Spark Plugs
Spark Plugs
Spark plugs deliver the spark that ignites the air–fuel mixture in each cylinder, so the right plug matters for reliable ignition on modified and high-output engines. This collection includes iridium, double platinum and racing spark plugs from NGK, HKS, APR and Dinan in heat ranges 7 to 10. Applications include Subaru, Honda, Mitsubishi, Ford, Audi, Volkswagen, Porsche and BMW engines. It is part of our Engine Management and Electrical range.
Shop by Product Type
Choosing the Right Part
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Engine code: Spark plugs are matched to the engine, not just the model. Applications in this collection include:
- Subaru EJ20, EJ25 and FA20
- Honda K20C1
- BMW N20, N54, N55, S55, N63, S63, B48, B58 and S58
- Audi/Volkswagen EA113, EA888, EA837, EA855, EA825 and EA839
- Porsche 9A2
- Chassis code: Use the chassis code to confirm your model. Examples include Honda Civic Type R FK8 and FL5, Mitsubishi Lancer Evolution 8 (CT9A), Ford Focus RS LZ, Audi RS3 8V and 8Y, and Subaru WRX, Forester and Levorg (VA, SJ, VM).
- Heat range: Each listing states its heat range (7, 8, 9 or 10). Choose the heat range listed for your engine and level of modification. Compare numbers only within the same brand's numbering system.
- Plug type: Options include NGK Iridium, Laser Iridium, Double Platinum and Racing Competition, HKS Super Fire Racing, APR Iridium Pro and Dinan Iridium.
- Thread and seat: Dinan BMW plugs are listed as 12mm x 26.5mm x 14mm, in HV and Flat versions. Select the version listed for your engine.
- Quantity: Some listings are sets of 4. Others are sold individually, so order one per cylinder.
Installation & What You'll Need
Installation by a professional is recommended. When fitting, follow these guidelines:
- Work on a cool engine.
- Use a suitably sized spark plug socket and a torque wrench.
- Check the gap and tightening torque against the plug or vehicle manufacturer's specifications.
- Replace all plugs as a set.
- Inspect the ignition coils and boots while they are removed.
FAQ
What does spark plug heat range mean?
Heat range describes how readily a plug transfers heat from its tip to the cylinder head. Each listing shows its heat range, so match it to the range specified for your engine and modifications.
Are these spark plugs sold individually or in sets?
Both. Some listings are sets of 4 and others are single plugs, so check the product title and order enough for every cylinder.
How do I find the right spark plug for my car?
Start with your engine code and chassis code, then choose the heat range listed for your application. If you are unsure, contact our team before ordering.
Why are there HV and Flat versions of the Dinan BMW plugs?
Dinan lists different versions for different BMW engines. Select the version whose title includes your engine code.
Need help choosing? Contact our team at sales@chicaneaustralia.com.au.
