2004 GMC SIERRA 2500 HD Spark Plugs & Glow Plugs

Spark Plugs, Platinum TT, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-4511

Not Yet Reviewed

Estimated Ship Date: Monday 2/9/2026

Spark Plug, E3, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-44

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/9/2026

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.679 in, Reach, Each

Part Number: ATL-5245

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Estimated Ship Date: Monday 2/9/2026

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

Part Number: SMP-RY-1731

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Estimated Ship Date: Feb 25, 2026 if ordered today

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• Free Shipping
• Special Order

Spark Plug, OE Platinum, Gasket Seat, 14mm Thread, 17.5mm Reach, Resistor, Each

Part Number: BCH-6704

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Estimated Ship Date: Monday 2/9/2026

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

Part Number: ADO-41-805

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Estimated Ship Date: Monday 2/9/2026

Spark Plug, Iridium Power, IT16, 14mm Thread, 18.00mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-5325

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Estimated Ship Date: Monday 2/9/2026

Spark Plug, Single Platinum, Platinum, 14mm Thread, 0.679 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-AP5245

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Estimated Ship Date: Monday 2/9/2026

Spark Plug, Iridium, Tapered Seat, 14mm Thread, .708 in. Reach, Resistor, Each

Part Number: CPN-9402

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Estimated Ship Date: Monday 2/9/2026

Glow Plug Straps, GM, Pickup, Duramax Diesel, Pair

Part Number: RNB-904-109

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Estimated Ship Date: Feb 26, 2026 if ordered today

• Drop Ship
• Special Order

Spark Plug, Double Platinum, Tapered, 14mm Thread, .708 in. Reach, Resistor, Each

Part Number: CPN-7015

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Estimated Ship Date: Monday 2/9/2026