Description
Overview:
The Piston Ring for Stihl TS 410 and TS 420 disc cutters is a genuine Stihl replacement that restores correct sealing between the piston and cylinder. Made from a high‐grade metal alloy with a precision finish, it is built to withstand high temperatures, side loads, and continuous duty on site. By maintaining a tight seal in the combustion chamber, it preserves compression, reduces blow‐by and oil consumption, and supports smooth running and reliable power. Manufactured to OEM specifications for a precise fit in the ring groove, it helps prevent scoring and premature wear when installed correctly. Suitable for routine servicing or top‐end refreshes on professional and DIY machines alike. OEM reference: 4238 034 3000. Genuine Stihl part.
Key Features:
- Genuine Stihl part for assured compatibility and reliability (OEM ref. 4238 034 3000)
- Built to OEM tolerances for an exact fit in TS 410/TS 420 engines
- Durable metal alloy resists wear, heat, and scoring in heavy use
- Maintains cylinder compression for easier starting and consistent cutting performance
- Helps reduce oil consumption and visible exhaust smoke from worn rings
- Supports smoother running and stable idle by improving combustion sealing
- Straightforward to install during routine service with standard workshop tools
- Suitable for preventative maintenance or full top‐end rebuilds to extend engine life
Typical Applications:
Used during scheduled maintenance or engine rebuilds to restore compression and performance on Stihl disc cutters working with concrete, masonry, tarmac, and paving. Suitable when addressing hard starting, loss of power, excessive smoke, or increased fuel and oil use, and whenever piston or cylinder work indicates ring replacement is required.
Also known as:
Engine compression ring, cylinder sealing ring, disc cutter compression ring, cut‐off saw piston seal, compression ring for Stihl cut‐off saw engines.
Fits Models:
TS 410, TS 410-A, TS 410-AZ, TS 410-Z, TS 420, TS 420-A, TS 420-AZ, TS 420-Z, TS410, TS410A, TS410Z, TS420, TS420A, TS420Z
Alternate Part Numbers:
4238 034 3000, 4238-034-3000, 42380343000
Product Specifications
| L&S Part No. | 4238 034 3000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42380343000 |
| Unit of Sale | 1 |
| Machine Type | Disc Cutters |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part, OEM ref. 4238 034 3000 - Fits Stihl TS 410 and TS 420 models - High-grade metal alloy resists wear and heat - Maintains cylinder compression for consistent performance - Suitable for routine servicing or top-end rebuilds |
| Fits Models | TS410, TS420 |

