英菲尼迪QX4点火线圈 22448-4W010 原厂替换增强点火效能

Infiniti QX4 2001-2003 3.5L V6 (VQ35DE) and 2000-2003 3.3L V6 (VG33E) engines, also compatible with Nissan Pathfinder of same displacement, use this ignition coil. Converts low voltage to high voltage to ensure spark plug ignition, improving combustion efficiency and power response. OEM replacement number 22448-4W010, also compatible with 22448-4W011, C1332, C1300, UF331 for cross-checks. Replacement difficulty moderate; operate with engine cold and check spark plugs and high-voltage harnesses to avoid secondary faults. This enhanced coil uses copper core winding; compared to original, reduces ignition delay by about 15%; suitable for high-mileage vehicles restoring power.