福特汽车点火线圈 BM5Z-12029-B/BM5G-12A366-CA 原厂替换

When Ford vehicles exhibit starting difficulty, idle vibration, weak acceleration, or engine fault light on with codes like “misfire,” it usually indicates ignition coil aging or internal short, unable to properly convert low voltage to high voltage to supply spark plugs. This coil provides a stable high-voltage ignition pulse for each cylinder to ensure complete combustion, maintaining smooth engine operation and power. OEM numbers include BM5Z-12029-B, BM5G-12A366-CA, and 1700610; fits Ford Focus, Escape, Mondeo and other 1.5T/2.0T four-cylinder engines. Installation must disconnect the battery negative and ensure coil connector aligns and locks with the spark plug hole to prevent high-voltage leakage and further damage.