The alphanumeric string followed by “spark plug cross reference” designates a process of identifying equivalent spark plugs from different manufacturers. The “4106j” portion likely represents a specific part number assigned by a particular spark plug manufacturer. The overall phrase describes the action of finding replacement spark plugs from other brands that match the specifications and performance characteristics of the original “4106j” plug. For example, an individual searching for an alternative to a “4106j” plug might use a cross-reference chart or online tool to find compatible options from brands like NGK, Bosch, or Denso.
This identification process is vital for several reasons. Primarily, it allows vehicle owners and mechanics to source spark plugs when the original part is unavailable or when a different brand is preferred. It offers flexibility in choosing parts based on price, availability, or perceived performance benefits. Historically, cross-referencing spark plugs became increasingly important with the proliferation of vehicle manufacturers and the diverse range of engine designs requiring specific ignition components. It ensures proper engine function, prevents potential damage, and can optimize fuel efficiency.
