NGK LKR7DI-12 Iridium Spark Plug (Stock 90779)
The NGK LKR7DI-12 is a high-quality iridium spark plug designed for clean, reliable ignition. It helps the engine start easily, idle smoothly, and pull strongly across the rev range. The iridium centre electrode needs less voltage to fire, which improves cold starts and reduces misfires under load. It is built for long service life, keeping performance consistent over time.
Tip: This plug is factory gapped. Avoid bending the fine iridium tip.
- Stable spark under boost and high load
- Long life with consistent performance
- Suitable for many modern petrol engines that specify this exact plug
| Manufacturer | NGK |
| Part Number | LKR7DI-12 |
| NGK Stock Number | 90779 |
| GTIN | 87295907795 |
| Category | 686 – Spark Plug |
| Plug Type | Resistor |
| Heat Range | 7 (NGK scale) |
| Electrode | Iridium centre, precious-metal ground pad |
| Factory Gap | 1.2 mm |
| Recommended Use | OE replacement or mild performance upgrades |
| Service Life | Extended vs. standard nickel plugs |
Fitment guidance
Use this plug only where LKR7DI-12 is specified by the vehicle manufacturer or tuner. For accuracy, use the site’s vehicle lookup or check the Vehicle Fitment tab.
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 |


