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Description
4229 140 6905 STIHL Stub with Screen – Genuine OEM Muffler Part
The STIHL Stub with Screen (4229 140 6905) is a genuine OEM exhaust component designed to restore proper muffler function and safe exhaust flow across a range of STIHL handheld blowers, sprayers, and shredder vac units. This part serves as an exhaust outlet stub equipped with an integrated spark arrestor screen to help reduce the risk of sparks exiting the muffler during operation.
Over time, exhaust stubs and screens may become clogged with carbon buildup, damaged by heat, or worn from prolonged use. A restricted or broken screen can cause reduced engine power, poor throttle response, overheating, or unsafe exhaust discharge. Replacing it with the correct OEM part helps restore proper exhaust performance without replacing the entire muffler assembly.
Manufactured to STIHL factory specifications, this genuine stub with screen ensures correct fitment, durability, and long-term reliability under professional operating conditions.
Product Details
OEM Part Number: 4229 140 6905
Brand: STIHL (Genuine OEM)
Part Type: Stub with Screen (Spark Arrestor Exhaust Outlet)
Application: Muffler exhaust system
Condition: New Genuine OEM Part
Function
This STIHL stub with screen is designed to:
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Direct exhaust gases safely out of the muffler
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Provide spark arrestor protection during operation
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Reduce carbon debris discharge
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Maintain proper engine exhaust backpressure
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Replace clogged, damaged, or missing muffler outlet screens
⚠️ A failing or clogged exhaust screen can cause power loss, overheating, or unsafe exhaust operation.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4229 140 6905
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Your unit model matches those listed below
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Application matches your STIHL illustrated parts diagram
⚠️ Exhaust outlet components are model-specific — always verify by OEM part number and muffler configuration.
Compatibility
This OEM stub with screen fits many STIHL blower, shredder vac, and sprayer models used with specific ignition and muffler systems, including:
Blowers / Shredder Vac Units
BR 200 (Ignition system, Muffler)
BG 56 C-E (Ignition system, Muffler)
BG 85 (Ignition system, Muffler BG 85-Z)
BG 86 (Ignition system, Muffler BG 86 C-E Z, BG 86-Z)
BG 86 C-E (Ignition system, Muffler BG 86 C-E Z, BG 86-Z)
SH 56 C-E (Ignition system, Muffler)
SH 85 (Ignition system, Muffler)
SH 86 C-E (Ignition system, Muffler)
Sprayers
SR 200 (Ignition system, Muffler)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
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Allow muffler to cool completely before service
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Remove muffler outlet fasteners if required
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Replace stub with screen in correct orientation
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Ensure screen is seated properly and unobstructed
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Reassemble muffler components securely
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Test engine for proper exhaust flow and performance
⚠️ Muffler service should be performed carefully to avoid burns or improper exhaust sealing.
Maintenance Tips
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Inspect spark arrestor screen regularly for carbon buildup
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Clean screen as recommended by STIHL service intervals
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Replace damaged or clogged screens to prevent overheating
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Always use genuine STIHL OEM exhaust components for proper fit and safety
