GMC Spark Plugs & Glow Plugs

Spark Plug, Iridium XP, Iridium, 14mm Thread, 0.982 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-XP6043

Not Yet Reviewed

• Special Order

Spark Plug, Iridium Power, ITV20, 14mm Thread, 25.00mm Reach, Tapered Seat, Buick, Cadillac, Chevy, Ford, GMC, Lincoln, Mazda, Mercury, Saturn, Each

Part Number: DNP-5339

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Special Order

Spark Plug, Iridium Tip, Copper Core, Tapered Seat, 16mm Wrench Diameter, One Ground Strap, 0.984 in. Reach, Each

Part Number: ADO-41-107

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Estimated Ship Date: Tomorrow

• $20 Summit Bucks

Spark Plug, OE Platinum, Resistor, 14mm Thread, 11.2mm Reach, Tapered Seat, Each

Part Number: BCH-6722

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Estimated Ship Date: Tomorrow

Glow Plug Controller, Duramax Diesel V8, 6.6L/403, Each

Part Number: SMP-RY-1731

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Estimated Ship Date: Tomorrow

• Free Shipping

Spark Plug, Double Platinum, 14mm Thread, 0.750 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: ATL-APP64

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Estimated Ship Date: Tomorrow

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

Part Number: DNP-4502

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Spark Plug, Laser Iridium, 12mm Thread, 25mm. Reach, Resistor, Tapered Seat, Each

Part Number: NGK-91970

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

• Special Order

Spark Plug, Platinum TT, PTF16TT, 14mm Thread, 11.60mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-4509

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Spark Plug, Professional, Platinum Tip, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-41-814

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Estimated Ship Date: Tomorrow

• $20 Summit Bucks

OE Iridium, 14mm thread, 25mm reach, 5/8" hex, tapered, solid

Part Number: NGK-94489

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Special Order

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: Tomorrow

Spark Plug, RAPIDFIRE Performance Platinum, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-8

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

• $20 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 Plug, Copper Core, Tapered Seat, 14mm Thread, 0.460 in. Reach, Resistor, Each

Part Number: ATL-147

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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: Jan 12, 2026 if ordered today

• Special Order

Spark Plug, OE Platinum, Gasket Seat, 14mm Thread, 11.2mm Reach, Resistor, Each

Part Number: BCH-6708

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: DNP-3031

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

• Special Order

Glow Plug, Gold, Cadillac, Chevrolet, GMC, Diesel, Each

Part Number: ADO-72G

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• $20 Summit Bucks
• Special Order

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

Part Number: DNP-4501

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Special Order

Spark Plug, OE Iridium, Non-Projected, 8 Heat Range, 25mm Reach, Tapered Seat, Buick, Chevy, Fisker, GMC Pontiac, Saab, Saturn, Each

Part Number: BCH-9723

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Estimated Ship Date: Tomorrow

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.982 in. Reach, Tapered Seat, 16mm Wrench Size, Each

Part Number: ATL-AP5364

Not Yet Reviewed

• Special Order

Spark Plug, XP Xtreme Performance, Iridium, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-XP5364

Not Yet Reviewed

• Special Order

Glow Plug Controller, AM General, Chevy, GMC, 6.2L Diesel, Each

Part Number: DRX-DRX01005

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Glow Plug Controller, AM General, Chevy, GMC, 6.5L Diesel, Each

Part Number: DRX-DRX01006

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow if ordered today

• Special Order