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NGK Spark Plugs

NGK Iridium IX Spark Plugs

4.86 out of 5 stars 252 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 - 8 of 8

NGK Iridium IX Spark Plugs BR8EIX

NGK Iridium IX Spark Plugs BR8EIX

NGK Iridium IX Spark Plugs BR8EIX

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

Part Number: NGK-5044

5.0 out of 5 stars ( 2 )

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NGK Iridium IX Spark Plugs CR9EIX

NGK Iridium IX Spark Plugs CR9EIX

NGK Iridium IX Spark Plugs CR9EIX

Spark Plug, Iridium IX, Gasket Seat, 10mm Thread, .750 in. Reach, Resistor, Each

Part Number: NGK-3521

5.0 out of 5 stars ( 5 )

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NGK Iridium IX Spark Plugs DCPR7EIX SOLID

NGK Iridium IX Spark Plugs DCPR7EIX SOLID

NGK Iridium IX Spark Plugs DCPR7EIX SOLID

Spark Plug, NGK DCPR7EIX SOLID Iridium IX Series Spark Plug, 19mm Reach, 12mm Thread, Heat Range 7, Flat Seat, 5/8 Hex, .031 in. Gap, Each

Part Number: NGK-97637

5.0 out of 5 stars ( 2 )

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NGK Iridium IX Spark Plugs BR7EIX

NGK Iridium IX Spark Plugs BR7EIX

NGK Iridium IX Spark Plugs BR7EIX

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

Part Number: NGK-6664

Not Yet Reviewed

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NGK Iridium IX Spark Plugs BR9EIX

NGK Iridium IX Spark Plugs BR9EIX

NGK Iridium IX Spark Plugs BR9EIX

Spark Plug, IX Iridium, 14mm Thread, .750 in. Reach, 13/16 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-3981

5.0 out of 5 stars ( 1 )

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NGK Iridium IX Spark Plugs DCPR8EIX SOLID

NGK Iridium IX Spark Plugs DCPR8EIX SOLID

NGK Iridium IX Spark Plugs DCPR8EIX SOLID

Spark Plug, Iridium IX, Iridium, 12mm Thread, 0.750 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-97181

Not Yet Reviewed

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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 )

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NGK Iridium IX Spark Plugs BPR5EIX SOLID

NGK Iridium IX Spark Plugs BPR5EIX SOLID

NGK Iridium IX Spark Plugs BPR5EIX SOLID

Spark Plug, Iridium IX, Iridium, 14mm Thread, 0.927 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: NGK-95525

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