Description
Enhance the performance and reliability of your BMW engine with the Dinan Iridium Spark Plug, designed for high-performance and high-boost applications. Featuring a heat range 9 specification, this spark plug is constructed with a durable iridium alloy electrode and a copper core to ensure superior thermal conductivity, resistance to pre-ignition, and long-term durability.
With a 12mm thread diameter, 26.5mm thread reach, 14mm bi-hex nut, and flat seat design, this plug is tailored for demanding engine environments. The HV (high voltage/nut terminal) type ensures a secure connection to ignition systems and is an excellent pairing with Dinan ignition coils. This plug is ideal for tuned or modified engines, including BMW's N54, N55, N20, S55, N63/N63TU, and S63/S63TU platforms.
Important Compatibility Note: This plug is 3 steps colder than OEM for N54 engines and 2 steps colder for N55. It is recommended only for tuned or high-boost configurations. Use on stock N54 or N55 engines may result in plug fouling, misfires, and reduced performance due to the inability to reach self-cleaning temperature.
Key Features:
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Heat range 9 for optimized performance in high-temperature, high-pressure conditions
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Iridium electrode with copper core for enhanced durability and spark consistency
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HV terminal (nut style) for high-voltage coil compatibility
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Flat seat, 12mm x 26.5mm thread, 14mm bi-hex nut configuration
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Compatible with ethanol-based fuels (E85 safe)
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Lower voltage requirement with cooler operation than stock plugs
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Projected insulator design for efficient combustion
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Excellent match with Dinan ignition coils
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OEM Cross References: 12120039664, 12120038896, 12120038704
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Manufactured in the EU
Vehicle-Specific Heat Range Details:
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3 steps colder than OEM for N54 engines
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2 steps colder than OEM for N55 engines
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1 step colder than OEM for N20, S55, N63, and S63 engines
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
