22401-1LA1C Spark Plug for Armada/Titan/QX80 5.6L V8 (Iridium, DILKAR7B11, Resistor Type)

The 22401-1LA1C is a genuine OE-grade spark plug engineered to original equipment specifications for Nissan and Infiniti vehicles equipped with the 5.6L V8 engine. This direct replacement spark plug features NGK Laser Iridium technology—a double iridium center electrode that delivers exceptional ignitability, superior resistance to spark erosion, and consistent ignition performance.

The resistor-type design incorporates a built-in resistor to suppress electromagnetic interference, protecting sensitive engine electronics including ECUs, ignition coils, and CAN bus systems. Precision-engineered with M12×1.25 thread size, 26.5 mm thread reach, and 16 mm hex size, each unit is factory pre-gapped to 0.8 mm and ready for installation. The gasket seat design ensures proper sealing and consistent installation torque. Manufactured to strict OE performance, durability, and emissions standards in Japan.

The 22401-1LA1C (NGK DILKAR7B11) is the factory-specified spark plug for Nissan Armada, Titan, Titan XD, and NV vans, as well as Infiniti QX80, Q70, M56, and QX56 models. Whether for routine maintenance or direct replacement of worn spark plugs, the 22401-1LA1C delivers OE-grade performance, smoother idling, reliable starts, and consistent combustion efficiency.

Compatible Models

For 2024 Nissan Armada Midnight Edition / Platinum / SL / SV 5.6L V8

For 2024 Nissan TITAN PRO-4X / Platinum Reserve / SV 5.6L V8

For 2024 Nissan TITAN XD PRO-4X / Platinum Reserve / SV 5.6L V8

For 2024 INFINITI QX80 Luxe / Premium Select / Sensory 5.6L V8

For 2023 Nissan Armada Midnight Edition / Platinum / S / SL / SV 5.6L V8

For 2023 Nissan TITAN PRO-4X / Platinum Reserve / S / SV 5.6L V8

For 2023 Nissan TITAN XD PRO-4X / Platinum Reserve / S / SV 5.6L V8

For 2023 INFINITI QX80 Luxe / Premium Select / Sensory 5.6L V8

For 2022 Nissan Armada Midnight Edition / Platinum / S / SL / SV 5.6L V8

For 2022 Nissan TITAN PRO-4X / Platinum Reserve / S / SV 5.6L V8

For 2022 Nissan TITAN XD PRO-4X / Platinum Reserve / S / SV 5.6L V8

For 2022 INFINITI QX80 Luxe / Premium Select / Sensory 5.6L V8

For 2021 Nissan Armada Midnight Edition / Platinum / S / SL / SV 5.6L V8

For 2021 Nissan NV2500 S / SV 5.6L V8

For 2021 Nissan NV3500 S / SL / SV 5.6L V8

For 2021 Nissan TITAN PRO-4X / Platinum Reserve / S / SL / SV 5.6L V8

For 2021 Nissan TITAN XD PRO-4X / Platinum Reserve / S / SL / SV 5.6L V8

For 2021 INFINITI QX80 Luxe / Premium Select / Sensory 5.6L V8

For 2020 Nissan Armada Platinum / Platinum Reserve / SL / SV 5.6L V8

For 2020 Nissan NV2500 S / SV 5.6L V8

For 2020 Nissan NV3500 S / SL / SV 5.6L V8

For 2020 INFINITI QX80 Limited / Luxe 5.6L V8

For 2019 INFINITI Q70 5.6 Luxe 5.6L V8

For 2019 INFINITI Q70L 5.6 Luxe 5.6L V8

For 2019 INFINITI QX80 Base / Limited / Luxe 5.6L V8

For 2018 INFINITI Q70 5.6 Luxe 5.6L V8

For 2018 INFINITI Q70L 5.6 Luxe 5.6L V8

For 2018 Infiniti QX80 Base 5.6L V8

For 2017 INFINITI Q70 5.6 5.6L V8

For 2017 INFINITI Q70L 5.6 5.6L V8

For 2017 INFINITI QX80 Base / Limited 5.6L V8

For 2016 INFINITI Q70 5.6 5.6L V8

For 2016 INFINITI Q70L 5.6 5.6L V8

For 2016 INFINITI QX80 Base / Limited 5.6L V8

For 2015 INFINITI Q70 5.6 5.6L V8

For 2015 INFINITI Q70L 5.6 5.6L V8

For 2015 Infiniti QX80 Base 5.6L V8

For 2014 INFINITI Q70 5.6 5.6L V8

For 2014 Infiniti QX80 Base 5.6L V8

For 2013 INFINITI M56 Base / X 5.6L V8

For 2013 INFINITI QX56 Base 5.6L V8

For 2012 INFINITI M56 Base / X 5.6L V8

For 2012 INFINITI QX56 Base 5.6L V8

For 2011 INFINITI M56 Base / X 5.6L V8

For 2011 INFINITI QX56 Base 5.6L V8

Product Selling Points

• Genuine OE Replacement – Manufactured to original equipment specifications for Nissan Armada, Titan, Titan XD, NV vans, and Infiniti QX80, Q70, M56, QX56 models equipped with the 5.6L V8 engine

• Laser Iridium Center Electrode – NGK Laser Iridium series features a double iridium center electrode, delivering exceptional ignitability, superior resistance to spark erosion, and consistent ignition performance over an extended service life

• Precision Engineering & Pre-Gapped – Factory-specified with M12×1.25 thread size, 26.5 mm thread reach, 16 mm hex size, and 0.8 mm electrode gap, ensuring a perfect fit straight out of the box

• Built-in Resistor for EMI Suppression – Resistor-type design effectively suppresses electromagnetic interference, protecting sensitive engine electronics including ECUs, ignition coils, and CAN bus systems

• Cross-Reference Compatibility – Fully interchangeable with 22401-1LA7C, 22401-EW61C, 22401-6CA1C, 22401-JK01D, APP5683, 0242140550, 9412, REA9WYPB4, IXEH22TT, and VFXEH22, providing flexible parts sourcing options while maintaining OE-grade performance standards