NGK Racing Spark Plugs

4.84 out of 5 stars 218 Customer Reviews

What's firing your engine? NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engi

What's firing your engine? NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engines. NGK racing plugs feature special electrode materials—precious metals like platinum, iridium, and ruthenium—for greater durability and low voltage requirements. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. And, the unique arrangement of insulator noses improves throttle response! Whether you're a weekend warrior or an expert racer, rocket your way to victory with racing spark plugs from NGK—the people who sp

Results 1 - 25 of 97

NGK Racing Spark Plugs R5671A-10

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-5820

4.94 out of 5 stars ( 18 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5671A-8

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-4554

4.88 out of 5 stars ( 41 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5671A-9

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-5238

4.81 out of 5 stars ( 27 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5671A-7

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-4091

4.74 out of 5 stars ( 38 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs for 2011 RX 65 MOTARD - R5671A-11

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-6596

5.0 out of 5 stars ( 8 )

Estimated Ship Date: May 12, 2025 if ordered today

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Estimated Ship Date: May 12, 2025 if ordered today

NGK Racing Spark Plugs R5672A-8

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-7173

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R6061-10

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each

Part Number: NGK-5962

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5673-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-3249

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5672A-9

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

Part Number: NGK-7405

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R7437-9

Spark Plug, Gasket Seat, 14mm, 1.040 in. Reach, R7437-9, Resistor, Projected Tip, Each

Part Number: NGK-4654

5.0 out of 5 stars ( 5 )

Estimated Ship Date: May 12, 2025 if ordered today

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Estimated Ship Date: May 12, 2025 if ordered today

NGK Racing Spark Plugs R5724-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-7317

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5673-7

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-2817

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5673-9

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-3442

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R7448A-9

Spark Plug, Racing, Tapered Seat, 14mm Thread, 25mm Reach, Heat Range 9, With Resistor, Each

Part Number: NGK-96969

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R6061-11

Spark Plug, Racing, 14mm Thread, .750 in. Reach, 13/16 Hex, Gasket Seat, Non-Resistor, Each

Part Number: NGK-2773

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R7448A-10

Spark Plug, Racing, Tapered Seat, 14mm Thread, 25mm Reach, Heat Range 10, With Resistor, Each

Part Number: NGK-95811

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5674-7

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-5034

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R7438-9

Spark Plug, Racing Plugs, Non Projected, 14mm Thread, 26.5mm Reach, 5/8 in. Hex, Gasket Seat, Each

Part Number: NGK-4656

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5674-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-5657

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R6725-115

Spark Plug, Racing, 14mm Thread, 0.846 in. Reach, Non-Projected Tip, 13/16 in. Hex, Gasket Seat, Resistor, Each

Part Number: NGK-4482

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5670-6

Spark Plug, Racing, Gasket Seat, 14mm Thread, .375 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-2746

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5674-6

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-4449

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5673-10

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-4050

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5670-7

Spark Plug, Racing, Gasket Seat, 14mm Thread, .375 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-2891

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

NGK Racing Spark Plugs R5724-10

Spark Plug, Racing, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-7993

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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