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NGK Spark Plugs

NGK Iridium IX Spark Plugs

4.86 out of 5 stars 254 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 35 Items.

Results 1 - 24 of 24

NGK Iridium IX Spark Plugs LFR7AIX

NGK Iridium IX Spark Plugs LFR7AIX

NGK Iridium IX Spark Plugs LFR7AIX

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

Part Number: NGK-2309

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BPR6EIX

NGK Iridium IX Spark Plugs BPR6EIX

NGK Iridium IX Spark Plugs BPR6EIX

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

Part Number: NGK-6637

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BPR7EIX

NGK Iridium IX Spark Plugs BPR7EIX

NGK Iridium IX Spark Plugs BPR7EIX

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

Part Number: NGK-4055

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BR8EIX SOLID

NGK Iridium IX Spark Plugs BR8EIX SOLID

NGK Iridium IX Spark Plugs BR8EIX SOLID

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

Part Number: NGK-6747

Not Yet Reviewed

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NGK Iridium IX Spark Plugs DR8EIX

NGK Iridium IX Spark Plugs DR8EIX

NGK Iridium IX Spark Plugs DR8EIX

Spark Plug, Iridium IX, Gasket Seat, 12mm Thread, .750 in. Reach, Resistor, Each

Part Number: NGK-6681

Not Yet Reviewed

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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

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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 BPR8EIX

NGK Iridium IX Spark Plugs BPR8EIX

NGK Iridium IX Spark Plugs BPR8EIX

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

Part Number: NGK-6684

Not Yet Reviewed

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NGK Iridium IX Spark Plugs CR10EIX

NGK Iridium IX Spark Plugs CR10EIX

NGK Iridium IX Spark Plugs CR10EIX

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

Part Number: NGK-6482

Not Yet Reviewed

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NGK Iridium IX Spark Plugs DPR8EIX-9

NGK Iridium IX Spark Plugs DPR8EIX-9

NGK Iridium IX Spark Plugs DPR8EIX-9

Spark Plug, Iridium IX, Gasket Seat, 12mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs CR8EIX

NGK Iridium IX Spark Plugs CR8EIX

NGK Iridium IX Spark Plugs CR8EIX

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

Part Number: NGK-4218

Not Yet Reviewed

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NGK Iridium IX Spark Plugs BR9ECMIX

NGK Iridium IX Spark Plugs BR9ECMIX

NGK Iridium IX Spark Plugs BR9ECMIX

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

Part Number: NGK-2707

Not Yet Reviewed

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NGK Iridium IX Spark Plugs BR10EIX

NGK Iridium IX Spark Plugs BR10EIX

NGK Iridium IX Spark Plugs BR10EIX

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

Part Number: NGK-6801

Not Yet Reviewed

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NGK Iridium IX Spark Plugs CR7HIX

NGK Iridium IX Spark Plugs CR7HIX

NGK Iridium IX Spark Plugs CR7HIX

Spark Plug, IX Iridium, 10mm Thread, .500 in. Reach, 5/8 in. Hex, Resistor, Each

Part Number: NGK-7544

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BR7HIX

NGK Iridium IX Spark Plugs BR7HIX

NGK Iridium IX Spark Plugs BR7HIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .500 in. Reach, Resistor, Each

Part Number: NGK-7067

Not Yet Reviewed

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NGK Iridium IX Spark Plugs CR7EIX

NGK Iridium IX Spark Plugs CR7EIX

NGK Iridium IX Spark Plugs CR7EIX

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

Part Number: NGK-7385

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BPR9EIX

NGK Iridium IX Spark Plugs BPR9EIX

NGK Iridium IX Spark Plugs BPR9EIX

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

Part Number: NGK-6853

Not Yet Reviewed

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NGK Iridium IX Spark Plugs DPR9EIX-9

NGK Iridium IX Spark Plugs DPR9EIX-9

NGK Iridium IX Spark Plugs DPR9EIX-9

Spark Plug, IX Iridium, 12mm Thread, .750 in. Reach, 18mm Hex, Gasket Seat, Resistor, Each

Part Number: NGK-5545

Not Yet Reviewed

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NGK Iridium IX Spark Plugs CPR7EAIX-9

NGK Iridium IX Spark Plugs CPR7EAIX-9

NGK Iridium IX Spark Plugs CPR7EAIX-9

Spark Plug, Iridium IX, Gasket Seat, 10mm, 0.750 in. Reach, CPR7EAIX-9, Resistor, Projected Tip, Each

Part Number: NGK-9198

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BPR6HIX

NGK Iridium IX Spark Plugs BPR6HIX

NGK Iridium IX Spark Plugs BPR6HIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .500 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-4085

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BR9HIX

NGK Iridium IX Spark Plugs BR9HIX

NGK Iridium IX Spark Plugs BR9HIX

Spark Plug, Iridium IX, BR9HIX, Gasket Seat, Kart Comer 80, 14mm Thread, .500 in. Reach, Resistor, Each

Part Number: NGK-5687

Not Yet Reviewed

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