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SPARK PLUG CONSTRUCTION

BHE011801008T04

• Iridium-tipped spark plugs have been adopted on both trailing and leading sides to improve durability.

• A center electrode with a thick insulator and extremely thin tip (diameter of 0.8 mm {0.03 in}) and small single-ground electrode have been adopted to stabilize firing under a thin fuel-air mixture. At the same time, high-heat resistance has been improved by decreasing the temperature of the electrode and the insulator.

• Spark plugs with an internal resister have been adopted to remove noise caused by the ignition system. The effect of which prevents ignition noise from mixing with the audio system.

• White or yellow paint (leading side), blue or green paint (trailing side) is on the the spark plugs to prevent mis-installation. (Standard type spark plugs only.)

1 | Paint location (standard type spark plugs only)
2 | Ground electrode
3 | 0.8 mm {0.03 in}
4 | Center electrode (irdium)