Filters

  • In Stock
  • Universal
  • Make/Model
  • Make/Engine
  • Spark Plug Thread Size
  • Spark Plug Reach (in.)
  • Spark Plug Reach (mm)
  • Manufacturer Heat Range
  • Center Electrode Type
  • Wrench Diameter
  • Price Range
  • Filter Options

Selected Filters

Filter Results by Vehicle

Loading...

Availability

  • Filters

  • Universal
  • Make/Model
  • Make/Engine
  • Spark Plug Thread Size
  • Spark Plug Reach (in.)
  • Spark Plug Reach (mm)
  • Manufacturer Heat Range
  • Center Electrode Type
  • Wrench Diameter
  • Price Range
  • Filter Options
NGK Spark Plugs

NGK Iridium IX Spark Plugs

4.86 out of 5 stars 253 Customer Reviews

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 the hardest metal used in spark plugs today—six times harder than platinum. This allowed NGK engineers to reduce the voltage requirement for a spark. Iridium IX plugs are available in more than a hundred configurations for universal and vehicle-specific applications.

Showing In Stock Items. Show All 11 Items.

Results 1 - 9 of 9

NGK Iridium IX Spark Plugs LFR5AIX-11

NGK Iridium IX Spark Plugs LFR5AIX-11

NGK Iridium IX Spark Plugs LFR5AIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, 1.043 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-4469

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs LKR7DIX-11S

NGK Iridium IX Spark Plugs LKR7DIX-11S

NGK Iridium IX Spark Plugs LKR7DIX-11S

Spark Plug, IX Iridium, 12mm Thread, 1.040 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-93175

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs BKR6EIX

NGK Iridium IX Spark Plugs BKR6EIX

NGK Iridium IX Spark Plugs BKR6EIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6418

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs BKR5EIX-11

NGK Iridium IX Spark Plugs BKR5EIX-11

NGK Iridium IX Spark Plugs BKR5EIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-5464

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs LFR6AIX

NGK Iridium IX Spark Plugs LFR6AIX

NGK Iridium IX Spark Plugs LFR6AIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, 1.040 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-93893

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs ZFR5FIX-11

NGK Iridium IX Spark Plugs ZFR5FIX-11

NGK Iridium IX Spark Plugs ZFR5FIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Iridium, Each

Part Number: NGK-2477

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs BPR5EIX-11

NGK Iridium IX Spark Plugs BPR5EIX-11

NGK Iridium IX Spark Plugs BPR5EIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2115

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs LZKR6AIX

NGK Iridium IX Spark Plugs LZKR6AIX

NGK Iridium IX Spark Plugs LZKR6AIX

Spark Plug, Iridium IX, Gasket Seat, 12mm Thread, 1.040 in. Reach, Extended Projected Tip, Resistor, Each

Part Number: NGK-92873

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

NGK Iridium IX Spark Plugs BPR6EIX-11

NGK Iridium IX Spark Plugs BPR6EIX-11

NGK Iridium IX Spark Plugs BPR6EIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3903

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

  • 1
  • Page 1 of 1