Description
Overview:
This muffler/exhaust is a genuine Stihl replacement part for the MS 311 and MS 391 chainsaws. Built from durable metal, it manages exhaust flow and reduces engine noise, helping the saw run smoothly and efficiently. Correct exhaust backpressure is important for a two‐stroke engine, and this unit is engineered to deliver reliable performance while directing gases safely away from the operator. It is a like‐for‐like replacement for worn, damaged, or excessively noisy mufflers and is suitable for both professional and domestic users who need dependable operation from their Stihl chainsaw. OEM Part No. 1140 140 0653 ensures the right fit and function, restoring factory performance without modification.
Key Features:
- Genuine Stihl OEM part for assured compatibility and reliability
- OEM Part No. 1140 140 0653; direct replacement for the original exhaust
- Robust metal construction to withstand heat, vibration, and regular use
- Designed to manage exhaust flow and maintain correct engine backpressure
- Helps reduce noise levels for more comfortable operation
- Directs fumes away from the user and cutting area
- Factory-correct mounting points align with the cylinder and shrouds
- Fits without modification and installs using standard hand tools
- Supports consistent power output and smooth running
- Suitable for routine maintenance or repair after impact or corrosion
Typical Applications:
Used on Stihl chainsaws in forestry, arboriculture, landscaping, agriculture, and grounds maintenance. Ideal when the existing muffler is cracked, corroded, blocked with carbon deposits, or causing excessive noise or loss of power. Restores safe exhaust direction and stable engine performance during felling, snedding, pruning, firewood processing, and general property maintenance.
Also known as:
Silencer, exhaust, exhaust muffler, exhaust box, exhaust canister, exhaust assembly, exhaust outlet, noise suppressor.
Fits Models:
MS 311, MS 391, MS311, MS391
Alternate Part Numbers:
1140-140-0653, 11401400653
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