It's over 100 years since Bosch patented the first spark plug. Since then, continuous development and close collaboration with vehicle producers has made Bosch Europe's No.1 original equipment supplier of spark plugs.

Our name stands for the highest levels of quality, precision engineering and unrivalled expertise.

1902 Bosch patented the first spark plug.

1927 Bosch creates the term 'heat range' - now today's standard measure of thermal capacity.

1953 Spark plugs with composite centre electrodes are first introduced.

1976 First mass production of Thermoelastic plug with composite centre electrode.

1980 Platinum centre electrodes and composite materials with noble metal alloys boost service life in excess of 60,000km.

1991 First surface/air gap spark plug, prevents carbon fouling, timing drift and misfire.

1995 Nickel Yttrium electrodes introduced into Bosch plugs.

2000 Bosch produces its seven billionth spark plug and introduces plugs for the first direct injection stratified charge gasoline engine.