VKA20 5623 Spark Plug, compatible with Honda, Toyota, Audi, Mercedes-Benz, Mitsubishi, Subaru vehicle ignition systems

VKA20 5623 spark plug as the ignition system’s core component, installed in the spark plug well of the engine cylinder head; ignites the air–fuel mixture. Compatible with many post-2000 models from Honda, Toyota, Audi, Mercedes, Mitsubishi, Subaru, etc.; iridium electrode, excellent high-temperature and corrosion resistance. Resistance 6 kΩ, thread size M14x1.25, reach 26.5 mm. Installation difficulty: medium; expected labor 30–60 minutes depending on model. If there is starting difficulty, idle vibration, weak acceleration, or noticeably increased fuel consumption, spark plugs may be aging or fouled and should be replaced.