NGK Spark Plug IFR7X7G (91039)

 NGK Laser Iridium​ Spark Plug IFR7X7G​ / 91039

Laser Iridium is designed alongside OEMs to meet quality and durability standards for each manufacturer. Featuring high-grade alumina silicate ceramic and fine wire center electrodes, the Laser Series brings OE performance to every engine.

• Fine iridium tip ensures high durability and a consistently stable spark

• Trivalent metal plating for superior anti-corrosion and anti-seizing properties

• Outstanding acceleration, high fuel efficiency and durability

Product Features:​

• External Thread (Mm): 14 mm

• Key Opening: 16 mm

• Spark Plug: 1-electrode note / with flat sealing seat / SAE connection / No antiparasitic protection 5kOhm / Iridium center electrode

• Thread Length: 19 mm

• Spark Position: 3.5 mm

Originals: ​

• BUICK: 12 14 066

• BUICK: 55 576 026

• CADILLAC: 12 14 066

• CADILLAC: 55 576 026

• CHEVROLET: 12 14 066

• CHEVROLET: 55576026

• DAEWOO: 12 14 066

• DAEWOO: 55 576 026

• GENERAL MOTORS: 12 14 066

• GENERAL MOTORS: 55 576 026

• OPEL: 1214066

• OPEL: 55576026

• PONTIAC: 12 14 066

• PONTIAC: 55 576 026