Description
Overview:
This genuine Stihl cylinder with piston is a direct OEM replacement for the top end of selected Stihl two‐stroke brushcutters and clearing saws, including the FS 400 and FS 450. The 40 mm bore (1.57 in) cylinder features a robust aluminium alloy body with cooling fins and a precision‐machined bore to restore compression and smooth running. The matched piston is engineered to work with the cylinder porting for dependable starting, strong torque and consistent idle. Supplied under Manufacturer Part Number (MPN) 4128 020 1201, it is built for reliability in demanding, long‐hour use. Fit it during a top‐end rebuild to address wear, scoring, or loss of power and return your machine to stable daily service.
Key Features:
- Genuine Stihl OEM component for assured quality and exact fit (MPN 4128 020 1201).
- 40 mm bore (1.57 in) with matched piston for correct compression and power recovery.
- Finned aluminium construction promotes effective air‐cooling in continuous use.
- Precision‐machined surfaces support smooth running and reduced vibration.
- Direct replacement for worn or scored top ends; straightforward to install with standard workshop tools.
- Helps restore starting performance, throttle response and fuel efficiency.
- Suitable for heavy‐duty grounds maintenance and forestry clearing tasks.
- Supplied as a cylinder and piston assembly for a consistent, reliable rebuild.
Typical Applications:
Used during engine overhauls when compression has dropped, starting is difficult, or the original cylinder shows scoring. Ideal for restoring performance on brushcutters and clearing saws used in landscaping, estate and local authority maintenance, roadside and forestry work, and construction site clearance where reliable daily operation is essential.
Also known as:
Cylinder kit, top‐end kit, barrel and piston, pot and piston, bore kit, top‐end rebuild set, jug and piston, top cylinder assembly for two‐stroke engines.
Fits Models:
FS 400, FS 450, FS 480, SP 400, SP 450
Alternate Part Numbers:
4128-020-1201, 41280201201
Product Specifications
| L&S Part No. | 4128 020 1201 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41280201201 |
| Unit of Sale | 1 |
| Applications | FS 400, FS 450, FS 480, FS400, FS450, FS480, SP 400, SP 450, SP400, SP450 |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Fits Models | FS400, FS450, FS480 |
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