Description
Overview:
The Genuine NGK B-4 Spark Plug (MPN 3210) is a standard small-engine spark plug designed to restore reliable ignition in petrol-powered machinery. Built with a robust metal shell and a high-strength ceramic insulator, it is made for long service life in everyday and heavy-use conditions. The plug has a 3/4 inch (19.05mm) thread reach with a 9.5mm thread diameter, making it suitable for many classic and modern small engines used in garden and construction equipment. Typical applications include engines from brands such as Allis-Chalmers and Ariens Lauson, as well as numerous handheld and machinery motors. It is sold individually and is well suited for routine servicing or one-off replacements on machines such as the McCulloch 150 and the Robin EY21.
Key Features:
- Genuine NGK component (MPN 3210) for dependable quality and fit
- 3/4 inch (19.05mm) thread reach and 9.5mm thread diameter for compatibility with a wide range of small engines
- Robust metal shell and durable ceramic insulator for long-lasting performance
- Consistent spark delivery to support easier starting and smooth running
- Helps maintain efficient combustion and reduce misfires in well-maintained engines
- Straightforward like-for-like replacement; sold individually for convenient servicing
- Suitable for classic and current small plant and garden machinery engines
- Trusted by tradespeople and DIY users for routine maintenance and repair
Typical Applications:
Used in small petrol engines found in lawn mowers, utility tractors, compact tillers, blowers, pumps, and portable generators. Suitable for workshop servicing, fleet upkeep, and homeowner maintenance where a 3/4 inch (19.05mm) reach and 9.5mm thread are specified. Ideal for restoring reliable ignition on older machinery as well as regularly used garden and light construction equipment.
Also known as:
Spark igniter, engine plug, ignition plug, small engine spark plug, petrol engine plug, replacement spark plug for garden machinery and plant equipment.
Fits Models:
150, 200, 300, 400, EC13V, EY21, FA51, PB9
Product Specifications
| L&S Part No. | B-4 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 3210 |
| Unit of Sale | 1 |
| Applications | 150, 200, 300, 400, EC13V, EY21, FA51, PB9 |
| Machine Type | Engines |
| Fits Brands | NGK |
