NGK IZFR5R7G Laser Iridium Spark Plug (94123)
Original price was: £21.84.£16.56Current price is: £16.56.
NGK IZFR5R7G Laser Iridium Spark Plug – 94123
The NGK IZFR5R7G is a Laser Iridium spark plug designed for precise ignition, stable idle, and long service life. The fine-wire iridium tip needs less voltage to spark, which helps cold starts and reduces misfires under load. A platinum-tipped ground electrode resists wear, keeping performance consistent over many miles.
Use this plug when you want dependable ignition and OE-level reliability, with improved durability over standard copper plugs. It suits petrol engines that specify a 14 mm, projected-tip, long-reach plug with an NGK heat range of 5. For exact fitment, use the vehicle lookup or check the Vehicle Fitment tab.
| Part Number | IZFR5R7G |
| NGK Stock Number | 94123 |
| GTIN | 87295941232 |
| Category | 686 – Spark Plug |
| Technology | Laser Iridium (fine-wire iridium centre, platinum ground pad) |
| Resistor | Yes |
| Heat Range (NGK) | 5 |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Flat seat – gasket |
| Tip Projection | Projected insulator |
| Factory Gap | 0.7 mm (preset – do not force adjust) |
| Centre Electrode | Iridium, approx. 0.6 mm fine wire |
| Ground Electrode | Nickel with platinum pad |
| Terminal | Solid |
- Sharper spark for cleaner combustion and smoother idle.
- Reliable firing under boost or high load due to lower required voltage.
- Long life from iridium/platinum design, keeping gap stable over time.
Note: Always confirm compatibility using the vehicle lookup or the Vehicle Fitment tab. Fit as a matched set and torque to the manufacturer’s spec.
The price displayed is for a single plug, please add the desired amount to your basket.
| Weight | 0.05 kg |
|---|---|
| Dimensions | 10 × 3 × 3 cm |
| Brand |
NGK-94123 Confirmed Fitment
Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions
UK Shipping
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DELIVERY INFORMATION
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DELIVERY INFORMATION
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