Learning Center

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  Tapered vs. Gasket Seat

  Spark plug seats are not interchangeable...

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  What is an Inductive Resistor?

  In an inductive resistor design, a coiled nickel wire is inserted into the stem and held in place by a spring...

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  Spark Plug Insulator Design

  What is the spark plug insulators purpose?

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  ISO vs. JIS Spark Plug Heights

  What are ISO and JIS plug heights?

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  Rolled vs. Cut Threads

  A spark plugs manufacturing process affects installation and structural integrity...

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