Description
Overview:
This Muffler/Exhaust is a genuine Stihl replacement part for professional clearing saws, designed to restore safe, quiet and efficient operation. Built from durable pressed steel with a heat‐resistant black finish, it manages exhaust flow to maintain correct back pressure, reduces noise, and directs hot gases away from the user. It is engineered specifically for Stihl FS400 and FS450 machines, giving a precise fit to the cylinder and mounting points for reliable sealing. As an OEM component (MPN/OEM No. 4128 140 0601), it matches the original specification and is suitable for frequent, heavy‐duty use in demanding environments. Replacing a worn or damaged exhaust helps protect engine performance, reduce vibration and heat build‐up, and extend the service life of your clearing saw.
Key Features:
- Genuine Stihl part for correct fit and dependable performance (OEM No. 4128 140 0601)
- Pressed steel construction with heat‐resistant coating for durability and corrosion resistance
- Reduces operating noise and routes exhaust gases safely away from the operator
- Maintains proper back pressure to support smooth running and power output
- Direct fit for specified models; uses existing fixings and gasket where applicable
- Robust design for heavy‐duty commercial and domestic clearing tasks
- Engineered to match original baffle and port layout for consistent performance
- Helps prevent heat soak to nearby components and fairings
- Reliable sealing surfaces to minimise exhaust leaks and fumes
- Straightforward replacement for worn, cracked or excessively noisy exhaust units
Typical Applications:
Ideal for routine maintenance or repair of Stihl clearing saws used in forestry, landscaping, utilities and estate management. Suits tasks such as heavy grass cutting, bracken and scrub clearance, roadside verge work, and site preparation where consistent power, controlled noise and safe exhaust direction are important.
Also known as:
Silencer, exhaust silencer, muffler assembly, exhaust box, exhaust can, exhaust outlet, exhaust unit.
Fits Models:
FS 400, FS 400-K, FS 400-L, FS 450, FS 450-K, FS 480, FS 480-K
Alternate Part Numbers:
4128-140-0601, 41281400601
Product Specifications
| L&S Part No. | 4128 140 0601 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41281400601 |
| Unit of Sale | 1 |
| Machine Type | Clearing Saws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part, OEM No. 4128 140 0601 - Fits Stihl FS400, FS450, FS480 models - Pressed steel with heat-resistant coating - Reduces noise and directs exhaust safely - Maintains correct back pressure for performance |
| Fits Models | FS400, FS450, FS480 |


