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OE Fine Wire Double Platinum
Bosch Double Platinum spark plugs are engineered to extend performance life and durability. The fine wire design of the center electrode improves ignitability and performance in your engine while the platinum tip on both the center and ground electrodes ensure longer life.

Center Electrode
  • 360 continuous laser welding to fuse the platinum firing pin promotes durability and longer life
  • Fine wire design delivers better ignitability and performance
  • Copper core provides broader heat range to resist pre-ignition and fouling
Ground Electrode
  • Laser welded platinum inlay promotes durability and longer life
  • Copper core (when required) provides broader heat range to resist pre-ignition
Nickel-plated shell with rolled threads
  • Provides complete anti-seize and corrosion protection
Ribbed insulator design
  • Prevents misfires due to flash-over
Pre-gapped
  • No need to gap for faster installation

Spark Plug Type Performance Differences

Center Electrode Core MaterialNickel-Yttrium and Copper and Platinum
Center Electrode Tip MaterialPlatinum
Gap Size1.3 mm
Ground ConfigurationStandard
Ground Electrode Core MaterialN/A
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Ground Electrode Tip MaterialNickel-Yttrium and Platinum
Hex Size16
Insulator MaterialCeramic
Manufacturer Heat Range7
Reach17.5 mm
Resistance6000
Seat TypeTapered
Short StyleNo
Thread Diameter14 MM

Warranty Information:
12 Months