NGK DIFR6D13 Spark Plug – Stock No. 94167
This NGK iridium spark plug delivers reliable ignition, smooth running, and long service life. The fine-wire iridium centre electrode needs less voltage to spark, which helps cold starts and steady idle. A platinum-tipped ground electrode supports consistent performance over many miles.
Use it as a quality replacement or when tuning for consistent combustion. It will not add power on its own, but it helps the engine burn fuel cleanly and efficiently when everything else is in good order.
| Part Number | DIFR6D13 |
| NGK Stock Number | 94167 |
| Category | 686 – Spark Plug |
| GTIN | 87295941676 |
| Technology | Laser Iridium centre electrode with platinum ground pad |
| Resistor | Yes |
| Heat Range | 6 (NGK scale) |
| Factory Gap | 1.3 mm |
| Electrode Design | Fine-wire iridium centre, tapered ground |
- Improves ignition reliability and cold starts.
- Stable idle and cleaner combustion under load.
- Long service life thanks to iridium and platinum tips.
Fitment
– Designed for petrol engines specified for NGK DIFR6D13. Use our vehicle lookup or check the Vehicle Fitment tab to confirm this exact part for your engine.
Installation notes: Plugs are factory-gapped. Avoid prying on the fine iridium tip. Torque to the vehicle maker’s spec using a calibrated wrench. Use a new washer if applicable.
The price displayed is for a single plug, please add the desired amount to your basket.


