APR Iridium Pro Spark Plug EA825/EA839/9A2 Heat Range 10

APR Iridium Pro Spark Plug - EA825/EA839/9A2 - Heat Range 10

APR builds its ignition components to work as a system, and the Iridium Pro Spark Plug is engineered to pair with APR Ignition Coils for a stronger, more consistent spark on the EA825, EA839 and 9A2 engine families. The iridium tip and heat range 10 rating are built to hold up under sustained heat and load, giving a firm foundation whether the engine is stock or running higher boost.

This listing covers spark plugs suited to the EA825, EA839 and 9A2 engine codes as a direct fit upgrade. Confirm your specific engine code against the compatibility tab before ordering.

Note: Heat Range 10 plugs are tuned for modified engines running increased boost and power. Stock or mildly tuned vehicles may suit a different heat range — check with APR's fitment guide or our team if unsure.

Key Features

• Iridium electrode tip for a stronger, more consistent spark
• Heat Range 10 rating for higher boost and power applications
• Designed to pair with APR Ignition Coils as a matched ignition system
• Direct fit upgrade — no modification required
• Supports smoother idle and sharper throttle response
• Built to perform reliably under sustained heat and load

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your engine code and configuration before ordering.

Not sure if this spark plug suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.