NGK IZFR6P7 Iridium Spark Plug – Stock 97153
The NGK IZFR6P7 is a high-quality iridium spark plug for reliable ignition under road and performance use. It uses a fine iridium centre electrode for a strong, stable spark and long service life. The projected tip helps efficient combustion for smooth idle and clean response.
Use this plug to maintain consistent performance, especially on tuned or hard-driven petrol engines. It is pre-gapped and resistor-equipped to reduce electrical noise that can affect the ECU.
- Fast, consistent starts and smooth idle
- Strong spark for clean combustion and throttle response
- Long life thanks to iridium centre and robust ground design
Always confirm fitment with the vehicle lookup or the Vehicle Fitment tab before ordering.
| Specification | Detail |
|---|---|
| Part Number | IZFR6P7 |
| NGK Stock Number | 97153 |
| Category | 686 – Spark Plug |
| GTIN | 87295971536 |
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 |
| Reach (thread length) | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Flat seat with gasket |
| Projected Tip | Yes |
| Resistor | Yes |
| Heat Range | 6 (NGK scale) |
| Centre Electrode | Fine iridium |
| Ground Electrode | Nickel with precious metal pad |
| Factory Gap | 0.7 mm |
Fitting and setup
Install into a cool engine. Clean the seat and threads. Do not use excessive anti-seize. Tighten to the correct torque for a 14 mm gasket plug as per your vehicle manual. Check and adjust the gap only if the manufacturer specifies a different setting.
The price displayed is for a single plug, please add the desired amount to your basket.


