The alphanumeric string adopted by “spark plug cross reference” designates a strategy of figuring out equal spark plugs from completely different producers. The “4106j” portion seemingly represents a particular half quantity assigned by a selected spark plug producer. The general phrase describes the motion of discovering substitute spark plugs from different manufacturers that match the specs and efficiency traits of the unique “4106j” plug. For instance, a person looking for a substitute for a “4106j” plug would possibly use a cross-reference chart or on-line instrument to seek out suitable choices from manufacturers like NGK, Bosch, or Denso.
This identification course of is important for a number of causes. Primarily, it permits automobile house owners and mechanics to supply spark plugs when the unique half is unavailable or when a distinct model is most well-liked. It affords flexibility in selecting elements based mostly on worth, availability, or perceived efficiency advantages. Traditionally, cross-referencing spark plugs turned more and more necessary with the proliferation of auto producers and the various vary of engine designs requiring particular ignition parts. It ensures correct engine operate, prevents potential injury, and might optimize gas effectivity.
