Nissan Cefiro Double Iridium Spark Plug 22401-1KT1B DILZKAR6A11 High Performance Ignition Upgrade

Nissan Cefiro (A33) 2000-2003 2.0L VQ20DE and 3.0L VQ30DE engines, also compatible with 2001-2004 Cefiro A32 series of same-displacement models. This dual-iridium spark plug uses center and side iridium electrodes to significantly improve ignition efficiency, reduce carbon buildup, and extend life to 80,000-100,000 km. OEM numbers: 22401-1KT1B and DILZKAR6A11, fully compatible with original 22401 series for cross-checking inventory. Replacement difficulty: medium; tighten with torque 25-30 Nm to avoid thread damage. For B-end buyers, this plug has a 6 kΩ resistance and is compatible with Nissan factory ignition systems; bulk purchase can reduce aftersales returns; suitable for high-replacement-frequency models.