Automotive spark plugs, glow plugs, and ignition system components are the company's primary product lines. With a reputation for excellence and a dedication to innovation, NGK provides premium products that guarantee dependable ignition, ideal engine performance, and fuel economy. NGK spark plugs are made with cutting-edge materials and techniques, including ceramic insulators and electrodes made of precious metals, to provide constant spark energy and remarkable endurance. NGK spark plugs are made to fit the unique demands of your engine, ensuring efficient combustion and lowering emissions whether you drive a gasoline or diesel-powered car. NGK supplies glow plugs for diesel engines, ignition coils, and other ignition system parts in addition to spark plugs, all of which are essential for starting your car and ensuring a smooth operation.