Denso KH16TT 4605 Spark Plug, OEM Replacement Choice

E-core KH16TT 4605 spark plug as an OEM replacement option, using iridium electrode material offering much higher resistance to thermal and mechanical wear than ordinary nickel alloys; typical spark plug life extends by 20,000-30,000 km. Thread size M14x1.25, reach 26.5 mm, resistance 6 kOhm, strictly matching OEM specs, fits post-2000 Eisengard series vehicles, ensuring stable ignition energy and reducing misfire risk. It is responsible for precise ignition of the mixture, improving combustion efficiency, with direct improvements to fuel economy and power response. Replacement difficulty is medium; use a standard spark plug socket and follow torque control.