Mazda3 Mazda6 MX-5 Iridium Spark Plug DILKAR7M8 PY8V-18110 OEM Replacement

Iridium spark plug designed for Mazda3, Mazda6, and MX-5 produced after 2000; suitable for 1.6L–2.0L engines. Core function is stable, efficient ignition to improve combustion, boost power, and reduce fuel consumption. OEM numbers PY8V-18110, DILKAR7M8, and 90288 for cross-checking with inventory systems. Replacement difficulty is medium; torque wrench installation to factory torque recommended to avoid over/under-tightening. As a factory replacement, double-precision iridium electrode design extends life to 80k–100k km, suitable for bulk maintenance purchases.