斯巴鲁引擎点火线圈22433-AA480，稳定高效替代原厂件

When your Subaru shows idle jitter, sluggish acceleration, or engine fault light on, plus obvious fuel economy increase, it is usually caused by aging ignition coils or internal shorting leading to insufficient ignition energy. This part converts low voltage to high voltage to ensure strong sparks at the correct timing for spark plugs, maintaining smooth engine operation and power. OEM number 22433-AA480; fit for Subaru Forester, Outback, Legacy and other 4-cylinder models, also compatible with 22443-AA540 and 22433-AA640. Install by disconnecting the battery negative first; ensure ignition coil contact surface with spark plug is clean; torque must follow OEM standards to avoid housing cracking.