NGK ILTR5D (Stock No. 5476) – Laser Iridium Spark Plug
The NGK ILTR5D is a Laser Iridium spark plug designed for clean, reliable ignition and long service life. It uses a fine iridium centre tip with a platinum pad on the ground electrode. This reduces voltage demand, improves cold starts, and keeps performance stable as mileage builds. It is a good choice for lightly tuned petrol engines and daily-driven cars where consistency and durability matter.
The resistor design cuts radio noise and protects sensitive electronics. The factory-set gap is precise and stable, so there is no need to adjust it. Use one plug per cylinder and replace as advised by the vehicle maker or tuning setup.
| Manufacturer | NGK |
|---|---|
| Part Number | ILTR5D |
| NGK Stock Number | 5476 |
| GTIN | 087295154762 |
| Category | 686 – Spark Plug |
| Plug Type | Laser Iridium |
| Centre Electrode | Fine iridium tip |
| Ground Electrode | Platinum pad |
| Resistor | Yes |
| Heat Range (NGK) | 5 |
| Gap | Factory set – do not re-gap |
- Sharper spark for smoother idle and stronger throttle response.
- Stable ignition under boost and high cylinder pressures.
- Longer service life than standard nickel plugs.
- OE-grade materials and heat rating for dependable performance.
Important: Always confirm fitment using the vehicle lookup on our site or check the Vehicle Fitment tab. Install to the correct torque and follow the vehicle maker’s interval.
The price displayed is for a single plug, please add the desired amount to your basket.


