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NGK Laser Iridium Spark Plugs

4.92 out of 5 stars 74 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 - 25 of 73

Spark Plug, Laser Iridium, Tapered Seat, 14mm Thread Size, 25mm Reach, Resistor, Each

Part Number: NGK-91418

5.0 out of 5 stars ( 3 )

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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 )

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Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread Size, 26.5mm Reach, Resistor, Each

Part Number: NGK-7751

5.0 out of 5 stars ( 3 )

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Spark Plug, Laser Iridium, Gasket Seat, 14mm Thread Size, 26.5mm Reach, Resistor, Each

Part Number: NGK-96779

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

Part Number: NGK-4589

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Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread, 26.5mm Reach, Resistor, Each

Part Number: NGK-1422

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Spark Plug, Iridium, 10mm Thread, .750 in. Reach, 5/8 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-6289

5.0 out of 5 stars ( 1 )

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Spark Plug, Laser Iridium, Resistor, Copper Electrode Core, 12mm Thread, for use on Acura®, Honda®, Each

Part Number: NGK-5787

5.0 out of 5 stars ( 3 )

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

Part Number: NGK-6994

5.0 out of 5 stars ( 6 )

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Spark Plug, Laser Iridium, Gasket Seat, 14mm Thread, 1.043 in. Reach, Resistor, Each

Part Number: NGK-4904

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

Part Number: NGK-91039

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

Part Number: NGK-3657

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Spark Plug, Laser Iridium, Gasket Seat, 10mm Thread, 1.040 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-90526

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Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread, 26.5mm Reach, Resistor, Each

Part Number: NGK-4912

5.0 out of 5 stars ( 1 )

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

Part Number: NGK-5477

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Spark Plug, Laser Iridium, Gasket Seat, 14mm Thread, 26.5mm Reach, Resistor, Projected Tip, Each

Part Number: NGK-5245

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Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread, 26.5mm Reach, Projected Tip, Resistor, Each

Part Number: NGK-1961

5.0 out of 5 stars ( 1 )

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Spark Plug, ILZKAR7A10, Laser Iridium, 12mm Thread, 26.5mm Reach, Gasket Seat, 14mm Hex, Each

Part Number: NGK-6043

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Spark Plug, IMR9C-0H, Laser Iridium, Gasket Seat, 10mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6777

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Estimated Ship Date: Oct 6, 2025 if ordered today

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

Part Number: NGK-6774

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Spark Plug, Laser Iridium, Gasket Seat, 14mm, 0.750 in. Reach, IFR6B-K, Resistor, Projected Tip, Each

Part Number: NGK-4867

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Spark Plug, Laser Iridum, Projected, 12mm Thread, 0.750 in. Reach, 11/16 in. Hex, BMW, Each

Part Number: NGK-1208

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Spark Plug, Laser Iridium, Iridium, 10mm Thread, 1.040 in. Reach, Gasket Seat, 9/16 in. Wrench Size, Each

Part Number: NGK-6213

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

Part Number: NGK-7994

4.0 out of 5 stars ( 1 )

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Spark Plug, Iridium, 14mm Thread, 1.043 in. Reach, 5/8 in. Hex, Gasket seat, Resistor, Each

Part Number: NGK-6481

4.0 out of 5 stars ( 1 )

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