2003 CHEVROLET SILVERADO-2500-HD Ignitions & Electrical

Spark Plug Wires, ThunderVolt, Assembled, 8.2mm, Spiral Core, Blue, Chevy, GMC, Small Block, Set

Part Number: TAY-86646

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Nov 24, 2025 if ordered today

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Ignition Coils, Flame-Thrower, Coil Pack Style, Epoxy, Female/Socket, Square, Black, 35,000 V, Buick, Cadillac, Chevy, GMC, Hummer, LS, Each

Part Number: PNX-30841

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Estimated Ship Date: Today

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Blue, Stock Boots, Chevy, GMC, 8.1L, Set

Part Number: TAY-82625

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Alternator, 180 Amp, Internal Regulator, 4-Pin, Polished, GM, Each

Part Number: PWM-28237

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Estimated Ship Date: Today

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Vehicle Speed Sensor, Buick, Cadillac, Chevy, GMC, Oldsmobile, Each

Part Number: RNB-917-618

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Spark Plug Wires, Spiro-Pro, 8mm, Blue, Straight Boots, Cadillac, Chevy, GMC, 4.8/5.3/6.0L, V8, Set

Part Number: TAY-72605

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

Wiring Pigtails, Replacement, Female Wire Connector Type, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: ADO-PT308

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Estimated Ship Date: Today

• $20.00 Summit Bucks

Spark Plug Wire Set, High Performance, 10mm Diameter, Coil Pack, Silicone Boot, Black, Spiral Core, 30 ohms/ft., Blue Wire, Chevy, Small Block, Set

Part Number: SCW-CH-LS-T-4

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Wiring Pigtails, 2-pin, Male, Black, for use on Acura®, Buick, Cadillac, Chevy, Chrysler, Ford, GMC, Lincoln, Mercury, Mitsubishi, Olds, Pontiac, Each

Part Number: SMP-HP3840

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Ignition Coils, Coil Pack, D585 Style, Epoxy, Round, Red, LS, V8, Chevy, Cadillac, GMC, Buick, Hummer, Isuzu, Each

Part Number: SUM-850501-1R

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Sensor, Coolant Temperature, Brass, Natural, Chevrolet, Pontiac. Buick, Saturn, Each

Part Number: SMP-TX89T

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug Wires, Spiro-Pro, 8mm, Black, Straight Boots, Cadillac, Chevy, GMC, 4.8/5.3/6.0L, V8, Set

Part Number: TAY-72005

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Estimated Ship Date: Today

Crankshaft Position Sensors, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: BCK-180-0563

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Air Flow Sensor

Part Number: HTA-MAF0081

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: ADO-41-805

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• $20.00 Summit Bucks

Spark Plug Wires, Powercables, Assembled, 8mm, Spiral Core, Red, Chevy, GMC, 8.1L, Set

Part Number: JBA-W0861

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Ignition Coil, LSX High Performance Coil Pack, Buick, Cadillac, Chevy, GMC, Hummer, 4.8, 5.3, 6.0, 8.1L, Each

Part Number: PFS-30603

Not Yet Reviewed

Estimated Ship Date: Today

Rail Pressure Sensor Pigtail

Part Number: FLE-FPE-HAR-RPPT

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Estimated Ship Date: Today

Oxygen Sensor, Universal Replacement, OE SmartLink™, Each

Part Number: BCH-15730

2.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

Power Window Switch, OEM, Stock Activation, Plastic, Chevy, GMC, Each

Part Number: SMP-DWS-226

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Switch Panel, Right Storage Compartment Mount, Aluminum, Black, 4 Switches, Chevy, Each

Part Number: NXO-00-11010

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

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Switch - Misc.

Part Number: SMP-FLS14

Not Yet Reviewed

Estimated Ship Date: Today

Wiring Connectors, Mass Air Flow Sensor Connector, Male, 10 in. Length, For Use on Acura®, Avanti, Buick,Chevy, Each

Part Number: SMP-HP4240

Not Yet Reviewed

Estimated Ship Date: Today

Wiring Pigtails, 1-pin, Female, Gray, for use on Acura®, for use on Honda®, AM General, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Each

Part Number: SMP-S550

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Spark Plug Wires, Powercables, Assembled, 8mm, Spiral Core, Red, Chevy, 12 in. Long, GMC, 4.8/5.3/6.0L, Set

Part Number: JBA-W0855

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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