Champion L77JC4 821M Marine Spark Plug (NLA)

Champion L77JC4 821M Marine Spark Plug (NLA)
This part# has been discontinued. Champion 821 L77JC4 spark plug may be used as a replacement.

• Shell
• Thread Diameter 14mm
• Thread Pitch 1.25mm
• 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
• Quantity1

• Specifications
• Resistor No
• Heat Range77
• Torque Specs: Cast Iron: 26-30 lb. ft. Aluminum: 18-22 lb. ft.