NGK DILKAR7C9H / 91215 Iridium Ignition Spark Plug Replaces 22401-1KC1C

The NGK DILKAR7C9H / 91215 iridium ignition spark plug is designed for maximum ignitability and longevity, featuring the smallest tip diameter and a laser-welded iridium center electrode. A platinum disc welded to the backside of the ground electrode reduces wear, delivering stable idle, quicker starts, and superior anti-fouling. With a 12 mm outer thread, 14 mm spanner size, and a 4 mm spark position, this OEM-approved plug enhances fuel economy and lowers emissions through reduced misfires and efficient combustion. Its trivalent metal plating provides enhanced corrosion resistance and anti-seizing properties. Please verify compatibility with your vehicle’s specification to ensure the correct part before ordering.