Nissan Iridium Spark Plug LZKAR7AP-11 22401-ED816 Ignition System Upgrade Preferred

Nissan iridium spark plug LZKAR7AP-11 (OEM 22401-ED816) designed for post-2000 Primera, Teana, Tiida and other models; iridium electrode provides stable ignition and significantly improves combustion efficiency. Improves cold-start, reduces hesitation and idle vibration, stabilizes fuel economy. If power drops or fuel consumption rises, spark plug aging and carbon buildup are typically the cause; replace to restore smooth operation.