Description
Overview:
The Piston Ring Ø 40 x 1.2 mm for Stihl MS 201 chainsaws is a Genuine Part designed to restore and maintain cylinder sealing in two‐stroke engines. Made from high‐quality, wear‐resistant metal, it provides a precise fit in a 40 mm bore to help retain compression, minimise blow‐by, and support clean combustion. This ring is engineered for Stihl professional and domestic saws, including the MS 201 and MS201C, where reliable starting, steady idle, and consistent cutting power are essential. Supplied to OEM specification (OEM No. 1145 034 3001), it is a direct replacement that helps extend engine life when carrying out routine maintenance or a top‐end refresh. Size: 40 mm diameter x 1.2 mm thickness.
Key Features:
- Genuine Stihl replacement part for assured fit and compatibility (Genuine Part)
- OEM reference: 1145 034 3001 for easy identification
- 40 mm diameter x 1.2 mm thickness for the correct bore and groove size
- Maintains compression and power, aiding reliable starting and throttle response
- Helps reduce emissions and fuel waste by improving combustion efficiency
- Direct-fit design for straightforward installation with standard workshop tools
- Durable, wear-resistant construction for long service intervals
- Matches Stihl tolerances to minimise scoring and premature wear
- Suitable for preventative maintenance or top-end rebuilds on compatible saws
Typical Applications:
Used during routine servicing or repairs of Stihl MS 201 series chainsaws when compression is low, the cylinder has been honed, or after piston/ring wear. Common in forestry, arborist work, landscaping, estate management, and general cutting tasks where dependable engine performance and clean running are required.
Also known as:
Compression ring, top ring, 40 mm cylinder ring, engine sealing ring for Stihl 40 mm bore, MS 201 series compression ring, 1.2 mm ring for two‐stroke chainsaw engines.
Fits Models:
MS 201, MS201, MS201C, MS201T, MS201TC
Alternate Part Numbers:
1145 034 3001, 1145-034-3001, 11450343001
Product Specifications
| L&S Part No. | 1145 034 3001 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11450343001 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with MS 201 chainsaws - 40 mm diameter x 1.2 mm thickness for precise fit - OEM reference 1145 034 3001 for easy identification - Enhances compression and combustion efficiency - Durable metal construction for extended service life |
| Fits Models | MS201, MS201C, MS201T, MS201TC |
