Disclaimer:Any information provided on this website is for general guidance only. It does not constitute any contractual term, representation or warranty. As such, Sparkplugs Limited takes no responsibility in respect of any claim whatsoever and howsoever caused arising from use of any information on this website. Prices may be subject to change without warning. The presence of a spark plug in our price lists does not necessarily guarantee availability.

It is possible, with care, to decode the construction of NGK spark plugs. This can help in identifying suitable replacement parts from NGK or even equivalent from other manufacturers. We would not recommend using this as your sole method of identifying replacement parts unless you are confident in using the decode.
Below is NGK's spark plug part number decode. This applies to standard copper and platinum plugs. There are additional decodes available for NGK US specification plugs.


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