Description
Overview:
This 46 mm piston ring is a non-genuine replacement for Husqvarna chainsaws and is sold individually. Made from durable steel, it restores and maintains cylinder sealing, helping the engine hold compression for reliable starting, strong power, and clean running. It is sized to suit a 46 mm bore (1.81 inches) and is suitable for models such as the Husqvarna 357XP and 257. A practical choice for routine top-end refreshes or repairs, this ring is designed for straightforward fitting during a piston service, helping extend engine life and protect the cylinder and piston from excessive wear caused by a leaking or worn ring. A cost-effective option for workshops, arborists, and home users who service their own machines.
Key Features:
- Non Genuine Part by AIP for cost-effective maintenance
- 46 mm diameter (1.81 inches) for correct bore sizing on listed models
- Durable steel construction to withstand heat and heavy use
- Helps restore compression for easier starting and consistent power
- Smooth running and reduced blow-by when replacing worn rings
- Suitable for routine rebuilds and preventative maintenance
- Sold individually to match single-ring or multi-ring setups as required
- Simple drop-in fit during piston service with standard workshop tools
Typical Applications:
Used during top-end rebuilds and routine servicing of Husqvarna chainsaws to recover lost compression, improve throttle response, and stabilise idle. Ideal for professional forestry, tree surgery, landscaping, and DIY firewood cutting where engines see regular use. Replace when compression tests are low, starting becomes difficult, or exhaust smoke and power loss suggest ring wear.
Also known as:
Piston sealing ring, top ring, compression seal, cylinder sealing ring. Commonly referred to as an engine ring or compression ring in small two-stroke engines.
Fits Models:
257, 357XP, 51, 55, 55 Rancher
Alternate Part Numbers:
503 28 90-14, 503289014
Product Specifications
| L&S Part No. | 350 067 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Size | 46mm |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - 46 mm diameter fits Husqvarna 257, 357XP models - Durable steel construction withstands heat and heavy use - Restores compression for reliable starting and power - Suitable for routine rebuilds and preventative maintenance - Simple drop-in fit with standard workshop tools |
| Fits Models | 257 | 51 | 55 | 55 RANCHER |


