Description
Overview:
The Husqvarna HQT-4 Resistor Spark Plug is a genuine ignition component for small petrol handheld machines, including the Husqvarna 122 and 122 C. It uses a robust ceramic insulator and a steel shell to withstand heat, vibration, and fuel residues, delivering a clean, reliable spark for easy starting and steady running. As a resistor type, it helps suppress electrical interference for stable ignition performance. The 16 mm hex head allows straightforward fitting with a standard plug spanner. Marked with Manufacturer Part Number (MPN) 590 71 02-01, this plug is matched to the ignition requirements of Husqvarna 122-series tools, supporting efficient combustion, smooth throttle response, and dependable day-to-day operation. Genuine part quality ensures correct fit and consistent performance in service.
Key Features:
- Genuine Husqvarna part for assured compatibility and build quality
- Resistor design helps reduce electrical interference for stable ignition
- Reliable starting and smooth running on small 2‐stroke engines
- Durable ceramic insulator and corrosion-resistant metal shell
- 16 mm hex for easy removal and installation with a standard plug spanner
- Consistent spark delivery supports fuel efficiency and reduces misfires
- Matched to Husqvarna 122-series handheld machines for dependable performance
- Easy to fit, helping minimise downtime during routine maintenance
- Identified by MPN 590 71 02-01 for quick part verification
Typical Applications:
Ideal for routine servicing, seasonal tune-ups, and replacements on Husqvarna 122-series petrol tools. Use to restore reliable ignition on brushcutters, grass trimmers, combi engines, and hedge trimmers where the engine is hard to start, misfiring, or idling poorly. Suitable for both home users and professional operators maintaining consistent performance.
Also known as:
Engine plug, ignition plug, spark igniter, resistor spark plug, suppressed spark plug, HQT-4 plug, small engine spark plug for 2‐stroke handheld tools.
Fits Models:
122, 122 C, 122 LDx, 122 LK, 122HD45, 122R, 122RJ
Alternate Part Numbers:
590 71 02-01, 590710201
Product Specifications
| L&S Part No. | 590 71 02 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 590 71 02-01 |
| Unit of Sale | 1 |
| Applications | 122, 122 C, 122 LDx, 122 LK, 122C, 122HD45, 122LDx, 122LK, 122R, 122RJ |
| Machine Type | Brushcutters |
| Fits Brands | Husqvarna |
| Fits Models | 122HD45 | 122 C | 122 LDx | 122 LK | 122R | 122RJ |
