Description
Overview:
The Spark Plug HQT-1 is a genuine Husqvarna ignition component for two-stroke handheld machines, including chainsaws such as the Husqvarna 460 and 461. Built with a plated steel shell, a heat-resistant ceramic insulator, and durable electrode materials, it delivers a reliable spark to ignite the air-fuel mix. This supports easy cold starts, smooth running and consistent power under load. The plug uses a 19 mm hex for straightforward fitting and removal with a standard socket. As an OEM part, it matches the original specification for correct reach and heat characteristics, helping protect the engine from misfire and fouling. It is a practical service item for keeping your saw performing well in demanding forestry, landscaping and domestic cutting tasks.
Key Features:
- Genuine Husqvarna part for assured compatibility and performance
- Optimised for Husqvarna two-stroke chainsaws and handheld machines
- 19 mm hex head for easy access and removal with common sockets
- Robust steel shell and ceramic insulator for heat and vibration resistance
- Consistent ignition for quick starts, stable idling and clean acceleration
- Helps maintain fuel efficiency and power when serviced at recommended intervals
- Corrosion-resistant construction for dependable service life in outdoor conditions
- Direct replacement for HQT-1 specification plug used on listed models
- Simple to fit; set gap and torque to the guidance in your machine's manual
Typical Applications:
Routine replacement spark plug for Husqvarna chainsaws used in forestry, landscaping, agriculture and grounds care. Suitable for felling, snedding, pruning, storm clearance and firewood cutting. Ideal for professional users and DIY owners who need reliable starting and consistent cutting performance.
Also known as:
Ignition plug, chainsaw spark plug, HT plug, small-engine spark plug, two-stroke spark plug, engine plug, replacement plug for Husqvarna saws.
Fits Models:
131 R, 131 RB, 455 Rancher, 455E, 460, 461
Alternate Part Numbers:
577 48 40-01, 577484001
Product Specifications
| L&S Part No. | 577 48 40 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 577484001 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna part ensures compatibility with listed models - Fits Husqvarna 460 and 461 chainsaws - 19 mm hex head for easy fitting and removal - Plated steel shell and ceramic insulator resist heat and vibration - Supports reliable ignition for smooth operation and power delivery |
| Fits Models | 455E | 455 RANCHER | 460 | 461 | 131 R | 131 RB |
