Description
Overview:
The Spark Plug HQT-7 Resistor is a genuine Husqvarna part designed for Honda OVH petrol engines. Built with a durable steel shell, a high-strength ceramic insulator and a nickel alloy electrode, it provides a consistent spark to support clean combustion and reliable performance. Its resistor design helps suppress electrical noise for stable running with modern ignition systems. With a 21 mm hex (0.83 inches) for standard socket fitment, it is straightforward to install during routine servicing. Ideal for engines used in construction and garden equipment, it helps maintain easy starting, smooth idling and dependable operation under load. Suited to models including HH389 and HS608, this OEM-matched plug (OEM No. 590 84 42-01) is a practical replacement for worn or fouled plugs.
Key Features:
- Genuine Husqvarna part for assured fit and performance on Honda OVH engines
- Resistor type to reduce electromagnetic interference and protect ignition electronics
- 21 mm hex (0.83 inches) for easy installation with a standard spark plug socket
- Robust construction for long service life in demanding site and garden use
- Supports reliable cold starts and smooth running across the rev range
- Consistent spark delivery to aid fuel efficiency and reduce misfires
- Suitable for routine maintenance intervals to keep equipment productive
- OEM matched to 590 84 42-01 for straightforward like-for-like replacement
Typical Applications:
Used in Honda OVH-powered machinery such as generators, pressure washers, compactors, tillers, mowers and other handheld or stationary equipment. Suitable for both site and garden environments where dependable starting and steady performance are required throughout the working day.
Also known as:
Resistor spark plug, ignition plug, engine spark plug, petrol engine plug, high-tension (HT) plug, OEM spark plug replacement.
Fits Models:
HH163MP, HH196, HH196MP, HH212, HH212OB, HH252, HH270MP, HH301, HH301EFI, HH389, HH389EFI, HH389MP, HH389OB, HH420EFI, HS123A, HS139A, HS166A, HS166AE, HS608, HV764, MX775VJ, MX800, MX800VJ31, MX825, MX825VJ33HP
Alternate Part Numbers:
59-84-42-01, 590844201, 59844201
Product Specifications
| L&S Part No. | 590 84 42 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 590844201 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Honda |
| Key Features | - Genuine Husqvarna part for Honda OVH engines - Resistor type reduces electromagnetic interference - 21 mm hex for standard socket installation - Durable steel shell and ceramic insulator - OEM matched to 590 84 42-01 for easy replacement |
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