NGK DIFR5E11 Spark Plug – Stock No. 91112
This NGK spark plug is built for clean ignition, steady idle, and reliable performance. The iridium fine-wire centre electrode needs less voltage to fire, which helps cold starts and smooth response. It is also resistant to wear, so performance stays consistent over a long service life.
Use this plug when you want dependable ignition under daily driving and light performance use. It helps maintain fuel economy and reduces misfires compared with worn or standard copper plugs.
- Strong spark with low voltage demand for easier starts
- Stable combustion for smoother running and throttle response
- Long service life thanks to iridium centre electrode
Always check fitment with our vehicle lookup or the Vehicle Fitment tab before ordering.
| Part Number | DIFR5E11 |
|---|---|
| NGK Stock Number | 91112 |
| Category | 686 – Spark Plug |
| GTIN | 87295811122 |
| Technology | Iridium fine-wire centre electrode |
| Heat Range | 5 (NGK scale) |
| Resistor | Yes |
| Preset Spark Gap | 1.1 mm |
Compatibility Guidance
This plug suits petrol engines specified for an NGK heat range 5 iridium plug with a 1.1 mm gap. Fit varies by engine design. Please confirm with the site’s vehicle lookup or see the Vehicle Fitment tab for full details.
The price displayed is for a single plug, please add the desired amount to your basket.


