NGK is a market-leading manufacturer of automotive aftermarket spark plugs, ignition, and sensor parts, trusted by professionals around the globe. Shop NGK products with NAPA Auto Parts online.

Founded in 1936 as a spark plug manufacturer, the automotive field has always been NGK's core competence. Today, it has expanded to become a market-leading manufacturer of aftermarket ignition and sensor parts. Over the last 80 years, the automotive specialist has developed an excellent reputation and NGK are trusted by professionals around the globe.