Description
Overview:
This Cylinder Gasket is a genuine Stihl part for two-stroke engines used in tools such as the SP 400 and SP 450. It sits between the crankcase and the cylinder barrel to create an airtight, fuel-tight seal that maintains correct compression and prevents leaks. Made from a heat, fuel and oil resistant gasket composite, it is profile-cut to match the engine ports and bolt pattern for a precise fit. Using the correct base gasket helps protect performance, starting, and engine longevity by preserving crankcase pressure and preventing unmetered air ingress. It is suitable for routine maintenance and top-end rebuilds on a range of Stihl brushcutters, clearing saws and similar machines listed below. Genuine Stihl quality ensures reliable sealing and consistent performance.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- Precision-cut base gasket for accurate alignment and sealing
- Resistant to petrol, oil, heat and vibration for long service life
- Helps maintain correct compression and crankcase pressure
- Reduces risk of air leaks, power loss and poor starting
- Supports stable idle, throttle response and fuel efficiency
- Fits without modification on the listed Stihl models
- Ideal for piston/ring work, decoking and cylinder removal tasks
- Supports reliable operation in trade, agricultural and grounds care use
- Replaces Stihl part numbers 4128-029-2300 and 41280292300
Typical Applications:
Used when refitting the cylinder after piston or ring replacement, decarbonising the top end, resolving air leaks, or during full engine overhauls. Suitable for professional maintenance of brushcutters and clearing saws, as well as DIY repairs to restore lost compression, improve starting, and prevent fuel or oil seepage in demanding site, farm and landscaping environments.
Also known as:
Cylinder base gasket, engine base gasket, crankcase-to-cylinder gasket, barrel gasket, cylinder-to-crankcase seal, two‐stroke cylinder gasket, engine sealing gasket for Stihl 2‐stroke units.
Fits Models:
FR 350, FR 450, FR 480, FR 480 C, FS 400, FS 450, FS 480, SP 400, SP 450, SP 451, SP 481
Alternate Part Numbers:
4128-029-2300, 41280292300
Product Specifications
| L&S Part No. | 4128 029 2300 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41280292300 |
| Unit of Sale | 1 |
| Applications | FR 350, FR 450, FR 480, FR 480 C, FR350, FR450, FR480, FR480C, FS 400, FS 450, FS 480, FS400, FS450, FS480, SP 400, SP 450, SP 451, SP 481, SP400, SP450, SP451, SP481 |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Fits Models | FS400, FS450, FS480 | FR350, FR450, FR480, FR480C | SP 481 |
