Champion brand spark plugs has been a world leader in the manufacture of spark plugs for every kind of combustion engine for over 100 years.Spark Plug. "Champion Small Engine OE Replacement spark plugs feature a copper core center electrode allows for accurate control of heat range, optimizing the performance and longevity of the spark plug. They are the perfect OE replacement plug for lawn and garden applications and similar engines. Dependable performance and durability. Resists fouling. Superior corrosion resistance. ".