Ford F150 Mustang 5.0L Ignition Coil BR3Z-12029-A, replaces original factory DG-542 Ignition Coil

KLP ignition coil, material and process benchmarked to OEM BR3Z-12029-A, but thicker epoxy encapsulation for better resistance to high temperature and vibration-induced internal breakdown. OEM number BR3Z-12029-A, directly replaces factory DG-542 high-voltage module, compatible with imported Ford F-150 and Mustang 5.0L V8 engines. Function: step up low voltage to tens of thousands of volts to ensure stable spark plug firing, reducing misfire and idle roughness. Before installation, disconnect the battery negative and avoid damaging the connector when removing old coil.