Description
Overview:
The HQT-5 Resistor Spark Plug is a genuine Husqvarna part for petrol handheld machines such as chainsaws, brushcutters, hedge trimmers, and leaf blowers. Built with a durable plated steel shell and a high-strength ceramic insulator, it delivers a clean, reliable spark for consistent starting and smooth running. The integrated resistor helps suppress electrical interference while supporting stable ignition performance. With a 16 mm hex size for easy fitting, it is specified by Husqvarna to meet OEM performance and durability standards. This plug suits the demands of two-stroke engines commonly used in Husqvarna handheld tools, helping maintain engine efficiency and prolong service life. Husqvarna part reference 590 84 40‐01 (also listed as 590844001).
Key Features:
- Genuine Husqvarna part for assured compatibility and performance
- Resistor type to reduce radio frequency interference and improve ignition stability
- 16 mm hex size for straightforward installation with a standard plug socket
- Robust ceramic insulator and corrosion-resistant steel shell for long service life
- Supports easy cold starts and smooth acceleration under load
- Consistent spark helps reduce misfires and maintains fuel efficiency
- OEM specification ensures the correct fit and operating characteristics for Husqvarna handheld engines
- Suitable for routine servicing and preventative maintenance to protect engine components
Typical Applications:
Replacement spark plug for Husqvarna petrol handheld equipment used in landscaping, forestry, ground care, and site work. Ideal for routine servicing of two-stroke engines in chainsaws, grass trimmers, brushcutters, hedge trimmers, and blowers to restore reliable starting, stable idling, and clean combustion.
Also known as:
Engine plug, ignition plug, spark igniter, resistor plug, small-engine spark plug, two-stroke spark plug.
Alternate Part Numbers:
590844001
Product Specifications
| L&S Part No. | 590 84 40 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 590844001 |
| Unit of Sale | 1 |
| Machine Type | Handheld Construction Tools |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part ensures compatibility with handheld machines - Resistor type reduces radio frequency interference - 16 mm hex size for easy installation - Durable ceramic insulator and plated steel shell - Suitable for two-stroke engines in chainsaws and trimmers |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
