Description
Overview:
This Piston Ring 34 x 1.2 mm is a genuine Stihl OEM component designed to restore and maintain correct cylinder compression in small two-stroke engines. Manufactured from robust, wear‐resistant steel for long service life, the ring provides a precise seal between the piston and cylinder wall to support easy starting, steady idle, and full power under load. It is sized for 34 mm bore cylinders and is a direct replacement for Stihl machines that use the 4144 series top end, including popular handheld tools such as the HT56C pole pruner and FS38 grass trimmer. Supplied to the original specification under MPN 4144 034 3000, it offers a dependable fit and performance when refurbishing engines or replacing a worn or broken ring.
Key Features:
- Genuine Stihl part for assured compatibility and reliability (MPN: 4144 034 3000)
- Precision dimensions: 34 mm diameter x 1.2 mm thickness for correct end gap and sealing
- Durable, wear‐resistant steel construction for consistent compression over many hours of use
- Helps restore power, reduces blow‐by, and supports cleaner combustion
- Smooth running and improved starting when replacing a worn or damaged ring
- Engineered to OEM tolerances for a snug, accurate fit in the cylinder groove
- Suitable for a wide range of Stihl blowers, trimmers, brushcutters, hedge trimmers, and kombi tools
- Straightforward replacement for routine engine maintenance or rebuilds
Typical Applications:
Used during routine servicing or engine rebuilds to replace a worn piston ring in Stihl handheld machines. Ideal when compression is low, starting becomes difficult, or power has dropped under load. Commonly fitted to grass trimmers, brushcutters, blowers, hedge trimmers, pole pruners, mistblowers, and Kombi engines that share the 34 mm bore top end.
Also known as:
Compression ring, cylinder ring, engine ring, piston compression ring, top ring, 34 mm piston ring, 34 x 1.2 mm ring for small two‐stroke engines.
Fits Models:
BG50, BG56, BG56C, BG66, BG66C, BG86, BG86C, BR200, FC 55 DZ, FC55DZ, FC 56, FC56, FC56C, FS36, FS38, FS40, FS40C, FS44, FS45, FS45C, FS45L, FS46, FS46C, FS50, FS50C, FS55, FS55C, FS55R, FS56, FS56C, FS56R, FS56RC, HL56K, HS45, HT56 C, HT56C, KM55, KM55C, KM55R, KM55RC, KM56C, KM56RC, SH56, SH56C, SH86, SH86C, SR 200, SR 200-D, SR 200-Z, SR200, SR200-D, SR200-Z, SR200D, SR200Z
Alternate Part Numbers:
4144-034-3000, 41440343000
Product Specifications
| L&S Part No. | 4144 034 3000 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41440343000 |
| Unit of Sale | 1 |
| Applications | BG50, BG56, BG56C, BG66, BG66C, BG86, BG86C, BR200, FC 55 DZ, FC 56, FC55DZ, FC56, FC56C, FS36, FS38, FS40, FS40C, FS44, FS45, FS45C, FS45L, FS46, FS46C, FS50, FS50C, FS55, FS55C, FS55R, FS56, FS56C, FS56R, FS56RC, HL56K, HS45, HT56 C, HT56C, KM55, KM55C, KM55R, KM55RC, KM56C, KM56RC, SH56, SH56C, SH86, SH86C, SR 200, SR 200-D, SR 200-Z, SR200, SR200-D, SR200-Z, SR200D, SR200Z |
| Machine Type | Brushcutters, Pole Pruners, Blower/Shredders, Backpack Blowers, Mist Blowers |
| Fits Brands | Stihl |
| Fits Models | FS36, FS40, FS44 | FS38, FS45, FS46 | FS40, FS50 | FS55, FS55C, FS55R | FS56, FS56C, FS56R | BG56 | HS45 | BG66 | BG86 | BR200 | SH56, SH86 | BG50 | HT56 C | KM55, KM55C, KM55R, KM55RC | KM56C, KM56RC | FC 55 DZ | FC 56 | SR 200 | SR 200-D | SR 200-Z | HL56K |
Reviews
Ask a Question
Compatibility
Customers also bought
Related Products
-
![]()
Set of Gaskets for Stihl FS40, FS40C - 4144 007 1012£13.42 £11.18
