LPG Laserline

LPG LaserLine spark plugs are dual precious metal spark plugs specifically developed for gas-fuelled engines. The combustion of gas is different from the combustion of petrol and, therefore requires spark plugs that are specially adapted for these conditions. The gas-air mixtures are more difficult to ignite as more ignition voltage is required and the risk of failure of the ignition coils increases. NGK Laserline spark plugs come with a lifetime of up to 60,000 km, clearly outperforming “normal” spark plugs.

High-Tech Electrodes

LPG Laserline spark plugs feature an iridium tipped centre electrode and a ground electrode that contains a platinum chip. The tip of iridium is attached in a specially developed laser welding process patented by NGK. The advantage: These precious metals are resistant to the unfavourable conditions in gas powered engines. The spark gap remains virtually unchanged throughout the entire service life.

Individual Spark Gap

A copper core in the ground electrode of every LPG Laserline spark plug improves the temperature discharge, which helps to regulate the higher temperatures in gas powered engines. A specially developed insulator protects these spark plugs from fouling when being used on regular petrol.

Heat Shield for the Metal Shell

Less Stress on the Ignition Coils

Studies conducted by NGK show that the required ignition voltage in gas powered engines increases by as much as 7,000 volts – an acid test for the ignition coils. The iridium centre electrode of Laserline spark plugs is only 0.6 mm in diameter, this provides a counter measure since it requires a lower ignition voltage, in-turn reducing stress on the coils. The shape of the electrode also facilitates optimum advance of the flame front.

NGK Spark Plugs - LPG1 Conversion