NGK ILZKGR7B8G Laser Iridium Spark Plug (Stock No. 97434)
The NGK ILZKGR7B8G is a Laser Iridium spark plug built for reliable ignition under high load and temperature. It provides a strong, consistent spark, helps cold starts, and resists fouling in stop-start and short trips. The fine iridium centre electrode needs less voltage to fire, which can improve throttle response and stability at idle.
Use it as a performance-friendly OE replacement where specified by the manufacturer. It suits many modern turbocharged, direct-injection petrol engines that require an NGK heat range 7, M12 plug with long reach. Always confirm fitment with the vehicle lookup or the Vehicle Fitment tab.
- Strong spark and stable idle from fine iridium centre electrode
- Long service life via iridium centre and platinum ground pad
- Good knock resistance and reliable performance under boost
| Part Number | ILZKGR7B8G |
| NGK Stock Number | 97434 |
| GTIN | 87295974346 |
| Category | 686 – Spark Plug |
| Plug Type | Laser Iridium (iridium centre, platinum ground) |
| Thread Diameter | M12 x 1.25 |
| Reach (thread length) | 26.5 mm |
| Hex Size | 14 mm |
| Seat Type | Flat seat with gasket |
| Heat Range | 7 (NGK scale) |
| Factory Gap | 0.8 mm |
| Resistor | Yes |
| Electrode Design | Fine-wire iridium centre, tapered cut ground with platinum pad |
| Projected Tip | Yes |
| Typical Torque | 18 – 22 Nm (aluminium head, new gasket) |
Fitment Guidance
This specification is common on many late-model turbo petrol engines from major manufacturers. Use the site’s vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
Install Tips
– Fit to a cold engine. Hand-thread first to avoid cross-threading.
– Check gap if the application requires it. Do not force the fine iridium tip.
– Torque to spec. Re-torque only if the plug has been removed and the gasket re-used.
If unsure, have a qualified technician install and check for the latest OE gap and torque values.
The price displayed is for a single plug, please add the desired amount to your basket.


