NGK Racing Spark Plugs

4.85 out of 5 stars 221 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 - 19 of 19

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: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

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 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R2556G-9

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

Part Number: NGK-93253

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R7420-10

Spark Plug, Racing, Gasket Seat, 14mm Thread, 0.827 in. Reach, Resistor, Each

Part Number: NGK-5501

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R7282-10

Spark Plug, Racing, Copper Core, Iridium Tip, 14mm Thread Size, 0.750 in. Reach, Each

Part Number: NGK-2000

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R7437-8

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

Part Number: NGK-4901

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R2556G-8

Spark Plug, Racing, Copper, 12mm Thread, 1.043 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-91975

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R7420-105

Spark Plug, Racing, Copper, 14mm Thread, 0.846 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: NGK-4857

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

NGK Racing Spark Plugs R0373A-11

Spark Plug, Racing, Iridium, Copper, 10mm, Flat, Universal, Each

Part Number: NGK-5566

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

NGK Racing Spark Plugs R2558E-10

Spark Plug, Racing, Flat Seat, 12mm Thread, 1.043 in. Reach, Resistor, Each

Part Number: NGK-97278

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

...Loading

Estimated Ship Date: Monday 8/4/2025

Spark Plug, Racing, Copper, 12mm Thread, 1.043 in. Reach, Flat Seat, 5/8 in. Wrench Size, Each

Part Number: NGK-91185

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

NGK Racing Spark Plugs R7420-11

Spark Plug, Iridium, Gasket Seat, 14mm Thread, 21.5mm Reach, Each

Part Number: NGK-7756

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 6, 2025 if ordered today

Page 1 of 1