Description
Overview:
This 37mm piston ring is a genuine Stihl replacement part for small petrol chainsaws, designed to restore correct engine compression and reliable running. Built from a high-grade metal alloy for durability under heat and load, it seals the combustion chamber to reduce blow‐by and maintain performance. Sized at 37 mm diameter x 1.2 mm thickness, it fits Stihl compact saw engines such as the MS 170 and MS 171 that use a 37 mm bore. A worn or damaged ring can cause hard starting, loss of power, and uneven idle; replacing it during a top‐end service helps protect the cylinder and piston from accelerated wear. Direct replacement for OEM Part No. 1130 034 3003, ensuring correct fit and compatibility.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- 37 mm x 1.2 mm size matches original specification for listed models
- Helps restore proper compression for easier starting and consistent power
- Durable construction for sustained use in high‐temperature two‐stroke engines
- Made to OEM tolerances to support reliable sealing and longevity
- Suitable for routine top‐end maintenance and ring replacement schedules
- Direct replacement for OEM references including 1130 034 3003
- Straightforward installation for competent DIY users and workshops
Typical Applications:
Used during chainsaw top‐end rebuilds or routine maintenance when compression has dropped due to ring wear or sticking. Suitable for resolving symptoms such as hard starting, poor throttle response, and reduced cutting performance. Common in workshop overhauls, field repairs, and scheduled servicing of Stihl homeowner and arborist saws with a 37 mm bore.
Also known as:
Compression ring, cylinder ring, engine ring, top ring, bore ring, sealing ring for two‐stroke chainsaw engines.
Fits Models:
017, MS 170, MS 170 C, MS 171, MS 171 C, MS 192, MS 192 C, MS 192 T, MS 192 TC
Alternate Part Numbers:
1130-034-3003, 11300343003
Product Specifications
| L&S Part No. | 1130 034 3003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11300343003 |
| Unit of Sale | 1 |
| Size | 37mm |
| Applications | 017, MS 170, MS 170 C, MS 171, MS 171 C, MS 192, MS 192 C, MS 192 T, MS 192 TC, MS170, MS170C, MS171, MS171C, MS192, MS192C, MS192T, MS192TC |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS170, MS170C | MS192C, MS192T, MS192TC | MS171, MS171C | 017 |
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