Ignition Coil 22435-AA000, Replaces 22435-AA020/CM12-100B, OEM Specifications

22435-AA000 ignition coil mounted on top of the engine cylinder head and directly connected to spark plug; core function is to convert 12V low voltage to tens of thousands of volts high voltage to ensure precise ignition of the mixture. This OEM part can replace 22435-AA020 and CM12-100B; fits many Subaru and Toyota models. Installation difficulty is moderate; labor about 1 hour; pay special attention to cylinder line order and plug tightness. If vehicle exhibits rough idle, weak acceleration, engine check light on, or fuel consumption increases significantly, typically due to coil aging or breakdown; replace promptly.