The product for which Niterra is best known! Available for almost every engine type, spark plugs are a vital component when it comes to igniting the mixture of air and fuel inside the combustion chamber of a petrol engine. As a provider of spark plugs for OE and aftermarket customers, Niterra is continually improving its products with a view to making combustion in engines cleaner and more efficient.

NGK glow plugs are setting new standards in glow plug technology. Under a certain temperature, the engine will not start without well-performing glow plugs. Therefore, glow plugs are mandatory to ensure a perfect engine start, especially in cold conditions. This is why Niterra is constantly expanding its expertise. There are two glow plug types: metal rod glow plugs and ceramic glow plugs.

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’. The ignition coil's design and material must be resistant to heat and moisture in the engine bay and function reliably.

With its NTK oxygen sensors launched in the 1980s, Niterra was among the pioneers in this field. Since then, the reduction of harmful emissions has made significant advances, not least thanks to the development of innovative technologies and extensive research. Today, highly efficient ceramic heaters in lambda sensors ensure, that the sensors start measuring sooner and respond faster.

The MAF sensors are in two variations: hot-wire technology and hot-film technology. MAF sensors have no moving parts and use electrical current to measure air mass. MAP sensors can be classified in two: manifold pressure type and boost pressure type. They provide immediate data on the manifold/boost pressure to the ECU, measuring air pressure to make calculations for fuel.

Temperature sensors use resistors whose resistance changes with temperature. Two different types of sensors are common: PTC and NTC. While with PTC (Positive Temperature Coefficient) resistance increases with rising temperature, with NTC (Negative Temperature Coefficient) resistance decreases with rising temperature. All NTK sensors are NTC types.