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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 18 Items.

Results 1 - 14 of 14

NGK Iridium IX Spark Plugs LTR5IX-11

NGK Iridium IX Spark Plugs LTR5IX-11

NGK Iridium IX Spark Plugs LTR5IX-11

Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .984 in. Reach, Resistor, Each

Part Number: NGK-4344

5.0 out of 5 stars ( 6 )

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NGK Iridium IX Spark Plugs BKR7EIX

NGK Iridium IX Spark Plugs BKR7EIX

NGK Iridium IX Spark Plugs BKR7EIX

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

Part Number: NGK-2667

5.0 out of 5 stars ( 6 )

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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 )

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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 BKR5EIX

NGK Iridium IX Spark Plugs BKR5EIX

NGK Iridium IX Spark Plugs BKR5EIX

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

Part Number: NGK-6341

5.0 out of 5 stars ( 5 )

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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: Today

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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 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 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 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 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 LKAR6AIX-11

NGK Iridium IX Spark Plugs LKAR6AIX-11

NGK Iridium IX Spark Plugs LKAR6AIX-11

Spark Plug, IX Iridium, 12mm Thread, 1.040 in. Reach, 9/16 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-91187

Not Yet Reviewed

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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 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 )

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