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Industry welcomes NTK camshaft & crankshaft sensors

NGK’s range of premium NTK camshaft and crankshaft sensors (also known as engine speed & position sensors) have proved to be a popular addition to the company’s portfolio since being launched last year.

The range – comprising more than 200 UK-specific part numbers with excellent UK vehicle parc coverage – opened up further sensor replacement opportunities for aftermarket customers.

Cam and crankshaft sensors are a vital part of the engine management system and provide information about engine speed and the exact position of several engine parts, camshaft/valves, and crankshaft/pistons. Supplying this information to the engine control unit (ECU) enables the fuel injection and ignition systems to function efficiently.

Mark Hallam, Marketing Manager, NGK Spark Plugs (UK) Ltd, said: “NGK has always been renowned as a supplier of original equipment spark plugs, glow plugs and NTK Lambda sensors to the world’s leading vehicle manufacturers and the independent automotive aftermarket and in recent years has also become increasingly well known for its expanding NTK sensors’ range.

“Our NTK camshaft and crankshaft sensors have been very positively received by our UK and Ireland customers since being launched in April last year. NTK has more than 40 years’ experience in the sensor business and the comprehensive range of premium camshaft and crankshaft sensors further confirmed our position as the UK’s leading ignition and sensor supplier, proving extremely popular with our distributors and their garage customers.”

Crankshaft and camshaft sensors provide information about engine speed and the exact position of crankshaft/pistons and camshaft/valves. Because ‘timing is everything’, supplying this information to the engine control unit (ECU) enables the fuel injection and ignition systems to function efficiently.

The sensors use either Hall effect or inductive principle and are not interchangeable. Some are designed to operate ‘dry’, some in oil contact.

Hall effect sensors have integrated electronics, an external 5V power supply and a square output signal (0V/5V). They can detect a ‘position’ even when the trigger wheel is stationary. Compared to inductive type, they have less sensitivity to electromagnetic interference and changes in the air gap between sensor and the trigger have no direct effect on the signal. They have three pin connectors.

Inductive sensors generate a signal, have no external power supply, and have a wave-form output signal. A signal is generated only as the ‘trigger wheel’ passes by. Voltage rises as the trigger wheel increases speed. The mounting distance between the sensor and trigger wheel is important. They have two or three pin connectors, the third being a shielding ground connection.

Whichever design principle, the sensor delivers the input signal for the ECU. Without that signal the engine runs poorly, hard starting results or vehicle breakdown occurs.


Notes to Editors


Worldwide: NGK SPARK PLUG is one of the leading automotive and technical ceramics suppliers, with its corporate headquarters in Nagoya, Japan and sales organisations and production facilities all over the world. The automotive side of the company specialises in the fields of ignition and sensor technology, supplying Original Equipment customers across the globe. For the Aftermarket, its product portfolio comprises spark plugs, glow plugs, ignition coils and leads under the NGK Ignition Parts brand. Under the brand NTK Vehicle Electronics the company offers oxygen sensors (including NOx sensors), exhaust gas temperature sensors (EGTS), mass air flow (MAF) and manifold absolute/boost pressure (MAP) sensors as well as engine speed and position sensors. With around 16,000 employees, the company’s automotive and technical ceramics activities generate a total annual turnover of around 3.5 billion Euros worldwide. NGK SPARK PLUG’s EMEA sales (including its EU, UK, France and Eurasia subsidiaries) represent 26.1% of this global turnover. NGK SPARK PLUG operates on all continents and has 41 group companies, 24 production plants and four Technical Centres.


Aftermarket EMEA: NGK SPARK PLUG has seen significant growth across the Aftermarket since expanding beyond motorcycle parts into the automotive sector in the 1970s. With an outstanding commitment to quality, technology and research & development the company has become the world’s number one in spark plugs and oxygen sensors, and a leading provider of glow plugs, ignition coils and leads as well as further sensor technology. Organisationally NGK SPARK PLUG’s regional headquarters in Ratingen, Germany serves the Aftermarket across Europe, the Middle East and Africa. In the EMEA region the company has ten group companies and more than 1,000 employees, as well as two production plants in France and South Africa and a Technical Centre in Germany.


For further information contact:

Andy Hurst

Hurst Media Services

Tel: +44 (0)1354 657253; Mobile: 0773 694 7803