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NGK Spark Plugs 3521 - NGK Iridium IX Spark Plugs

  • Spark Plug, Iridium IX, Gasket Seat, 10mm Thread, .750 in. Reach, Resistor, Each
  • Application Specific
  • Estimated Ship Date: 5/29/2012
 
BrandNGK Spark Plugs
Manufacturer's Part Number3521
Part TypeSpark Plugs
Product LineNGK Iridium IX Spark Plugs
Summit Racing Part NumberNGK-3521
UPC087295135211
 
Shorty Spark PlugNo
ResistorYes
Manufacturer Heat Range9
Electrode Core MaterialCopper
Electrode Tip MaterialIridium
Insulator TypeNon-projected
Spark Plug Thread Size10mm
Spark Plug Reach0.750 in.
Spark Plug Seat StyleGasket
Wrench Diameter5/8 in.
Ground Strap QuantityOne
NGK Part NumberCR9EIX
QuantitySold individually.
NotesDoes not include terminal nut.
 

These NGK Iridium IX spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs, and just thin enough to create an accurate and consistent spark. They represent the ultimate evolution of spark plug technology and performance. Iridium is significantly stronger than any metal used in spark plugs today. It's the hardest metal used (in fact, iridium is 6 times harder than platinum), which has allowed NGK engineers to reduce the voltage requirement for a spark.

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