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NGK Spark Plug Europe: Aftermarket glow plug from Mercedes’ OE available for the first time

slashes Press release from 07/06/2015

Ratingen, 06.07.2015 - NGK Spark Plug, the world’s leading glow plug manufacturer, is providing the European Aftermarket with an additional glow plug from the Company’s OE business: the NHTC glow plug CZ551. It is equivalent to the CZ501, which was developed for Daimler AG and features as Original Equipment in a wide range of applications from Mercedes-Benz.


The new high temperature ceramic glow plug (NHTC) made NGK Spark Plug the preferred glow plug supplier to the premium car manufacturer. Until 2019, Mercedes-Benz will almost exclusively be using glow plugs from the ignition and sensor specialist for all current and newly developed diesel engines for passenger cars.

As part of the cooperation, NGK also developed the NHTC glow plug, which has now been made available to the Aftermarket. It offers outstanding glowing characteristics. Thanks to its fully ceramic heating element it reaches an operating temperature of about 1,000 °C in less than two seconds. Additionally, it is capable of post-glowing at a constant temperature of approximately 1,350 °C for many minutes. In doing so, it contributes strongly to the reduction of noxious pollutants and carbon-particulate emissions.

The CZ551 (Mercedes Part Nos. A001 159 73 01 and A001 159 80 01; NGK Stock No. 91584) offers huge Aftermarket potential: It is equivalent to the OE glow plug CZ501, which is specified as OE in the inline four-cylinder OM651, the basic engine from Mercedes which has been powering more than 60 of the brand's cars since 2010 in output levels from 100 to 198 kW. Among others, it can be found in the A, B, C and S Class as well as the CLA, CLS, GLA and GLK Class. As a result, the CZ551 has been added to the D-Power range of fast-movers and allocated the D-Power short number 85. 

All vehicle applications of the glow plug can be looked up in NGK’s service information, which is available from NGK distributors.


About NGK Spark Plug: NGK Spark Plug is one of the leading automotive suppliers. Specialised in the fields of ignition and sensor technology, the Company supplies customers in Original Equipment and Aftermarket across the globe. Its product portfolio comprises spark plugs, glow plugs, ignition coils and ignition leads under the brand NGK Ignition Parts as well as mass air flow and manifold absolute pressure sensors, lambda sensors, exhaust gas temperature sensors and NOx sensors under the brand NTK Vehicle Electronics. The Company runs production plants and sales organisations all over the world. With more than 14,000 employees, it generates an annual turnover of around 2.9 billion euros. NGK is represented on all continents and has 42 group companies, 24 production plants and 5 technical centres.


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For further information contact:

Marcel Aßmann

Specialist PR & Event

Aftermarket EMEA

NGK SPARK PLUG Europe GmbH Harkortstr. 41

40880 Ratingen


AG Duesseldorf HRB 43118

Tel: +49 (0)21 02 974 152



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