Description
Overview:
The Genuine NGK B-4H Spark Plug (Stock No. 4110) is a standard small‐engine spark plug designed to deliver consistent ignition and smooth running. Built with a durable steel shell and a high-strength ceramic insulator, it uses NGK's proven nickel‐alloy electrode construction for dependable service life in everyday use. With a 14 mm thread and H‐series reach of 12.7 mm (1/2 in), this non‐resistor plug suits a wide range of garden and light construction equipment, including popular engines such as the Honda G150 K1 and Kawasaki KF100D. It is an OEM-grade, Genuine NGK part, sold individually for straightforward maintenance or single-plug replacements. Heat range 4 on the NGK scale supports reliable cold starts and stable combustion under typical UK operating conditions.
Key Features:
- Genuine NGK OEM part for assured compatibility and quality
- 14 mm thread diameter; H reach 12.7 mm (1/2 in) for correct seating in many small engines
- Non‐resistor type for strong spark energy where a resistor is not required
- Nickel‐alloy centre electrode and robust ceramic insulator for long service life
- Consistent ignition to help reduce misfires, improve fuel efficiency, and support clean running
- Heat range 4 balances cold start performance with resistance to fouling
- Corrosion-resistant shell to withstand moisture and outdoor storage
- Easy to fit; supplied singly to match one‐plug engines and ad‐hoc replacements
- Suitable for lawn and garden machinery, compact generators, pumps, and light site equipment
Typical Applications:
Ideal for single‐cylinder and small multi‐cylinder engines found in lawn mowers, generators, tillers, compact cultivators, pumps, and similar machinery. A practical choice for routine servicing, resolving hard‐starting or rough‐running issues, and maintaining reliable ignition performance across seasonal use.
Also known as:
Spark igniter, engine plug, ignition plug, small‐engine spark plug, NGK 4110, NGK B4H (B‐4H). These terms are often used when referring to the same ignition component for compact petrol engines.
Fits Models:
10/1, 101, 12/1, 12/2, 121, 122, 36S, 50S, 7/1, 71, 90S, C12, G150 K1, G150K1, G200 K1, G200K1, GE25S, KF100D, KF150D, KF200D, Agria 1700, Agria 2300, Agria 2400, Agria 3300 Max, Agria 4700, Agria 9300 Vollhydraulik, Agria Baby 2100, Genmac Intermotor, Honda G150 K1, Honda G200 K1, Kawasaki KF100D, Kawasaki KF150D, Kawasaki KF200D, Victa 2‐Stroke, Villiers 7, Villiers 7/1, Villiers 10/1, Villiers 12/1, Villiers 12/2, Villiers C12, Yanmar GE25S, Yanmar 36S, Yanmar 50S, Yanmar 90S
Product Specifications
| L&S Part No. | B4H |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 4110 |
| Unit of Sale | 1 |
| Applications | 10/1, 101, 12/1, 12/2, 121, 122, 36S, 50S, 7/1, 71, 90S, C12, G150 K1, G150K1, G200 K1, G200K1, GE25S, KF100D, KF150D, KF200D |
| Machine Type | Lawn Tractors, Generators, Engines |
