Our Story

With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands.

OE Heritage

We partner with OEMs to develop the latest innovations, making NGK/NTK the supplier of choice for nearly every manufacturer. With world-class quality and engineering, our expertise goes beyond the aftermarket to drive the automotive industry forward.

Manufacturing

NGK has built a reputation for quality and reliability with state-of-the-art facilities across the country. As a leader in product design and manufacturing, our team strives to bring the best technology to market.

A history of innovation.

Since 1936, NGK Spark Plugs has been the world leader in technology, innovation and world-class quality in the design of spark plugs and oxygen sensors. With the expansion of our ignition product, technical sensor and vehicle electronics lines, we are ushering in a new chapter of advancement.

1966 NGK Spark Plugs (U.S.A.), Inc. is established as a subsidiary of NGK Spark Plug Co. Ltd. 1976 NGK Spark Plugs Mfg. (U.S.A.), Inc. is established to assemble spark plugs in the United States. 1978 NTK Ceramics (U.S.A.), Inc. is established. 1981 Production of NGK spark plugs begins in our Irvine, California manufacturing facility. 1982 First manufacture of automotive oxygen sensors. 1984 NGK Spark Plugs Mfg. (U.S.A.), Inc. is established to assemble spark plugs in the United States. 1985 Started the manufacture of ceramic glow plugs. 1991 World-wide production of NGK spark plugs exceeds 5 billion units. 1994 NGK Spark Plugs (U.S.A.), Inc. establishes a new manufacturing facility in Sissonville, West Virginia to produce oxygen sensors. 1995 Production of NTK Oxygen Sensors begins in Sissonville, West Virginia facility. 1996 NGK Spark Plugs (U.S.A.), Inc. establishes the operation of newly created Technical Center in Wixom, Michigan. 1997 The manufacturing of NGK Iridium spark plugs begins. 2000 The manufacturing of NGK Iridium IX spark plugs begins. 2004 The manufacturing of a new, high-temperature ceramic glow plug begins. 2005 Wixom, Michigan facility expands to serve NGK Spark Plugs (U.S.A.), Inc. corporate headquarters. 2008 Production of NGK spark plugs begins in a newly expanded Sissonville, West Virginia facility. 2011 750,000,000 spark plugs produced at Irvine, California facility. 2016 NGK Spark Plugs (U.S.A.), Inc. launches new ignition coil line to the aftermarket. 2018 NGK Spark Plugs (U.S.A.), Inc. expands its NTK technical sensor line to the aftermarket.