NGK ZFR5BIX Iridium IX Spark Plug – Stock No. 93274
The NGK ZFR5BIX is a fine-wire iridium spark plug designed for reliable ignition, clean combustion, and long life. It helps cold starts, smooth idle, and throttle response. It also resists fouling in daily use and maintains a stable spark under load.
Use this if your engine requires a 14 mm thread plug with a projected tip and gasket seat. It suits many modern petrol engines that specify NGK heat range 5 plugs. Please use the vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
- 0.6 mm iridium centre electrode for a strong, consistent spark
- Tapered ground electrode to reduce quench and improve flame growth
- Resistor type to reduce electrical noise affecting the ECU and audio
- Trivalent plating for corrosion resistance and easy removal
| Part Number | ZFR5BIX |
| NGK Stock Number | 93274 |
| GTIN | 87295932742 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Flat gasket |
| Heat Range | 5 (NGK scale) |
| Resistor | Yes |
| Centre Electrode | Iridium, 0.6 mm fine wire |
| Ground Electrode | Nickel alloy, taper cut |
| Tip Projection | Projected |
| Preset Gap | 0.8 mm |
| Terminal Type | Solid terminal nut |
Note: Always check your vehicle’s specifications for correct heat range and gap. Adjust 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.


