Description
Overview:
The Genuine NGK BR5ES Spark Plug (MPN 4722) is a resistor-type plug for reliable ignition in petrol engines used across garden, agricultural, and light construction equipment. Built with a copper core and nickel alloy electrodes, a tough steel shell, and a glazed ceramic insulator, it delivers consistent spark, good heat dissipation, and long service life. Typical specifications for the BR5ES include an M14 x 1.25 thread, 19 mm reach (3/4"), and a 20.8 mm hex (13/16") for easy fitting with standard sockets. It is a practical choice for routine maintenance and performance restoration on small engines. Suitable for various machines, including models such as Ford 158 and Kohler GH150V. As a genuine NGK component, it meets OEM standards and is sold individually for precise ordering.
Key Features:
- Genuine NGK part for dependable quality and fit
- Resistor design helps reduce electrical interference with onboard electronics
- Copper core with nickel alloy electrodes for reliable ignition and durability
- Standard M14 x 1.25 thread and 19 mm reach (3/4") for common small-engine compatibility
- 20.8 mm hex (13/16") for straightforward installation with a standard spark plug socket
- Corrosion-resistant plating on the shell to withstand moisture and fuel vapours
- Stable heat range (NGK 5) suited to many small to medium petrol engines
- Factory-set gap; check and adjust to your engine's specification for best results
- Helps improve cold starting, smooth running, and throttle response
- Sold individually to match the exact number of cylinders you are servicing
Typical Applications:
Used in small petrol engines powering lawnmowers, ride-on mowers, compact tractors, generators, water pumps, pressure washers, and light plant. Also suitable for selected industrial engines and older machinery where BR5ES is specified. Ideal for routine servicing, tune-ups, and troubleshooting misfires or hard starting.
Also known as:
Resistor type plug, engine igniter, ignition plug, combustion initiator, spark electrode, petrol engine ignition component, NGK 4722 BR5ES reference.
Fits Models:
Ford 158, Ford 175, Ford 201, Kohler GH150V, Yamaha ET350, Hyster GM250
Alternate Part Numbers:
4722
Product Specifications
| L&S Part No. | BR5ES |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 4722 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Resistor design reduces electrical interference - Copper core with nickel alloy electrodes - M14 x 1.25 thread, 19 mm reach - 20.8 mm hex for easy installation - Suitable for Ford 158, Kohler GH150V models |


