Champion Spark Plugs Spark Plug 821

Champion L77JC4 Marine Spark Plug

Champion marine spark plugs are quality OEM replacements. The Champion L77JC4 Spark Plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. These marine spark plugs are designed to resist overheating under heavy engine loads.

Resists fouling

Superior corrosion resistance

Dependable and proven performance

Increased conductivity and heat control for good overall wear

Champion Spark Plug # 821