Heres the ultimate in spark plug technology and performance from the industry leader
The iridium electrode is a full 25 percent smaller than the platinum electrode and just 1/4 the size of a conventional nickel electrode
Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
New metal shell plating has enhanced anticorrosion qualities
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NGK Standard Plug Cross-Reference Number:  
BR8ES, BR8ES-11, BR8EV, BR8EVX
Specs for NGK Iridium IX Spark Plug - BR8EIX
Heat Range
8
Thread
14 mm
Type
Resistor
Units
Each
Weight
0.12 lbs