Description
Overview:
The Spark Plug HQT-9 Resistor is a genuine Husqvarna part designed to deliver reliable ignition in small petrol engines. Built with a robust metal shell and a durable ceramic insulator, it provides consistent spark quality for smooth starting and steady running. This resistor-type plug helps suppress electrical interference, protecting sensitive electronics on modern equipment. It is specified for Honda OHV and DOV engines and is also suitable for many Briggs & Stratton and Kohler OHV applications used across garden and construction machinery. A 16 mm hex allows straightforward installation with a common plug socket. Chosen for its long service life and stable performance, this plug is a smart maintenance replacement for keeping engines efficient and easy to start.
Key Features:
- Genuine Husqvarna part for OEM-level fit and performance
- Resistor design helps reduce electrical interference for stable ignition
- 16 mm hex for easy fitting and removal with a standard plug socket
- Built for durability to withstand heat, vibration, and fuel residues
- Consistent spark for easier starting, smoother running, and efficient combustion
- Suitable for Honda OHV and DOV engines, plus many Briggs & Stratton and Kohler OHV engines
- Reliable sealing around the insulator to resist moisture and fouling
- Versatile replacement choice for a wide range of lawn and garden machinery
Typical Applications:
Ideal for routine servicing and repairs of equipment powered by Honda OHV and DOV engines, as well as compatible Briggs & Stratton and Kohler units. Common uses include walk-behind and ride-on lawnmowers, garden tractors, generators, pumps, pressure washers, scarifiers, rotavators, and compact construction tools where dependable ignition is essential.
Also known as:
Often referred to as an ignition plug, engine spark plug, or spark igniter. You may also see it described as a resistor plug or HQT-9 plug in parts lists and service documentation for small engines.
Fits Models:
DOV, OHV
Alternate Part Numbers:
590 84 44-01, 590844401
Product Specifications
L&S Part No. | 590 84 44 01 |
---|---|
Part Type | Genuine Part |
Manufacturer | Husqvarna |
OEM No. | 590844401 |
Unit of Sale | 1 |
Applications | DOV, OHV |
Machine Type | Engines |
Fits Brands | Husqvarna |