2003 CHEVROLET SILVERADO 2500 HD Ignitions & Electrical - In Stock Filter Options - Vendor In Stock Filter Options

Beck/Arnley Engine Coolant Temperature Sensors 158-0536

Coolant Temperature Sensor, Each

Part Number: BCK-158-0536

Not Yet Reviewed

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Clayton Machine Ignition Coil Covers LSC-01-M

Clayton Machine Ignition Coil Covers LSC-01-M

Ignition Coil Cover, Aluminum, Machined, Milled Finish, Natural, Chevrolet, Pair

Part Number: CYM-LSC-01-M

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 84644

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Blue, Cadillac, Chevy, Pontiac, LS1/LS6, Set

Part Number: TAY-84644

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 86246

Wire, ThunderVolt, Spiral Core, 8.2mm, Red, Coil Pack, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab

Part Number: TAY-86246

4.67 out of 5 stars ( 3 )

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ACDelco ABS Wheel Speed Sensors 19300584

Sensor, ABS Speed Sensor, Stock Replacement, Front, Chevrolet, GMC, Truck, Each

Part Number: ADO-19300584

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Taylor Spiro-Pro Spark Plug Wire Sets 72205

Spark Plug Wires, Spiro-Pro, 8mm, Red, Straight Boots, GM, 4.8/5.3/6.0L, V8, Set

Part Number: TAY-72205

4.94 out of 5 stars ( 16 )

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MechMan Elite Series Cast Alternators 8206320

Alternators and Generators, Elite Series Cast Alternators, 12 V, 320 amps, Serpentine, 4-pin Oval Plug, Buick, Chevy, GMC, Hummer, Olds, Pontiac, Each

Part Number: MEH-8206320

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Granatelli Motor Sports Spark Plug Wires 28-1629HTBB

Spark Plug Wire Sets, Assembled, Solid Core, Black, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTBB

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

Taylor Spiro-Pro Spark Plug Wire Sets 74244

Spark Plug Wires, Spiro-Pro, 8mm, Red, Straight Boots, Chevy, Pontiac, LS1/LS6, Set

Part Number: TAY-74244

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Taylor Spiro-Pro Spark Plug Wire Sets 72605

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

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Bosch OE Platinum Spark Plugs 6704

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

Part Number: BCH-6704

Not Yet Reviewed

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ACDelco Wiring Connectors 12102621

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

Part Number: ADO-PT308

Not Yet Reviewed

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Powermaster High-Amp Alternators 28237

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

Part Number: PWM-28237

Not Yet Reviewed

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40 amps ACDelco Replacement Relay 19106615

Relay, Replacement, 12 V, 30 amps, 4 Male Terminals, Buick, Cadillac, Chevy, Daewoo, Dodge, Pontiac, Saturn

Part Number: ADO-D1741C

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Dorman Accelerator Pedal Position Sensors 699-102

Accelerator Pedal Position Sensor, Replacement, GM/Hummer, Pickup/SUV, Each

Part Number: RNB-699-102

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Fleece Performance Wiring Pigtails FPE-HAR-MU-PT-5

Wiring Pigtail, Transmission Speed, Coolant Temp, Brake Fluid Level, Washer Fluid Level, Chevy, GMC, Dodge, Ram, Each

Part Number: FLE-S0429

Not Yet Reviewed

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FAST MAP Sensor Adapter Harnesses 308029

ADAMPER EARLYGYM

Part Number: FST-308029

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holstein Parts MAP Sensors 2MAP0001

Sensor, Manifold Pressure Sensor, MAP, Replacement, Each

Part Number: HLN-2MAP0001

Not Yet Reviewed

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Dorman Throttle Body Modules 599-959

THROTTLE CTRL MODULE

Part Number: RNB-599-959

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

ACDelco GM Genuine Parts Oxygen Sensors 19209812

Oxygen Sensor, 4-wire, Chevy, GMC, Each

Part Number: ADO-213-1149

Not Yet Reviewed

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Dorman ABS Speed Sensors 970-011

ABS Speed Sensor, GM, Each

Part Number: RNB-970-011

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 86646

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: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Professional Products LSX High Performance Coil Packs 30603

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

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Davis Unified Ignition SOS Ignition Coil Packs 65350-1

Ignition Coil Pack, SOS, Triangular, Epoxy Filled, Black, 40,000 V, Each

Part Number: DUI-65350-1

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

Standard Motor Relays RY-1567

Relay, Stock, 12 V, Each

Part Number: SMP-RY-1567

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today