PK16TT 4503 火花塞，丰田普锐斯奥迪奔驰三菱斯巴鲁本田多车通用

PK16TT 4503 iridium spark plug uses iridium electrode material, extending ignition life by about 2-3 times compared to nickel alloy OEMs, with better anti-erosion stability. Thread size M14x1.25, seating length 26.5mm, suitable for Toyota Prius after 2000, Audi, Mercedes-Benz, Mitsubishi, Subaru, Honda and other models. Resistance 6 kΩ, effectively suppresses EMI and ensures smooth idle and responsive acceleration. During installation, pay attention to bore size standards; torque wrench should be used to tighten per manufacturer recommendations. Ordinary car owners are advised to have a professional technician install to avoid thread galling.