NGK DF7H-11B Spark Plug (Stock No. 1317)
The NGK DF7H-11B is a quality replacement spark plug designed for reliable ignition and smooth running. It helps your engine start cleanly, idle well, and respond better under load. It is a sensible upgrade over worn plugs if you want consistent performance and good fuel economy.
This plug uses NGK’s proven construction to resist fouling and heat. The heat range (7) balances everyday use with sustained motorway driving. The preset 1.1 mm gap gives a strong, stable spark in most factory ignition systems.
- Improves cold starts and throttle response
- Reduces misfires and rough idle compared with worn plugs
- Built for long service life and stable performance
Check fitment carefully. Spark plug sizing and reach must match your engine. Use our vehicle lookup or see the Vehicle Fitment tab before ordering.
| Part Category | 686 – Spark Plug |
|---|---|
| NGK Part Number | DF7H-11B |
| NGK Stock Number | 1317 |
| GTIN | 087295113172 |
| Heat Range | 7 (NGK scale) |
| Spark Gap | 1.1 mm (factory set) |
| Resistor | Non-resistor type |
| Construction | Copper core centre electrode, nickel alloy |
| Seat/Thread Details | Engine-specific – confirm exact dimensions for your vehicle |
Fitment guidance
Only use this plug if the thread size, reach, seat type, and heat range match your engine. For broad guidance only: this code is typically found in selected small-capacity petrol engines. Always confirm with the site’s vehicle lookup or the Vehicle Fitment tab.
The price displayed is for a single plug, please add the desired amount to your basket.


