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Description
1140 140 0651 – STIHL Muffler (Genuine OEM Part)
The STIHL 1140 140 0651 Muffler is a genuine OEM exhaust component designed to properly manage exhaust flow and noise while maintaining optimal engine performance. Built to STIHL factory specifications, this muffler ensures correct back pressure, efficient exhaust routing, and reliable operation under demanding cutting conditions.
This OEM muffler installs directly onto the cylinder/muffler assembly with precise fitment, helping protect the engine and maintain proper operating temperatures.
Product Details
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Manufacturer Part Number: 1140 140 0651
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Brand: STIHL
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Part Name: Muffler
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OEM Status: Genuine STIHL OEM
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Condition: New
Key Benefits
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Controls exhaust noise while maintaining correct engine back pressure
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Supports efficient exhaust flow for consistent power output
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Manufactured to STIHL OEM tolerances for exact fit
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Durable construction for long service life
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Direct replacement – no modifications required
Applications & Compatibility
This muffler is used on the following STIHL chainsaw models:
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MS 391 – Cylinder / Muffler assembly
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MS 311 – Cylinder / Muffler assembly
(Always verify compatibility using your STIHL model and serial number before ordering.)
The STIHL 1140 140 0651 Muffler is an ideal replacement for worn or damaged exhaust components, helping restore factory performance, reduce noise, and ensure safe, efficient operation of your chainsaw.
