The central spark plug in the cylinder mounted under the plastic plug in the valve cover.Spark plugs DENSO Iridium Power is a technology patented iridium : exceptional engine performance, reduced fuel consumption and emissions, and extended durability candles.
DENSO Iridium Spark have laser welded center electrode at least 0.4 mm diam iridium alloy . In that creep effect was virtually eliminated sparks, gaining a unique response to acceleration.
Iridium is one of the hardest metal in the world with a melting point above 2450 ° C and is very resistant to erosion.
Very thin center electrode secures very high energy spark ignition because the mixture more quickly and burns it faster with greater flame, compared to conventional sparks.
This is the secret of better engine performance by iridium sparks.
Made in Japan.
