NGK Laser Iridium Spark Plugs

4.92 out of 5 stars 75 Customer Reviews

NGK Laser Iridium spark plugs feature laser-welded technology. Lasers are used to pinpoint precision welds, reducing excess debris; this decreases the required voltage to bridge the spark gap. An iridium disc is welded on the center electrode and a platinum disc is welded on the ground electrode, reducing the wear rate of both surfaces and ensuring great durability and long life. These spark plugs are available for use with a variety of engine types.

Results 1 - 12 of 12

NGK Laser Iridium Spark Plugs IZTR5B11

Spark Plug, IZTR5B11, Laser Iridium, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Hex, Each

Part Number: NGK-1465

4.84 out of 5 stars ( 25 )

Estimated Ship Date: Today

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NGK Laser Iridium Spark Plugs ITR4A15

Spark Plug, Laser Iridium, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-5599

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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NGK Laser Iridium Spark Plugs IFR6T11

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

Part Number: NGK-4589

Not Yet Reviewed

Estimated Ship Date: Today

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NGK Laser Iridium Spark Plugs KR8AI

Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread Size, 0.750in. Reach, Resistor, Each

Part Number: NGK-5477

Not Yet Reviewed

Estimated Ship Date: Today

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NGK Laser Iridium Spark Plugs ITR5H13

USE NIP 4713

Part Number: NGK-97287

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

NGK Laser Iridium Spark Plugs ITR6F13

Spark Plug, Laser Iridium, Tapered Seat, 14mm Thread, .708 in. Reach, Resistor, Each

Part Number: NGK-4477

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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NGK Standard Series Spark Plugs for 1991-1992 XJS - BR7EF

4.75 out of 5 stars ( 28 )

Estimated Ship Date: Today

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NGK Laser Iridium Spark Plugs CR9EHI-9

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

Part Number: NGK-6419

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

NGK Laser Iridium Spark Plugs IFR5N10

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

Part Number: NGK-7866

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

NGK Laser Iridium Spark Plugs IFR5T11

Spark Plug, Iridium, 14mm Thread, .750 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-4996

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

NGK Laser Iridium Spark Plugs IFR6B

Spark Plug, Laser Iridium, Gasket Seat, 14mm Thread Size, 19mm Reach, Resistor, Each

Part Number: NGK-6507

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

NGK Laser Iridium Spark Plugs IFR6E11

Spark Plug, Iridium, 14mm Thread, .750 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-6741

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

NGK Laser Iridium Spark Plugs IFR6Q-G

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

Part Number: NGK-5648

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

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