bidcoin
07.05.2021 12:20:14
EA 12mm x 1.25mm, 1.043", gasket/joint, 14mm
See full version: What do the n in champion spark plug numbers mean
EA 12mm x 1.25mm, 1.043", gasket/joint, 14mm
L 14mm x 1.25mm, .500", gasket/joint, 13/16" here
EC 14mm x 1.25mm, 1.043", gasket/joint, 5/8"
DJ 14mm x 1.25mm, .307", taper, 5/8"
It is possible, with care, to decode the construction of Denso sparkplugs. This can help in identifying suitable replacement parts from Denso 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.
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. here
Below is Denso's spark plug part number decode. This applies to standard copper, platinum and Iridium power plugs. If you find it difficult to read, click on the code to open in a larger window. You may need to click again to zoom in depending on your web browser.
It is possible, with care, to decode the construction of Champion sparkplugs. This can help in identifying suitable replacement parts from Champion 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 Champion's spark plug part number decode. This applies to standard copper and platinum plugs. If you find it difficult to read, click on the code to open in a larger window. You may need to click again to zoom in depending on your web browser.
A spark plug’s heat range is the degree to which it disperses heat. Spark plugs with high heat dispersal are referred to as cold, while plugs with less heat-dissipating characteristics are known as hot.
While the primary function of the spark plugs is providing the spark to ignite the air/fuel combination and start the engine, an equally important function of the engine’s spark plugs is to remove heat away from the combustion chamber. Spark plugs act as a heat exchanger, pulling thermal energy away from the combustion chamber and transferring it to the engine’s cooling system.
General & Industrial Engines [links]
Here is an example of the Nippon Denso basic spark plug code. more
The “-U” indicates that the ground electrode has a U groove made into it to provide a better initial flame kernel. The letters “P” or “V” would indicate a platinum electrode. [links]
The number (82 in this case) indicates the heat range of the spark plug, the higher the number the hotter the heat range (opposite of NGK and ND spark plugs). Generally speaking, a colder heat range is used under high temperature conditions such as racing, while a hotter heat range is used under colder climate conditions. It is best to use the heat range specified by the manufacturer.
The number at the end indicates the recommended spark plug gap in tenths of a millimeter. An 8 should be gapped to .8 mm or .032″, 9 should be gapped to .9 mm or .035″, 10 should be gapped to 1.0 mm or .040″ and 11 should be gapped to 1.1 mm or .044″. If there is no number at the end of the spark plug code, it should be gapped to .7 mm or .028″ unless specified differently by the vehicle manufacturer.