THE IRIDIUM IX SPARK PLUG The Iridium IX spark plug benefits from the use of the precious metal Iridium on its centre electrode. Iridium is harder than other precious metals used in spark plug manufacture, has an extremely high melting point …
Spark Plugs marked with an asterisk * have a pre-set gap larger then the original item. Please ensure that these are suitable for the intended application. MP 1 of 5 November 2020
NGK Stock # NGK Part # Competitor # NGK Stock # NGK Part # Competitor # NGK Stock # NGK Part # Accel 112 2912 BP8ES 113 1034 BP7ES 114 7333 BP6ES 115 7432 B6ES 116 7832 BP5ES 137 2298 R5670-5 138 5858 XR4 141 2611 B9ES 142 2411 B8ES 143 1111 B7ES 146 6410 B5ES 166 3212 B-6L 168 3112 B-4L 276 2771 UR5 378 2438 WR5
Used at the tip of the center electrode of the spark plug, Iridium is a denser metal alloy, 6x to that of platinum; this provides increased service life, improved ignitability and throttle response when compared to a factory nickel plug.
NGK Spark Plugs Cross Reference - Plug Specs
Locate your spark plug’s model number in the chart and find the corresponding NGK model. Tips for Accurate Cross-Referencing: Double-check the specifications: Ensure the NGK model matches in size, heat range, and electrode gap.
Harley Davidson Spark Plug Cross Reference - Biker Rated
Inspect your spark plug caps and replace if required. A regular spark plug uses a copper central electrode whereas an iridium spark plug uses, you guessed it, iridium. The metal in a spark plug has a single purpose: to channel the electrical energy through the spark plug.
Due to the recent shortage of NGK spark plugs, this document identifies spark plugs from other manufacturers to use as a replacement. Items may not be available in all locations.
NGK to NGK Iridium Cross Reference - ClubPlug.ca
NGK to NGK Iridium Cross Reference NOTE: Cross references are provided as a guide only. Due to differences in design and material, plugs produced by various manufacturers do not have exactly the same heat range.
Spark Plugs marked with an asterisk * have a pre-set gap larger then the original item. Please ensure that these are suitable for the intended application. MP 1 of 5 November 2020
Spark plug charts are sorted by thread size, thread reach, hex size. Hotter plugs are listed above the colder plugs. Plug images are located on the opposite page. Due to the extreme modifications in racing applications, these spark plugs are not warranted