CENTRE ELECTRODE WITH IRIDIUM CONTACT AND GROUND ELECTRODE FROM YTTRIUM ALLOY WITH COPPER CORE
Wide range spark plugs with centre electrode and iridium contact. Ground electrode from yttrium alloy with copper core.
Replacement interval: see table below.
The most modern BRISK spark plug at present. The design and materials used to fulfil all the current requirements of modern engines. Particularly the low requirement for voltage supplied by the ignition system, open spark gap into the combustion chamber and suppression of the quenching effect.
EXPLANATIONS TO THE TABLE:
* custom production
P sealing washer
K sealing cone