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Designed specifically for the performance enthusiast Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling.
NGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.
The NGK Iridium IX Spark Plugs utilise a 0.6mm laser welded fine iridium tip which ensures high durability and a consistently stable spark along with a tapered ground electrode which minimizes electrical quenching effect. The longer insulator nose prevents fouling, the corrugated ribs on the insulator prevent flashover and a triple gasket seal eliminates combustion gas leakage.
To find the correct spark plugs for your vehicle please use our online lookup or contact us for more help.
| Spanner Size | 16 |
| Thread Size | M14 |
| Thread Length [mm] | 25 |
| Thread Pitch [mm] | 1,25 |
| Spark Plug | Fixed SAE connector |
| Spark Plug | Iridium Middle Electrode |
| Spark Plug | 1 - Earthed Electrode |
| Spark Plug | Interference Suppression 5 kOhm |
| Spark Plug | with taper gasket seat |
| Electrode Gap [mm] | 1,1 |
Notes: Extra long reach thread. 26.5mm gasket type or 25mm taper seat type.
Spark Plug Health Check
Use Spark Plugs To Check Your Engine Health
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Heat Ranges Explained
Learn what a spark plugs heat range means, and how it can effect your engine
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Heat Cross Reference
Use our spark plug heat range cross reference table
Cross Reference Heat Range
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