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The Engine’s Power Plant

Handling high voltage is the task an ignition coil must perform reliably. Weak ignition coils cause engine misfiring and performance problems. This is why Niterra offers an extensive range of ignition coils. NGK Ignition Coils offer accuracy in engineering for a precise fit and perfect durability.

80 years of experience in ignition technologies

More than 400 part numbers available for all car generations

92% coverage of vehicles in operation in Europe (source: TecDoc)

Installation support code for every engine technology with interactive QR code

Ignition Coil Technologies

The continuous development of an ignition system has advanced over the years. Similarly, the ignition coils that car manufacturers use. In general, there are two fundamental operating principles in ignition coil technology: ‘single spark technology’ and ‘dual spark technology’. With single spark technology, there is an individual coil for each spark plug supplied. With dual spark technology, one coil simultaneously actuates two cylinders.

  • NGK ignition coils use the technology car manufacturers require
  • The vacuum moulding process ensures a blister-free encapsulation
  • Each ignition coil is produced in strict compliance with OE specifications

Ignition Coil Requirements

The ignition coil's design and material must be resistant to heat and moisture in the engine bay and function reliably. Oil and petrol vapours mustn’t be able to harm the housing: This damage to the housing would impair the function.

Types of Ignition Coils

Distributor Ignition Coils
Block Ignition Coils
Pencil Coils
Ignition Coil Systems (“rails”)

TekniWiki: Technical Know-how

A platform for gaining detailed technical know-how


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This video explains the funcunction principles of any igniton coil. Watch and learn!

Frequently Asked Questions - Ignition Coils

What does an ignition coil do?
What are the signs of a bad ignition coil?
How many different types of ignition coils are there?
Does Niterra make good ignition coils?

NGK SPARK PLUG is now Niterra!

But don‘t worry: Moving forward doesn‘t mean we‘re leaving our heritage and quality standards behind.
Our new company name ‘Niterra’ expresses the Group’s desire to be a company that not only contributes to a sustainable society, but also one that makes the earth shine.

The iconic brands - NGK and NTK - have built up highly impressive levels of brand loyalty and will therefore continue to exist for the company’s respective ignition and sensor businesses.

Get to know all about our new company name and what our future vision looks like:

A new beginning
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