Description
Overview:
This 42 mm piston ring is a genuine Stihl OEM part for two‐stroke brushcutters, including the Stihl FS260 R and FS261 C‐E. It is a precision metal ring designed to seal the gap between the piston and cylinder wall, maintaining correct compression and helping the engine produce consistent power. Made from durable, heat‐resistant materials suited to high‐revving small engines, it withstands friction and thermal cycling in daily use. With its exact 42 mm (1.65 inches) diameter, it fits the specified Stihl top end without modification. Choosing a Genuine Part helps preserve reliability, fuel efficiency and starting performance, making this piston ring a sensible replacement during routine maintenance or a top‐end refresh on demanding cutting and clearing work.
Key Features:
- Genuine Stihl OEM part for trusted fit and performance (OEM No. 4147 034 3004)
- Exact 42 mm (1.65 inches) diameter for correct end‐gap and sealing
- Precision-ground profile to maintain stable compression and power output
- Built from wear‐ and heat‐resistant materials for long service life
- Helps restore easy starting, strong acceleration and steady idle
- Supports fuel efficiency by minimising blow‐by and loss of compression
- Compatible with a wide range of Stihl brushcutters and clearing saws
- Suitable for scheduled maintenance or top‐end rebuilds
- Smooth seating on the correct piston/cylinder when installed properly
- Designed to work with the original Stihl piston and cylinder tolerances
Typical Applications:
Used to replace a worn or broken piston ring in Stihl two‐stroke brushcutters and clearing saws. Common during top‐end overhauls when compression has dropped, after heavy seasons of cutting dense grass, brambles or scrub, or when addressing hard starting and loss of power. Suitable for landscapers, groundskeepers, forestry crews, farmers and estate maintenance teams.
Also known as:
Piston compression ring, cylinder compression ring, engine sealing ring, replacement piston ring, two‐stroke piston ring.
Fits Models:
FR 410 C, FR 460 TC, FR410C, FR460TC, FS 240, FS 260, FS 260 C-E, FS 260 R, FS 261 C-E, FS 360 C, FS 410 C, FS 410 C-E, FS 410 C-EM, FS240, FS260, FS260C-E, FS260CE, FS260R, FS261C-E, FS261CE, FS360C, FS410C, FS410C-E, FS410C-EM, FS410CE
Alternate Part Numbers:
4147-034-3004, 41470343004
Product Specifications
| L&S Part No. | 4147 034 3004 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41470343004 |
| Unit of Sale | 1 |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM part for FS260 R and FS261 C-E - Exact 42 mm diameter ensures correct fit and sealing - Heat-resistant materials for durability in high-revving engines - Supports fuel efficiency by minimising compression loss - Compatible with various Stihl brushcutters and clearing saws |
| Fits Models | FS360C FS410C | FR410C, FR460TC | FS240, FS260 | FS411 C-EM |
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