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Precise Ignition for Petrol Engines

NGK spark plugs have been igniting since the 1930s. But sparks don’t just simply ignite. It takes a high amount of precision to create spark plugs that perform well and are extremely resistant in doing so.

No. 1 worldwide in Automotive OE and IAM

> 1,500 part numbers available for European markets

93% coverage of vehicles in operation in Europe (source: TecDoc)

Extensive range for power sports and power tools

NGK Spark Plugs Technologies

Almost every petrol engine on the market can use NGK spark plugs

From passenger cars and bikes to Formula 1 and motorcycle racing. NGK SPARK PLUG has in over 60 years established itself as a heavily relied upon original equipment manufacturer (OEM). Because of its clear commitment to delivering the highest quality and continuously raising the bar, NGK spark plugs are the first choice for an array of vehicle manufacturers.

In order to meet growing expectations, NGK SPARK PLUG regularly invests in research, technology and development. As a result, the company produces over 1,000 different types of spark plugs for almost every type of engine This includes automotive engines, as well as motorcycles, marine, power sport and many other applications. To sum up, the NGK spark plugs range offers the right product for nearly every demand!

  • Unique design to guarantee the best possible performance

  • Wide range of different heat ratings for high thermal endurance

  • High-performance spark plugs for the newest engine technologies

Spark Plug Requirements

As the main source of power in any petrol engine, a spark plug performs an essential function: It is responsible for igniting the air-fuel mixture in the combustion chamber of petrol engines. This combustion process creates power, which sets the vehicle in motion. To make sure this process runs smoothly, the spark delivered by the spark plug must ignite just before the piston reaches its highest point and the compression is at its greatest.


Types of Spark Plugs

Iridium Spark Plugs
Platinum Spark Plugs
Spark Plugs with Multiple Ground Electrodes
Spark Plugs with V-Groove in the Centre Electrode
Spark Plugs with Supplementary Spark Gap
Semi-surface Ignition Type Spark Plugs
Hybrid Spark Plugs
Racing Spark Plugs
LPG/CNG Spark Plugs




This video explains the electrode wear of spark plugs, especialy the difference between single spark and wasted (double) spark systems. It shows in detail why in double spark ignition systems, spark plug electrode wear is different on some cylinders.

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