Mazda Axela Atenza Iridium Spark Plug PE5S-18110 ZC20HPR11 Long-life Ignition

Iridium spark plugs PE5S-18110 (ZC20HPR11) for Mazda MX-5/Verisa? (Aztra) applicable to Axela/Attenza/MAZDA2. The iridium electrode material provides improved burn resistance and stable ignition versus nickel alloy, with threads and insulator process tightly controlled. Real-world life up to 80,000–100,000 km; suitable for Mazda 2.0L/2.5L engines and most Mazda models since 2000. Function: ensure complete combustion, reduce carbon buildup and misfire risk, smoother cold starts. Installation difficulty moderate; use dedicated spark plug socket; torque 25–30 N·m; clean mounting hole before tightening.