Produktfinder

Suchen Sie Zuendkerzen, Gluehkerzen, Lambdasonden, Zuendkabel fuer PKW, Motorraeder, Roller, Boote...

The heat rating

The heat development varies greatly from engine to engine. For example, turbocharged engines run significantly hotter than engines which are not charged.

Therefore, there is a spark plug for each engine which can conduct a precisely defined measure of heat to the cylinder head and ensures that the optimal temperature window is maintained.

The so-called heat rating provides information about the thermal endurance of a spark plug.  The following applies for NGK spark plugs: The higher the heat rating, the higher the thermal endurance.

The heat rating number is found in the respective type designation of NGK spark plugs.

 

The so-called heat rating provides information about the thermal endurance of a spark plug. In the process, the greater the engine load is, the higher the spark plug temperature.
The so-called heat rating provides information about the thermal endurance of a spark plug

Related topics

E-Learning: Would you like to learn more about the product technology? Then take advantage of the know-how of our experts on the NGK E-Learning platform, with 3D animations, videos and diagrams.

How you crack the NGK code: The combination of letters and numbers assigned for every NGK spark plug is not only the type designation, it is a logical formula which contains the important details for the function of the spark plug.

Products and technology

Requirements Spark plug technologies

Interesting facts

Spark plugs Research and development Original equipment Influential factors in the product development Environment

Share