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NGK Surface Gap Spark Plugs

4.6 out of 5 stars 10 Customer Reviews

NGK Surface Gap spark plugs are specialty plugs that are nearly immune to pre-ignition, and usually require special high-energy ignition systems. They feature trivalent metal plating, corrugated ribs, pure alumina silicate ceramic insulators, copper cores, and triple seals. These plug characteristics provide superior anti-corrosion and anti-seizing properties, superior strength, and better heat transfer—as well as preventing flashover and leakage. Order the universal-fit or vehicle-specific plugs for your application.

Results 1 - 10 of 10

Spark Plug, Surface Gap, Gasket Seat, 14mm Thread, 0.846 in. Reach, Resistor, Each

Part Number: NGK-5777

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Spark Plug, Surface Gap, BUR7EQ, Gasket Seat, 14mm, 21.5mm Reach, Resistor, Each

Part Number: NGK-6917

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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

Part Number: NGK-2322

Not Yet Reviewed

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

Spark Plug, Surface Gap, 14mm Thread, .500 in. Reach, 13/16 in. Hex, Gasket Seat, Each

Part Number: NGK-5626

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

Spark Plug, Surface Gap, Gasket Seat, 14mm Thread, .50 in. Reach, Outboard marine, Each

Part Number: NGK-2173

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Oct 1, 2025 if ordered today

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Estimated Ship Date: Oct 1, 2025 if ordered today

Spark Plug, Standard, 14mm Thread, .500 in. Reach, 13/16 in. Hex, Gasket Seat, Inductive Resistor, Each

Part Number: NGK-7447

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, Surface Gap, Gasket Seat, 14mm Thread, .500 in. Reach, Resistor, Each

Part Number: NGK-2147

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Spark Plug, Surface Gap, Gasket Seat, 14mm Thread, .500 in. Reach, Each

Part Number: NGK-2622

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, Surface Gap, Gasket Seat, 14mm Thread, 0.500 in. Reach, Each

Part Number: NGK-5526

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, Surface Gap, Gasket Seat, 14mm Thread, 12.7mm Reach, Each

Part Number: NGK-702

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

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