or repeated maintenance. A damaged housing can lead to poor sealing, unfiltered air entering the carburetor, reduced engine efficiency, and premature engine wear. Replacing it with the correct OEM part helps restore proper air filter fitment without replacing the entire intake assembly.
Manufactured to STIHL factory specifications, this genuine filter housing ensures correct fit, sealing, and long-term durability under professional operating conditions.
Product Details
OEM Part Number: 4229 140 2801
Old / Replaced Part Number: 4229 140 2800
Brand: STIHL (Genuine OEM)
Part Type: Filter Housing
Application: Air filter mounting and carburetor intake system
Condition: New Genuine OEM Part
Function
This STIHL filter housing is designed to:
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Secure the air filter element in the correct position
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Protect the carburetor from dirt and debris ingestion
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Maintain proper airflow into the engine
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Improve filtration sealing and engine efficiency
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Replace cracked or worn air filter housings
⚠️ A damaged filter housing can allow unfiltered air into the carburetor, causing poor performance and accelerated engine wear.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4229 140 2801
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Your unit model matches those listed below
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Application matches your STIHL illustrated parts diagram
⚠️ Filter housings are model-specific — always verify by OEM part number and equipment type.
Compatibility
This OEM filter housing fits many STIHL blower and shredder vac models used with specific carburetor and air filter configurations, including:
Blowers / Shredder Vac Units
SH 55 (Carburetor, Air filter)
SH 85 (Carburetor, Air filter)
SH 85-D (Carburetor, Air filter)
BG 45 (Carburetor, Air filter BG 45-Z)
BG 45 C KAT (Carburetor, Air filter BG 45)
BG 46 (Carburetor, Air filter BG 46-Z)
BG 46-D (Carburetor, Air filter BG 46-DZ)
BG 55 (Carburetor, Air filter)
BG 55 C KAT (Carburetor, Air filter)
BG 65 (Carburetor, Air filter)
BG 65-D (Carburetor, Air filter)
BG 85 (Carburetor, Air filter BG 85 | BG 85-Z)
BG 85-D (Carburetor, Air filter BG 85-DZ)
BR 45 C (Air filter, Carburetor)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
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Remove air filter cover and filter element
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Detach damaged filter housing from carburetor intake area
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Install new housing with correct alignment and sealing surfaces
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Reinstall air filter and cover
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Inspect for proper fit and airtight seal before operation
⚠️ Air intake components should be serviced carefully to prevent dirt entry into the carburetor.
Maintenance Tips
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Clean or replace air filters regularly to reduce housing wear
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Inspect housing for cracks or loose mounting during service
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Keep intake area free of debris buildup
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Always use genuine STIHL OEM air intake components for proper sealing and performance

