Dinan Iridium Spark Plug

Dinan Iridium Spark Plugs are performance iridium spark plugs that suit tuned engines and many stock engines. They are built around an iridium center electrode with a copper core. Iridium is one of the strongest electrode materials available. It has a higher melting point than copper, silver or platinum.

Key Features:

• Iridium electrode with copper core: It is harder and stronger than standard plug materials. It also dissipates heat more easily and resists melting and cracking.
• Cooler operation: The plugs run cooler than stock plugs and resist preignition better.
• Lower voltage requirement: The plugs need less voltage to produce a strong spark.
• Projected insulator design: This design supports efficient ignition.
• Optimized electrode design: The electrode is shaped for hard-to-ignite fuels such as ethanol.
• Ceramic insulator: Each plug uses a ceramic insulator with a 14mm bi-hex.
• Matched to Dinan coils: The plugs pair well with Dinan ignition coils.

Dinan offers these plugs in different terminal and seat configurations. Check the specifications of the exact part number you choose for thread reach, heat range and terminal type.

Whether you are running a tuned, higher-output engine or want a cooler-running, longer-lasting plug for a stock engine, Dinan Iridium Spark Plugs give you a durable ignition upgrade.