Description
Overview:
The Cylinder Gasket 1 mm for Stihl chainsaws is a Genuine Stihl part designed to seal the joint between the cylinder base and the crankcase. Made from a heat-, fuel- and oil-resistant composite material, it provides a reliable, airtight seal that helps maintain correct compression and smooth running. This gasket is engineered for the Stihl MS 260 and MS 260 C, matching the original factory specification for a precise fit. With a 1 mm thickness, it suits standard rebuilds and routine maintenance where accurate cylinder height and consistent sealing are required. It is suitable for professional and domestic users carrying out repairs, top-end servicing, or cylinder replacements on compatible saws. OEM Part No. 1121 029 2305.
Key Features:
- Genuine Stihl OEM gasket (1121 029 2305) for assured compatibility and fit
- 1 mm thickness for accurate cylinder height and effective sealing
- Durable composite resists heat, fuel, oil, and vibration in two‐stroke engines
- Precision-cut holes align with ports, studs, and fasteners; no modification needed
- Helps prevent air leaks, supporting stable idle, reliable starting, and consistent power
- Maintains correct compression after cylinder or piston service
- Straightforward to install during top-end maintenance or rebuilds
- Suitable replacement for worn, damaged, or crushed base gaskets
- Supports long service life when fitted to clean, flat mating surfaces
Typical Applications:
Used during cylinder and piston replacements, top-end rebuilds, decarbonising, or leak repairs on compatible Stihl chainsaws. Ideal when reassembling the cylinder to the crankcase after inspection or service, or when resolving hard starting, erratic idle, or loss of power caused by base gasket leaks.
Also known as:
Cylinder base gasket, barrel base gasket, engine base seal, crankcase-to-cylinder gasket, cylinder seal, gasket replacement for Stihl two‐stroke chainsaws.
Fits Models:
026, MS 260, MS 260 C, MS260, MS260C
Alternate Part Numbers:
1121-029-2305, 11210292305
Product Specifications
| L&S Part No. | 1121 029 2305 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11210292305 |
| Unit of Sale | 1 |
| Applications | 026, MS 260, MS 260 C, MS260, MS260C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS260, MS260C | 026 |
