NGK Iridium IX Spark Plug LZTR5AIX-13 (Stock No. 2314)
This NGK Iridium IX spark plug delivers a strong, reliable spark for cleaner combustion and steady performance. The fine iridium tip needs less voltage to fire, which helps cold starts and throttle response. A built-in resistor reduces electrical noise that can affect the radio and ECU.
Use this plug where an NGK LZTR5AIX-13 is specified. It suits many petrol engines that require a 1.3 mm preset gap and a heat range 5 plug. Always confirm fitment with the vehicle lookup or the Vehicle Fitment tab.
- Fine iridium centre electrode for a consistent spark and long life
- Resistor design to cut interference with electronics
- Preset 1.3 mm gap for easy installation
- Durable ground electrode for stable ignition under load
Technical specifications
| Part category | 686 – Spark Plug |
| Part number | LZTR5AIX-13 |
| NGK stock number | 2314 |
| GTIN | 087295123140 |
| Series | Iridium IX |
| Heat range | 5 (NGK scale) |
| Resistor | Yes |
| Preset spark gap | 1.3 mm |
| Centre electrode | Fine iridium tip |
| Ground electrode | Nickel alloy |
Important: Do not force-adjust the gap on iridium fine-tip plugs. Follow the vehicle manufacturer’s torque settings and service intervals.
The price displayed is for a single plug, please add the desired amount to your basket.
Additional Information
| Weight | 0.05 kg |
|---|---|
| Dimensions | 10 × 3 × 3 cm |
| Brand |


