Bosch Double Iridium Spark Plug

Bosch Double Iridium spark plugs are OE-style fine wire iridium spark plugs built for both strong performance and long service life. Each plug has an iridium firing pin and an iridium ground electrode inlay. They are a direct replacement for original-equipment plugs in modern gasoline engines, including Gasoline Direct Injection (GDI) engines.

Key Features:

• Double iridium design: The iridium center electrode and iridium ground electrode inlay give the plug high performance and durability.
• Long service life: Bosch rates these plugs for up to 4 times the life of standard copper spark plugs.
• Ultra-fine wire firing pin: It improves ignitability and lowers the voltage needed to fire the plug.
• Laser-welded tapered ground electrode: The tapered shape reduces flame shrouding, which supports better combustion.
• 360-degree continuous laser weld: It fuses the precious metal firing pin to the base for durability.
• OE-matched spark position: It is designed to work with GDI engine technology.
• Copper core: It widens the heat range and helps resist pre-ignition and fouling.
• Nickel-plated shell: It resists corrosion, so no anti-seize is needed.
• Factory pre-gapped: The plug is set to the OE specification, so it can be installed right out of the box.

Bosch supplies original-equipment spark plugs to many automakers. Double Iridium plugs give OE fit, form, and function and meet or exceed manufacturer design requirements for domestic, Asian, and European engines. Choose the individual part number that matches your application.