Description
Overview:
This Genuine Husqvarna carburettor is a direct-fit replacement for the fuel system on selected professional brushcutters, including the 555FRM and 555FX. Built around a durable aluminium alloy body with fuel‐resistant seals, it meters the air-fuel mixture precisely so your 2‐stroke engine starts reliably, idles steadily, and pulls cleanly under load. It is designed for heavy site, forestry and estate work where consistent performance matters. Supplied to Husqvarna OEM specification (OEM No. 546 44 42-01, MPN 546444201), it restores correct fueling when the original unit is worn, blocked or damaged. Suitable for routine maintenance or a like‐for‐like replacement to resolve hard starting, poor throttle response or stalling, it helps keep your brushcutter working efficiently and within the manufacturer's setup range.
Key Features:
- Genuine Husqvarna part for assured fit and quality (OEM No. 546 44 42-01, MPN 546444201)
- Direct replacement for selected 555‐series brushcutters, avoiding modification
- Precise fuel metering for easier starting, stable idle and smooth acceleration
- Robust aluminium alloy construction with fuel‐resistant components for long service life
- Supports dependable performance in demanding, dusty and high‐vibration environments
- Can help resolve symptoms such as surging, bogging, flooding or poor top‐end power
- Compatible with standard 2‐stroke mixture as specified by Husqvarna for these models
- Straightforward to fit with basic tools; may require routine idle/mixture tuning to suit local conditions
- Maintains engine efficiency when the original carburettor is beyond cleaning or repair
- Backed by Husqvarna's manufacturing standards for consistency and reliability
Typical Applications:
Restoring correct fueling and performance on forestry clearing saws and heavy‐duty brushcutters used for cutting dense grass, scrub and small saplings. Ideal for professional landscaping, utilities vegetation control, estate maintenance, and hire fleet upkeep where reliable starting, clean pickup and consistent output are essential throughout the working day.
Also known as:
Carb, carburetor (US spelling), carburettor assembly, fuel metering unit, mixer body, fuel mixer. These terms refer to the same component that manages the air-fuel ratio on 2‐stroke engines used in brushcutters and clearing saws.
Fits Models:
555FRM, 555FX, 555FXT, 555RXT
Alternate Part Numbers:
586 10 88-01, 546444201, 586108801
Product Specifications
| L&S Part No. | 546 44 42 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 546444201 |
| Unit of Sale | 1 |
| Machine Type | Brushcutters |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part, OEM No. 546 44 42-01 - Direct replacement for 555FRM, 555FX brushcutters - Aluminium alloy body with fuel-resistant seals - Precise fuel metering for reliable engine performance - Suitable for demanding, high-vibration environments |
| Fits Models | 555FRM | 555FX | 555FXT | 555RXT |
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