Description
Overview:
The Genuine NGK 4495 Spark Plug No. BPZ8H-N-10 is an OEM ignition component for reliable starting and smooth running of petrol engines used in vehicles, plant, and garden machinery. It uses a 14mm thread with a 1.25mm pitch and a gasket seat for a secure seal. The 12.7mm (1/2") reach positions the spark correctly in the combustion chamber, while the 13/16" (21mm) hex allows straightforward fitting with a standard plug socket. A preset 0.039" (1.0mm) gap supports consistent ignition. Built with a durable metal shell and a high-grade ceramic insulator, the plug withstands heat, vibration, and fuel additives. Inductive suppression helps reduce electromagnetic interference with nearby electronics. This Genuine NGK part is suitable for a wide range of engines used by tradespeople, DIY users, and fleet operators where dependable ignition matters.
Key Features:
- Genuine NGK OEM spark plug for assured compatibility and build quality
- 14mm x 1.25mm thread and gasket seat for precise, gas-tight installation
- 12.7mm (1/2") reach for correct flame position and efficient combustion
- 13/16" (21mm) hex for easy removal and fitting with a standard socket
- Factory-set 0.039" (1.0mm) gap for dependable spark performance
- Solid terminal for a robust electrical connection with fixed plug caps
- Inductive suppression reduces electromagnetic interference to electronics
- JIS overall height for reliable fit across many small and medium engines
- Tough ceramic insulator resists fouling and thermal shock
- Corrosion-resistant metal shell helps extend service life
- Supports smoother idling, improved cold starts, and consistent throttle response
- Suitable for scheduled maintenance or as a direct replacement part
Typical Applications:
Used in petrol engines powering garden machinery (lawn mowers, generators, pumps), light plant and construction equipment, motorcycles, ATVs, and small vehicles where a 14mm gasket-seat plug with a 12.7mm reach is specified. Ideal for routine servicing, restoring reliable ignition after fouling, or curing hard-start issues.
Also known as:
Spark plug, ignition plug, engine spark igniter, combustion igniter, petrol engine plug, high-tension plug, ignition system plug, NGK plug.
Product Specifications
| L&S Part No. | BPZ8H-N-10 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 4495 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | NGK |
| Key Features | - 14mm x 1.25mm thread with gasket seat for secure installation - 12.7mm (1/2") reach ensures correct flame position - 13/16" (21mm) hex fits standard plug sockets - Preset 0.039" (1.0mm) gap for consistent ignition - Inductive suppression minimises electromagnetic interference |
