Home - NGK Spark Plugs
As the largest supplier and manufacturer of spark plugs and oxygen sensors for import and domestic vehicles, we are the industry experts you can count on. With rigorous testing standards and countless first to market technologies, NGK, NTK as leaders in innovation.
Spark Plugs - NGK Spark Plugs
NGK spark plugs push the limits of performance and innovation, bringing the most advanced technology to today’s high-efficiency engines. From the high-tech Ruthenium HX™ to the industry standard OE-style spark plugs, NGK drives the future of spark plug engineering.
Spark Plug Basics - NGK Spark Plugs
Spark plugs have been around as long as internal combustion engines have and are often a misunderstood component. This basic guide is designed to assist the technician, hobbyist or race technician in understanding, using and troubleshooting spark plugs.
How do I "read" a spark plug? - NGK Spark Plugs
This video describes in detail the best process to examine a spark plug and assess its condition. Learn how to analyze your engine's overall operating condition just by looking at your spark plugs. Find this and other DIY tips on our resource page.
Products - NGK Spark Plugs
NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. Learn where to buy NGK and NTK parts.
Part Finder - NGK Spark Plugs
Search by application to find the part you need from NGK or NTK.
Ignition Parts - NGK Spark Plugs
Get your engine running with a full line of spark plugs, coils and wire sets from NGK. Our ignition parts cover 95% of import and domestic vehicles and are engineered to the highest durability and operational standards to meet or exceed OE requirements.
5 Things You Should Know About Spark Plugs
The five things you should know about spark plugs include information on anti-seize, corona stain, gapping fine wire, torque and copper spark plugs.
Contact Us - NGK Spark Plugs
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Our Story - NGK Spark Plugs
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 …