2003 CHEVROLET SILVERADO 1500 HD Ignitions & Electrical

ACDelco Gold Headlight Switches 19381535

Electrical Switches, Gold Headlight Switches, Rotary, Plastic, Black, Lights Logo, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-19381535

5.0 out of 5 stars ( 2 )

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ACDelco GM Genuine Parts Ground Straps and Cables 15179982

Ground Strap, Body Electrical, 17.490 in. Length, Cadillac, Chevrolet, GMC, Truck, Each

Part Number: ADO-15179982

5.0 out of 5 stars ( 2 )

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Standard Motor Camshaft Position Sensors PC273K

Camshaft Position Sensor, Replacement, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Each

Part Number: SMP-PC273K

1.0 out of 5 stars ( 1 )

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Holstein Parts Camshaft Sensors 2CAM0181

Sensor, Camshaft Position Sensor, Replacement, Each

Part Number: HLN-2CAM0181

1.0 out of 5 stars ( 1 )

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ACDelco Replacement Relays 13500114

Relay, Multi Purpose, High Power, General, 8386, Each

Part Number: ADO-13500114

5.0 out of 5 stars ( 1 )

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Granatelli Motor Sports GM High Performance Coil Near Plug Wire Sets 28-1629-CBR

Spark Plug Wire Sets, Assembled, Solid Core, Black Ceramic Boots, Red, 8.00mm Diameter, 12 in. Length, GM, V8, Set

Part Number: GRN-28-1629-CBR

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

Denso Iridium Long Life Spark Plugs 5090

Spark Plugs, Iridium Long Life, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-5090

Not Yet Reviewed

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Edge Insight CS2 Monitors 84030

INSIGHT CS2 MONITOR

Part Number: EGE-84030

5.0 out of 5 stars ( 1 )

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Standard Motor Blue Streak Premium Street Performance Spark Plug Wire Sets 10026

Spark Plug Wires, Blue Streak Performance Street, Assembled, Spiral Core, 8.5mm, Black, Set

Part Number: SMP-10026

3.5 out of 5 stars ( 6 )

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Standard Motor Power Window Switches DWS-241

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

Part Number: SMP-DWS-241

4.13 out of 5 stars ( 8 )

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PerTronix Flame-Thrower Spark Plug Wire Sets 808224

SPARK PLUG WIRE SETS, PerTronix 808224 Flame-Thrower Spark Plug Wires 8 cyl 8mm 45 Degree Boots Black

Part Number: PNX-808224

3.2 out of 5 stars ( 5 )

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ICT Billet Wiring Harness Extensions WEMAP30-24

Wire Extension 24" LS Gen 3 MAP Manifold Absolute Pressure Sensor Connector

Part Number: ICB-WEMAP30-24

Not Yet Reviewed

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Summit Racing™ Street / Strip Series 8mm 300 Ohm Ignition Wires SUM-867830WS

Summit Racing™ Street / Strip Series 8mm 300 Ohm Ignition Wires SUM-867830WS

Spark Plug Wires, Street / Strip Series, 8mm, 300 Ohm, Blue, 12" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-867830WS

Not Yet Reviewed

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35 amps ACDelco Replacement Relay 13500126

Relays, Replacement, 35 amps, 12 V, 5 Blade Terminals, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Suzuki, Each

Part Number: ADO-D1780C

5.0 out of 5 stars ( 2 )

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Edelbrock Max-Fire Ultra-Spark 50 Spark Plug Wire Sets 22715

Spark Plug Wires, 8.5mm, Red, Short 9 in. Length, Set

Part Number: EDL-22715

4.0 out of 5 stars ( 8 )

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Caspers Electronics TPS Breakout Adapters 108103FIT

Breakout Adapter, FiTech to Late GM Adapter, Each

Part Number: CEI-108103FIT

4.5 out of 5 stars ( 2 )

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Powermaster HPR Large Frame Series Alternators 485503-17.5

Alt Denso Nat'l 245A 3" 6 grv Escalade,C,K Series, GMC HPR 17.5 Preset

Part Number: PWM-485503-175

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

ACDelco ABS Control Modules 19244894

ABS Control Module, Chevrolet/GMC, 6.0/6.6/8.1L, Each

Part Number: ADO-19244894

Not Yet Reviewed

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ACDelco Wiring Connectors 88862305

Wiring Pigtails, Replacement, Female Wire Connector Type, for Hyundai, AMC, Cadillac, Chevy, Chrysler, Ford, Geo, GMC, Jeep, Ram, Saturn, Suzuki, Each

Part Number: ADO-PT2386

5.0 out of 5 stars ( 1 )

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ACDelco ABS Wheel Speed Sensors 84356645

ABS Speed Sensors, ABS Wheel Speed Sensors, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-84356645

Not Yet Reviewed

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Standard Motor Wiring Connectors TX3A

Wiring Pigtail, Coolant Temperature Sensor, Each

Part Number: SMP-TX3A

4.6 out of 5 stars ( 5 )

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ACDelco Replacement Wiring Harness Connectors 12101937

Wiring Harness Connector, Replacement, Multipurpose, Male, 2-pin, Gray, Each

Part Number: ADO-PT209

5.0 out of 5 stars ( 1 )

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ACDelco Spark Plug Wire Sets 88862397

Spark Plug Wire Sets, Assembled, Spiral Core, Black, 7.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, V8, Set

Part Number: ADO-9748GG

3.0 out of 5 stars ( 2 )

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ICT Billet Wiring Harness Extensions WECKP30-36

Wire Extension LS Gen 3 White 3-Wire CKP Crankshaft Position Sensor Connector

Part Number: ICB-WECKP30-36

Not Yet Reviewed

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SCT Replacement Micro USB Cables 4520

Computer Programmer Accessory, Micro USB Cable, Replacement, iTSX, Livewire TS+, X4, Each

Part Number: SCL-4520

Not Yet Reviewed

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