Champion QL77PP Double Platinum Spark Plug - 943M

Platinum tipped center electrode and platinum pad on ground electrode provide long life and minimal wear. Tapered electrodes create a sharper spark focus and reduce quenching. Electrodes use heat-active alloy to reach operating temperatures quickly and maintain stable temperatures under varying engine loads. Triple sealed interior and copper core reduce failure due to heat and stress.

Specifications:

• Shell:
  • Thread Diameter: 9/16" (14 mm)
  • Thread Pitch: 1/16" (1.25 mm)
  • Seat Type: Gasket
  • Reach: 1/2" (12.7 mm)
  • Hex Size: 13/16" (21 mm)
  • Terminal Type: Solid
  • Gap: 0.024" (0.6 mm)
• Center Electrode:
  • Material: Platinum
  • Type: Standard
  • Size: 3/32" (2.5 mm)
  • Projection: Non-Projected
• Ground Electrode:
  • Material: Platinum
  • Type: Standard
  • Shape: Taper Cut
  • Quantity: 1
• General:
  • Resistor: Yes
  • Resistor Type: Inductive
  • Heat Range: 77
  • Torque: 26 - 30 lb. ft. (Cast Iron), 18 - 22 lb. ft. (Aluminum)