Established in 1936, NGK Spark Plugs has become the world leader in spark plug and oxygen sensor design. With a focus on technology, innovation, and world-class quality, NGK manufactures spark plugs for virtually every major original equipment manufacturer and for virtually every automotive, motorcycle, marine and small engine application. Committed to excellence, NGK delivers with state-of-the-art manufacturing, advanced research and development and a customer-centric approach to design and engineering.