Description
  • Accel 2418 next-generation U-groove spark plugs with ground electrodes, copper glass inner seal, and electric heat seal to prevent leaks in high-compression engines
  • 12mm thread, used with 18mm wrenches
  • Allows the spark to develop a larger, fuller flash for more complete combustion
  • Extra wide heat range
  • Sold in pairs
  • For models:
    • Sportster XL 1986-2022
    • Twin Cam 1999-2017
  • Replaces OEM: 32362-04A 6R12 31600106