(4 Pack) Champion 821M L77JC4 Marine Spark Plugs for Marine Applications Genuine

Important: To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim, and Engine in the eBay Compatibility Table. Please double-check the accuracy of your order before purchasing. 

ABOUT THE PRODUCT

  • 4 pack
  • Brand: Champion
  • Model: 821M L77JC4
  • Type: Marine Spark Plugs
  • Thread Diameter: 14mm
  • Seat Type: Gasket
  • Reach: 12.7mm (1/2")
  • Hex Size: 13/16" (21mm)
  • Terminal Type: Solid
  • Gap: .039" (1.0mm)
Center Electrode 
  • Material: Nickel
  • Type: Standard
  • Size: 2.5mm
  • Projection: Non-Projected
Ground Electrode
  • Material: Nickel
  • Type: Cut Back
  • Quantity: 1
Specifications
  • Resistor: No
  • Heat Range: 77
  • Torque Specs: Cast Iron: 26-30 lb. ft. Aluminum: 18-22 lb. ft.

PRODUCT FEATURES

  • Stainless-Steel Housing Resists Corrosion.
  • Conventional spark plug with nickel alloy electrodes.

OTHER SPECIFICATIONS

  • Copper core center electrode allows for increased conductivity and heat control.