Ford Ignition Coil CM5Z-12029A / CM5E-12A366BB Replacement Coil, Stable Performance

Ford ignition coil CM5Z-12029A/CM5E-12A366BB uses high-purity copper winding and high-temperature epoxy resin encapsulation. Tested resistance fluctuation within ±3% after 200 hours of continuous operation; durability sufficient for normal conditions. OEM number CM5E12A366BB; fits Ford Focus, Escape, and other 2.0L/1.6L four-cylinder engines. Before installation, verify the original coil connector shape. Function is to boost 12V low voltage to over 30,000 volts to ignite the air-fuel mixture. If misfire, rough idle, or weak acceleration occur, replacing this part can restore ignition efficiency. Installation difficulty is medium; professional technician recommended.