NGK IZFR5B Laser Iridium Spark Plug (4080)
Original price was: £26.57.£17.12Current price is: £17.12.
NGK IZFR5B Laser Iridium Spark Plug – Stock No. 4080
The NGK IZFR5B is a Laser Iridium spark plug designed for reliable ignition, clean combustion and long service life. The fine iridium centre tip needs less voltage to spark, which helps cold starts and throttle response. A platinum pad on the ground electrode keeps the gap stable over time, so performance stays consistent.
It suits standard engines and light performance upgrades. Expect smoother idle, steady power delivery and reduced misfires compared to worn plugs. Replace as a matched set for best results. Use our vehicle lookup or check the Vehicle Fitment tab to confirm it fits your engine.
| Part number | IZFR5B |
| NGK stock number | 4080 |
| GTIN | 087295140802 |
| Category | 686 – Spark Plug |
| Technology | Laser Iridium centre with platinum ground pad |
| Resistor | Yes |
| Heat range | 5 (NGK scale) |
| Thread diameter | 14 mm |
| Thread pitch | 1.25 mm |
| Reach | 19 mm |
| Hex size | 16 mm |
| Seat type | Flat seat with gasket |
| Tip projection | Projected |
| Factory gap | 1.1 mm (pre-set) |
| Centre electrode diameter | Approx. 0.6 mm iridium tip |
| Terminal type | Solid |
| Typical tightening torque | 18-25 Nm for 14 mm gasket seat in aluminium heads |
- Improves ignition efficiency and helps reduce misfires.
- Stable gap for longer life and consistent performance.
- Good cold-start behaviour and smooth idle.
Notes: Do not force-adjust the factory gap on iridium plugs. Always install on a cold engine with a new gasket and the correct torque. Use our vehicle lookup to confirm fitment before ordering.
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-4080 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
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DELIVERY INFORMATION
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Stock at Progressive Parts
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