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

Fleece Performance Wiring Pigtails FPE-HAR-MU-PT-1

Replacement Sensor Connector With Pigtail for L5P Duramax and GM Vehicles (L5P Duramax Sensor Pigtail 1)

Part Number: FLE-S0404

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186506

Harness Adapter, Nexus Rebel LS, DBW, 8-Pin, Chevrolet, LS, Each

Part Number: HTH-HT-186506

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Wiring Connectors S-550

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: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Wiring Connectors HP4375

Wiring Pigtails, Male, for use on Honda®, AMC, Buick, Cadillac, Chevy, Dodge, Ford, GMC, Isuzu, Jeep, Lincoln, Olds, Pontiac, Saturn, Suzuki, Each

Part Number: SMP-HP4375

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Relays RY-585

Standard Relay

Part Number: SMP-RY585

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

ICT Billet Wiring Harness Extensions WEPUR30-12

Wire Extension 12" LS Purge Valve EVAP Solenoid

Part Number: ICB-WEPUR30-12

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Wiring Connectors HP4240

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: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fleece Performance Wiring Harness Extensions FPE-HAR-RP-EXT

Wiring Wire Extension, 18 in., MAP Sensor, Fuel Pressure Sensor, Chevy, GMC, Dodge, Ram, Each

Part Number: FLE-FPE-HARRPEXT

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Wiring Connectors 645-631

Wiring Pigtails, Wiring Connectors, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: RNB-645-631

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 Wiring Connectors 15306071

Wiring Pigtail, Alternator, Female, 1-pin, Each

Part Number: ADO-PT1235

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Bosch Relays 0986AH0115

Relays, Buick, Cadillac, Chevrolet, GMC, Pontiac, Each

Part Number: BCH-0986AH0115

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Power Window Switches 920-024

Power Window Switch, Front Left, 5-button, Rocker, Black, Chevy, GMC, Each

Part Number: RNB-920-024

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

Fleece Performance Wiring Pigtails FPE-HAR-RP-PT

Rail Pressure Sensor Pigtail

Part Number: FLE-FPE-HAR-RPPT

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Wiring Connectors 645-595

Wiring Pigtails, Wiring Connectors, Female, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: RNB-645-595

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Ignition Key Lock Cylinders 924-725

Ignition Switch Lock Cylinder, Buick, Cadillac, Chevrolet, GMC, Pontiac, Each

Part Number: RNB-924-725

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Wiring Connectors 84756

7-Wire GM Neutral Safety Switch Harness

Part Number: RNB-84756

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Dorman Wiring Connectors 645-785

Wiring Pigtails, Wiring Connectors, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Saab, Saturn, Workhorse, Workhorse Custom Chassis, Each

Part Number: RNB-645-785

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Wiring Connectors S-656

Wiring Pigtails, 3-pin, Male, Black, for use on Acura®, for Hyundai, Buick, Cadillac, Chevy, Dodge, GMC, Mitsubishi, Olds, Pontiac, Saab, Suzuki, Each

Part Number: SMP-S656

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Power Door Lock Switches DS-2128

Switch, Power Door Lock, Plastic, Black, Chevy, GMC, Each

Part Number: SMP-DS2128

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Standard Motor Wiring Connectors S-524

Wiring Pigtails, 2-pin, Male, Black, for use on Honda®, for Hyundai, for Nissan, BMW, Chevy, Chrysler, Dodge, Ford, GMC, Saab, Toyota, Volvo, Each

Part Number: SMP-S524

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ACDelco GM Genuine Parts HVAC Blower Motor Resistors 22807122

Blower Motor Resistor, GM OE HVAC, Cadillac, Chevy, GMC, Each

Part Number: ADO-22807122

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Nitrous Outlet Switch Panels 00-11010

Nitrous Outlet Switch Panels 00-11010

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

Part Number: NXO-00-11010

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

ICT Billet MAF Harness Extensions WAMAF40-6

Wire Adapter Harness Mass Air MAF LS Gen 4 Truck Tube Style to LS3 Card Style

Part Number: ICB-WAMAF40-6

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Nitrous Outlet Switch Panels 00-11009

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

Part Number: NXO-00-11009

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Standard Motor Wiring Connectors S-575

Wiring Pigtails, 2-pin, Male, Black, for Hyundai, for Kia, Buick, Cadillac, Chevy, Dodge, Fiat, Genesis, GMC, Isuzu, Jeep, Saab, Saturn, Suzuki, Each

Part Number: SMP-S575

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air