Champion RV8C Nickel Spark Plug - 121

Conventional spark plug with nickel alloy electrodes. Copper core center electrode allows for increased conductivity and heat control.

Specifications:

• Shell:
  • Thread Diameter: 9/16" (14 mm)
  • Thread Pitch: 1/16" (1.25 mm)
  • Seat Type: Tapered
  • Reach: 7/16" (11 mm)
  • Hex Size: 5/8" (16 mm)
  • Terminal Type: Solid
  • Gap: 0.039" (1.0 mm)
• Center Electrode:
  • Material: Nickel
  • Type: Standard
  • Size: 3/32" (2.5 mm)
  • Projection: Non-Projected
• Ground Electrode:
  • Material: Nickel
  • Type: Standard
  • Quantity: 1
• General:
  • Resistor: Yes
  • Resistor Type: SAC9
  • Heat Range: 8
  • Torque: 7 - 15 lb. ft. (Cast Iron), 7 - 15 lb. ft. (Aluminum)