Champion marine spark plug L77JC4. Champion marine spark plugs are specifically designed to resist potential salt and spray damage and corrosion. Many models use special resistors to prevent radio interference and damage to the CDI ignition systems often used in outboard motors.

Product Features:

• Champion copper plus spark plug technology began as an automotive OE plug and today is widely used in a variety of power equipment applications
• The nickel alloy center and ground electrode provide good wear characteristics and the extrusion of copper into the center electrode allows for an increase in conductivity and heat control
• Champion copper plus spark plugs are a great choice for OE-replacement on older automotive engines, lawn and garden applications and similar engines
• Provides dependable performance and durability
• The copper core center electrode allows accurate control of heat range, optimizing plug performance and longevity