1966 Spark Plugs & Glow Plugs

Spark Plug, Standard Series, Gasket Seat, 14mm Thread, .500 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6422

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, Standard Series, Gasket Seat, 14mm Thread Size, 12.7mm Reach, Resistor, Each

Part Number: NGK-6222

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Estimated Ship Date: Today

Spark Plug, RN4C, Copper Plus, 14mm Thread, .750 in. Reach, Resistor, Each

Part Number: CPN-104

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

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

Part Number: NGK-5944

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 20, 2026 if ordered today

• Special Order

Spark Plugs, Iridium Power, Gasket Seat, 14mm Thread, 19mm Reach, Resistor, Each

Part Number: DNP-5305

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Estimated Ship Date: Today

Spark Plug, U-Groove, MA16PR-U, 18mm Thread, 11.60mm Reach, Tapered Seat, Ford, Lincoln, Mercury, Each

Part Number: DNP-5008

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Estimated Ship Date: Today

Spark Plugs, U-Groove, Gasket Seat, 14mm Thread, 9.5mm Reach, Resistor, Each

Part Number: DNP-6021

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Estimated Ship Date: Today

Spark Plugs, Iridium Power, Gasket Seat, 14mm Thread, 12.7mm Reach, Resistor, Each

Part Number: DNP-5378

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Special Order

Spark Plug, G-Power Platinum, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3351

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 2, 2026 if ordered today

• Special Order

Spark Plug, Copper, 14mm Thread, 0.500 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-425

Not Yet Reviewed

• Special Order

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

Part Number: NGK-6410

Not Yet Reviewed

• Special Order

Spark Plug, Platinum TT, PW20TT, 14mm Thread, 19.00mm Reach, Gasket Seat, Universal, Each

Part Number: DNP-4502

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Special Order

Spark Plug, U-Groove, W16PR-U, 14mm Thread, 9.50mm Reach, Gasket Seat, Buick, Chevy, Chrysler, Dodge, GMC, Jeep, Olds, Plymouth, Pontiac, Each

Part Number: DNP-3037

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Special Order

Spark Plug, U-Groove, W20EX-U, 14mm Thread, 19.00mm Reach, Gasket Seat, MG, for Nissan, Subaru, Each

Part Number: DNP-3062

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Estimated Ship Date: Today

Spark Plug, Traditional, Copper, Projected Tip, 14mm Thread, 0.437 in. Reach, Gasket Seat, Each

Part Number: CPN-857

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Estimated Ship Date: Dec 1, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Spark Plug, Copper, 14mm Thread, 0.375 in. Reach, Flat Seat, 19mm Wrench Size, Each

Part Number: ATL-265

Not Yet Reviewed

• Special Order

Spark Plugs, U-Grove, Resistor, Copper, 14mm Thread Size, 19mm Reach, Gasket Seat, Each

Part Number: DNP-3031

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Special Order

Spark Plug, Copper Plus, 14mm Thread, Copper Tip, Universal, Each

Part Number: CPN-854

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Spark Plug, Copper Plus, Gasket Seat, 14mm Thread, .500 in. Reach, Each

Part Number: CPN-306

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Estimated Ship Date: Today

• $20.00 Summit Bucks

Spark Plug, J6C, Copper Core, 14mm Thread, .375in. Reach, Set

Part Number: CPN-823-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Spark Plug, Standard Series, Copper Core, Gasket Seat, 14mm Thread Size, 19mm Reach, Resistor, Each

Part Number: NGK-5866

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

USE AUP 306

Part Number: CPN-511

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Spark Plug, RL87YC, Copper Plus, Resistor, Projected Tip, Each

Part Number: CPN-327

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Estimated Ship Date: Today

• $20.00 Summit Bucks

Spark Plugs, Platinum TT, Gasket Seat, 14mm Thread, 19mm Reach, Resistor, Each

Part Number: DNP-4501

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug, N2C, Copper Core, 14mm Thread, .750in. Reach, Set

Part Number: CPN-805C

Not Yet Reviewed

Estimated Ship Date: Today

• $20.00 Summit Bucks