Description
Overview:
The Piston Ring for Husqvarna chainsaws is a precision engine component that seals the gap between the piston and cylinder wall to maintain compression and reduce blow‐by. This genuine Husqvarna part is made from durable, wear‐resistant metal and is engineered for dependable fit and performance in two‐stroke chainsaw engines. It is an exact replacement for models including the Husqvarna 254 and 51, helping restore lost power and efficiency caused by a worn ring. Genuine status ensures the correct profile, tension, and finish for reliable starting and clean running. OEM/MPN: 544 43 50 01 (544435001). Suitable for routine maintenance or full engine refresh when compression tests show a drop or after significant hours of use.
Key Features:
- Genuine Husqvarna part for assured compatibility and build quality
- Restores correct compression to improve power, throttle response, and cutting performance
- Helps reduce blow‐by, oil residue, and excessive exhaust smoke
- Direct replacement design for the specified models; no modifications required
- Durable construction for long service life in high‐temperature, high‐RPM use
- Precision finish supports easy bedding‐in and consistent sealing
- Suitable for routine overhaul when symptoms include hard starting or low compression
- Compatible with standard workshop tools and service procedures
Typical Applications:
Replacement during engine rebuilds or scheduled maintenance on Husqvarna chainsaws when wear, scoring, or loss of compression is present. Common after long hours of cutting, overheating events, or when cleaning carbon deposits during a top‐end refresh. Supports reliable starting, steady idle, and strong cutting under load.
Also known as:
Piston compression ring, cylinder ring, engine ring, top ring, sealing ring for two‐stroke chainsaw engines.
Fits Models:
254, 353, 353E-tech, 353G, 353G E-tech, 353GE-tech, 51
Alternate Part Numbers:
544 43 50-01, 503289011, 544435001, 501867101
Product Specifications
| L&S Part No. | 544 43 50 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 544435001 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part ensures compatibility and quality - Fits Husqvarna models 254, 353, 353E-tech, 51 - Restores compression for improved power and performance - Durable metal construction for high-temperature use - Direct replacement; no modifications needed |
| Fits Models | 254 | 51 |

