Top 10 Spark Plug Suppliers in 2025
As global automotive production rebounds and vehicle service markets expand, demand for high-quality spark plugs continues to grow. Spark plugs are critical ignition components in gasoline engines, directly influencing combustion efficiency, fuel economy, emissions, and service life. With market emphasis shifting toward OEM quality, precious-metal electrode technologies (iridium, platinum) and reliable aftermarket logistics, selecting the right spark plug supplier and spark plug manufacturer is a strategic procurement decision in 2025. This guide profiles the Top 10 global spark plug suppliers , emphasizing company background, key strengths, official websites, and suitability for B2B buyers such as wholesalers, distributors, and service parts importers. NGK Spark Plug Co., Ltd. — Japan / Global Overview: Niterra, formerly known globally as NGK Spark Plug Co., Ltd., is one of the largest and most respected spark plug manufac...