Description
Overview:
The Genuine NGK B4LM is a small‐engine spark plug designed to deliver a clean, reliable spark for dependable starting and smooth running. Built by NGK, it uses a durable metal shell with a robust white ceramic insulator to withstand heat, vibration, and fouling in everyday garden and construction equipment. Suitable for many compact petrol engines found in lawn mowers and chainsaws, it helps ignite the air-fuel mixture efficiently under both light and heavy loads. This Genuine Part carries NGK Manufacturer Part Number (MPN) 3410 for easy identification. If you are refreshing a service kit or solving hard starting, misfires, or poor idle, the NGK B4LM offers a simple, proven replacement that supports consistent performance in typical 2‐stroke and 4‐stroke small engines.
Key Features:
- Genuine NGK spark plug (MPN 3410) for assured quality and fitment
- Consistent, reliable spark for easier starting and stable idle
- Durable ceramic insulator and metal shell for heat and vibration resistance
- Designed for small petrol engines in lawn mowers, chainsaws, and similar tools
- Helps improve combustion efficiency and throttle response when replacing worn plugs
- Standard terminal connection compatible with common small‐engine HT leads
- Fits quickly using a suitable spark‐plug spanner; check and set gap to your engine spec
- Supports both routine servicing and fault‐finding on hard‐starting or rough‐running engines
- Corrosion‐resistant construction for longer service life in outdoor environments
- Trusted NGK engineering for dependable performance in everyday use
Typical Applications:
Used during routine services or troubleshooting to restore reliable ignition on lawn mowers, chainsaws, brushcutters/strimmers, generators, small pumps, tillers, and compact cultivators. Ideal for garden equipment, light construction machines, and other portable petrol tools where stable starting, smooth running, and consistent ignition are required. Suitable for many small 2‐stroke and 4‐stroke engines that specify NGK B4LM.
Also known as:
Ignition plug, igniter plug, spark ignition plug, small‐engine plug, mower spark plug, chainsaw plug, two‐stroke plug, petrol engine plug, garden machinery plug, compact engine ignition plug.
Product Specifications
| L&S Part No. | B4LM |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 3410 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws, Mowers |
