BG’s patented BlackJack™ Extensions & Leads are the next major advancement in ignition system technology.

Choose BlackJack™ for:

  • Superior Dielectric Strength
  • Rugged Construction
  • Maximum Survivability in High-Temp Applications
  • Suppressing Flashover with Increased Sealing Pressure to Plug
  • Extra-Long Service Life

BlackJack™ 5000 Series – Configure by Spark Plug / Coil Model

BlackJack™ Extensions for Caterpillar G3520C & G3600 Engines

BlackJack™ Telescoping Extensions for Severe-Duty Waukesha Engines