NGK IFR7F-4D (5115) Лазерный иридовый свечной разряд

Professional supply of NGK IFR7F-4D (5115) laser iridium spark plugs, original OE quality. This spark plug features an iridium center electrode, six times harder than platinum, paired with 98% pure copper core and high purity alumina ceramic insulator, ensuring ultra-long service life and stable ignition. Suitable for heavy trucks such as China Heavy Duty Howo, Shaanxi Heavy Duty DeLong, and natural gas (CNG/LNG) engines of Yuchai, Weichai WD615 series, with thread size M14×1.25, wrench size 16mm, with resistor (5kΩ) and sealing washer. Widely used in long-distance coaches, heavy trucks, and construction machinery. In stock supply, supporting bulk purchase.