NGK Spark Plug has patented a spark plug design with an insulator, metallic shell, and center electrode. The unique feature includes a step portion on the insulator and a curved surface on the ...

The difference between tapered and gasket seat spark plugs comes down to how they seal an engine, and using the wrong type ...

Niterra has been granted a patent for a spark plug design with a unique center electrode structure. The spark plug features a specific configuration that enhances performance and efficiency. The ...

A "hot" spark plug has a longer insulator that prevents heat transfer into the water jackets. It keeps more heat in the tip of the spark plug, which helps burn off combustion chamber deposits. But if ...

Your engine’s spark plugs are one of its smallest and most important, parts. We look at some of the best. The engine in your car, truck, or crossover operates on the simple principle of capturing the ...