Description
Overview:
The Genuine NGK BR8HSA Spark Plug (code 5539) is a high-quality resistor spark plug for small powersports engines. It features a durable steel shell with a white ceramic insulator and a nickel-alloy centre electrode over a copper core for steady heat transfer and dependable ignition. With a 14 mm thread and 12.7 mm (0.5 inches) reach, it suits many compact motorcycle, ATV and quad bike engines, including the Apache Army 100 and Kymco KXR 50. A 20.8 mm hex makes installation straightforward with a standard socket. The M4 terminal connection and 3.5 mm spark position support consistent performance. This is a Genuine NGK part, supplied individually, for users who want reliable starts, smooth running and minimal maintenance effort.
Key Features:
- Genuine NGK BR8HSA resistor spark plug (5539), sold individually
- 14 mm thread and 12.7 mm (0.5 inches) thread reach for correct seating in short-reach cylinder heads
- 20.8 mm hex spanner size for easy fitting and removal
- M4 terminal connection for secure lead attachment
- 3.5 mm spark position for consistent flame kernel growth
- Nickel-alloy electrode with copper core helps control heat and resist fouling
- Robust ceramic insulator for high dielectric strength and durability
- Resistor design reduces electrical noise that can interfere with electronics
- Supports reliable cold starting, smooth idling and stable performance
- Suitable for many motorcycles, ATVs and quads where BR8HSA is specified
Typical Applications:
Used during routine servicing or troubleshooting misfires on small-capacity motorcycles, ATVs and quad bikes. Ideal for engines that require a 14 mm thread, 12.7 mm (0.5 inches) reach, and resistor plug to maintain clean combustion, dependable starting and steady throttle response in everyday road, trail or light-duty recreational use.
Also known as:
Ignition plug, engine spark plug, resistor spark plug, 14 mm short-reach spark plug, powersports spark plug, NGK 5539, BR8HSA plug.
Fits Models:
Apache Army 100, Apache RLX 50, Apache RLX 100, Apache SX 100, Apache Tomahawk Mini 50, Apache ZX100, Kymco KXR 50, Quadzilla ProShark E, Quadzilla X100, Sym QuadLander 250
Alternate Part Numbers:
98076-5871G, 98076 5871G, 980765871G, 5539
Product Specifications
| L&S Part No. | BR8HSA |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 5539 |
| Unit of Sale | 1 |
| Machine Type | All Terrain Vehicles |
| Fits Brands | NGK |
| Key Features | - 14 mm thread, 12.7 mm reach for compact engines - 20.8 mm hex for easy installation - M4 terminal ensures secure lead connection - Nickel-alloy electrode with copper core for heat control - Suitable for Apache and Kymco models listed |
