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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 15 Items.

Results 1 - 9 of 9

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 )

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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 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 )

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NGK Iridium IX Spark Plugs ZFR6AIX-11S

NGK Iridium IX Spark Plugs ZFR6AIX-11S

NGK Iridium IX Spark Plugs ZFR6AIX-11S

Spark Plug, IX Iridium, 14mm Thread, 0.750 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-97138

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 )

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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 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 )

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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

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