NGK Laser Iridium Spark Plug

The NGK SIZKBR8B8HG Laser Iridium spark plug is engineered to provide superior ignitability and an extended service life, making it an excellent choice for both replacement and performance upgrade needs. This spark plug features a sophisticated design with a fine wire iridium-tipped center electrode and a fine wire platinum-tipped ground electrode. This combination ensures a slow wear rate, which translates to a stable idle, improved fuel efficiency, reduced emissions, and superior anti-fouling capabilities. The core construction incorporates trivalent metal plating for enhanced resistance to corrosion and seizing, corrugated ribs to prevent flashover, and a pure alumina silicate ceramic insulator that offers superior strength and effective heat transfer. Additionally, a copper core is integrated to assist with heat removal, and triple seals are employed to prevent leakage. Key specifications include a 12mm thread diameter with a 1.25mm pitch, a 25mm reach, and a 14mm Bi-Hex size. The terminal type is solid, and the gap is set at .031" (0.8mm). The center electrode is an extended projection fine wire design with a 0.6mm tip, while the ground electrode is a standard taper-cut type made of platinum. This spark plug also features a resistor with a value of 5k Ohm and a heat range of 8. The NGK SIZKBR8B8HG is rated for a longevity of 100,000 miles and comes with a 60-day warranty.