Description
Overview:
The Stihl 34 mm (1.34 in) piston is a Genuine OEM replacement designed to restore compression and performance in compatible Stihl two‐stroke engines, including the FS75 and FR85 brushcutters. Manufactured from high‐grade aluminium alloy for low weight and efficient heat transfer, it helps the engine run smoothly under continuous use. A correct‐size piston is critical for sealing the combustion chamber, maintaining power, and reducing fuel waste. This part is engineered to match the original specification in both diameter and form, giving a reliable fit with the corresponding cylinder and associated hardware. Ideal for routine overhaul or repair after wear or scoring, it provides a dependable, like‐for‐like solution that supports the longevity of your Stihl landscaping and brushcutting tools.
Key Features:
- Genuine Stihl OEM part for assured compatibility and reliability (4137 030 2010)
- 34 mm diameter (1.34 in) for precise fit in specified Stihl cylinders
- Aluminium alloy construction for durability and effective heat dissipation
- Precision-machined surfaces to help restore compression and power
- Direct replacement for straightforward installation using standard workshop practices
- Supports easier starting, stable idling, and consistent cutting performance
- Suitable for preventative maintenance or repair after piston/cylinder wear
- Built to withstand typical two-stroke operating temperatures and loads
Typical Applications:
Used to replace a worn or damaged piston in Stihl two-stroke engines fitted to brushcutters, hedge trimmers, pole pruners, blowers, kombi engines, and similar tools. Common during engine rebuilds addressing low compression, hard starting, loss of power, or scoring. Suitable for professional grounds care, landscaping, estate management, agriculture, and site maintenance where reliable daily operation is required.
Also known as:
Two-stroke piston, 34 mm engine piston, replacement piston for cylinder assembly, reciprocating piston for brushcutter engine, small engine piston for Stihl handheld power equipment.
Fits Models:
BG 75, BG75, FC 73, FC 75, FC 85, FC73, FC75, FC85, FH 75, FH75, FR 85, FR 85 T, FR85, FR85T, FS 75, FS 80, FS 80 R, FS 85, FS 85 R, FS 85 RX, FS 85 T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL 75, HL 75 K, HL75, HL75K, HS 75, HS 80, HS 85, HS75, HS80, HS85, HT 70, HT 75, HT70, HT70K, HT75, KA 85 R, KA85R, KA85R Attachment, KM 85, KM 85 R, KM85, KM85R, KR 85, KR85, KR85 Attachment, KW 85, KW85, SP 80, SP 80 K, SP 81, SP 85, SP 85 K, SP80, SP80K, SP81, SP85, SP85K
Alternate Part Numbers:
4137-030-2010, 41370302010
Product Specifications
| L&S Part No. | 4137 030 2010 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41370302010 |
| Unit of Sale | 1 |
| Applications | BG 75, BG75, FC 73, FC 75, FC 85, FC73, FC75, FC85, FH 75, FH75, FR 85, FR 85 T, FR85, FR85T, FS 75, FS 80, FS 80 R, FS 85, FS 85 R, FS 85 RX, FS 85 T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL 75, HL 75 K, HL75, HL75K, HS 75, HS 80, HS 85, HS75, HS80, HS85, HT 70, HT 75, HT70, HT70K, HT75, KA 85 R, KA85R, KA85R Attachment, KM 85, KM 85 R, KM85, KM85R, KR 85, KR85, KR85 Attachment, KW 85, KW85, SP 80, SP 80 K, SP 81, SP 85, SP 85 K, SP80, SP80K, SP81, SP85, SP85K |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Fits Models | FS75, FS80, FS85 | HS75 | BG75 | FR85T, FR85 | HT70, HT70K, HT75 | KM85, KM85R | KA85R Attachment | KR85 Attachment | KW 85 | FC 73 | FC 75 | FC 85 | HL75, HL75K | HS80 | HS85 | FH75 | SP 85 |
