Description
Overview:
The Genuine NGK B2-LM Spark Plug (MPN 1147) is a standard 14 mm thread plug for small petrol engines used in garden and light construction machinery. Built with a durable steel shell, a high-grade ceramic insulator and nickel-alloy electrodes, it delivers a stable spark for dependable starting and smooth running. With a short 9.5 mm thread reach (0.37 in), it suits compact cylinder heads commonly found on lawn mowers, breakers, pumps and generators. Typical uses include the Wacker Breaker BH23 and Flymo F20, among many others. This spark plug is supplied singly, making it convenient for routine servicing or replacing a fouled plug. As a genuine NGK part, it offers consistent fit and performance when installed to the stated dimensions.
Key Features:
- Genuine NGK part for assured quality and compatibility
- 14 mm thread diameter for common small-engine cylinder heads
- Short thread length: 9.5 mm (0.37 in) for shallow plug seats
- 20.8 mm hex for easy removal/installation with a standard spanner
- Spark position: 1 mm for reliable flame kernel formation
- Nickel-alloy electrodes and glazed ceramic insulator resist fouling and wear
- Consistent ignition for smoother idle, better starting and stable running under load
- Suitable for many 2‐stroke and 4‐stroke small engines in garden and site equipment
- Corrosion-resistant shell for longer service life
- Sold individually to match single-plug maintenance requirements
Typical Applications:
Well suited to lawn mowers, breakers, compact tillers, generators, pumps and pressure washers. Common in equipment using Tecumseh and other small petrol engines, where a 14 mm thread and 9.5 mm reach plug is specified. Ideal for routine servicing or restoring reliable ignition on machines that see seasonal or heavy use.
Also known as:
Spark igniter, ignition plug, engine plug, lawnmower spark plug, small‐engine plug, B2LM spark plug.
Fits Models:
Wacker Breaker BH23, Flymo F20, Flymo Lawnchief 508, Flymo RL500, Flymo RL550, Flymo RRL420, Flymo RRL420PD, Flymo RRL420PDE, Hayter Tecumseh engines, Homelite HPW1200B, Homelite 45STD, Homelite 45DLX, Homelite HBM21P5-21, Homelite HCM20, Homelite HCM20P5, Homelite HCM20P5G, Homelite HMB21P41, Homelite HMB21P51, Homelite HSB21, Homelite HSB21P5, Homelite HSB21P5EG, Homelite HSD20P, Homelite HSD20V, Homelite HSD20K, Jacobsen B&S engines, Panther All models, Snapper P5001B, Snapper PP5001B, Snapper PR5001B, Snapper ELW400, Snapper EP21400, Snapper EP21500, Snapper EP2150E, Snapper E3312513BE, Snapper E331313BE, Tecumseh 2.5HP, Tecumseh 2.75HP, Tecumseh 3.25HP, Tecumseh 3.5HP, Tecumseh 3.9HP, Tecumseh 4HP, Tecumseh 5HP, Tecumseh 6HP, Tecumseh 7HP, Tecumseh 8HP, Tecumseh 10HP, Tecumseh 12HP HH120, Tecumseh TNT120, Tromeca 20805 (B&S Quantum engine), Tromeca 20805 (B&S XTE engine), Tromeca TR4431BS, Tromeca TR500T, Tromeca TRP443, Tromeca TRT443, Tromeca TRT4431BS, Tromeca TRT4481BOD, Tromeca TRT4481BQ, Tromeca TRT5471BQ, Tromeca TRT5471BQD, Tromeca TRT5531BQ, Tromeca TRT5531BQD
Alternate Part Numbers:
1147
Product Specifications
| L&S Part No. | B2LM |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 1147 |
| Unit of Sale | 1 |
| Applications | BH23, F20, Lawnchief 508, RL500, RL550, RRL420, RRL420PD, RRL420PDE |
| Machine Type | Breakers, Lawn Mowers |
