Description
Overview:
The Muffler Gasket for Stihl MS400 chainsaws is a heat‐resistant sealing gasket that sits between the exhaust muffler and the engine cylinder. Made from durable, high‐temperature gasket material, it creates a gas‐tight seal to prevent exhaust leaks, helping maintain stable power, clean running, and consistent idle. This is a Genuine Stihl part (MPN 1140 149 0602) engineered for an accurate fit on Stihl MS400 and MS400C models. A sound seal helps reduce noise and exhaust blow‐by, protects the cylinder face from hot gases, and supports overall engine efficiency. It is a routine service item that should be replaced if the old gasket is compressed, damaged, or removed during muffler maintenance, ensuring reliable performance and longevity of the saw.
Key Features:
- Genuine Stihl part for correct fit and dependable performance
- Heat‐resistant construction for high exhaust temperatures
- Provides a secure, gas‐tight seal to prevent exhaust leaks
- Helps maintain power output, throttle response, and idle stability
- Supports lower noise levels and cleaner exhaust routing
- Precisely cut to match the MS400 exhaust port and bolt spacing
- Robust, crushable design to accommodate thermal cycling
- Straightforward replacement during routine servicing or repairs
Typical Applications:
Used when refitting or replacing the muffler during servicing, after carbon cleaning, or whenever exhaust leaks are found. Ideal for restoring a proper seal if the old gasket is brittle, torn, missing, or showing soot marks around the exhaust joint. Helps maintain safe, efficient operation in forestry, arborist work, firewood processing, and site maintenance.
Also known as:
Often referred to as a silencer gasket, exhaust port gasket, exhaust flange gasket, silencer seal, or chainsaw exhaust seal. These terms describe the same sealing component fitted between the cylinder exhaust outlet and the muffler body on petrol chainsaws.
Fits Models:
MS400, MS400C
Alternate Part Numbers:
1140 149 0602, 1140-149-0602, 11401490602
Product Specifications
L&S Part No. | 1140 149 0602 |
---|---|
Part Type | Genuine Part |
Manufacturer | Stihl |
OEM No. | 11401490602 |
Unit of Sale | 1 |
Applications | MS400, MS400C |
Machine Type | Chainsaws |
Fits Brands | Stihl |
Fits Models | MS400C |