2003 CHEVROLET SILVERADO-2500-HD Electrical Wiring

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 )

Estimated Ship Date: Today

Modules, LED, Each

Part Number: PPP-20-702

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Today

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

Part Number: ADO-13500114

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wiring Pigtails, 3-pin, Male, Black, for use on Acura®, Chevy, Chrysler, Ford, GMC, International, Isuzu, Mitsubishi, Saab, Saturn, Suzuki, Each

Part Number: SMP-HP4440

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: ADO-15179982

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: ADO-PT209

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

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

Part Number: FLE-S0429

Not Yet Reviewed

Estimated Ship Date: Today

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

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

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

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 Harness Connector, Replacement, OEM Type, Female, 2-pin, White, Each

Part Number: ADO-PT249

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Estimated Ship Date: Today

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

Part Number: ADO-PT1235

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

A/C Clutch Cycle Switch

Part Number: UAC-SW10082C

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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• Special Order

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

Part Number: RNB-645-595

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Estimated Ship Date: Today

Wire Connectors, Oil Level/Multi-use Sensor Pigtail, 6 in., 2-pin, Female Connector, Black, White Wires, Duramax, Chevy, GMC, Each

Part Number: FLE-S0481

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Estimated Ship Date: Today

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: Jan 27, 2026 if ordered today

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KEY ASM-DR LK & IGN LK (UNCODED)

Part Number: NAL-23372321

Not Yet Reviewed

Estimated Ship Date: Today

HVAC Pressure Switch

Part Number: UAC-SW11212C

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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• Special Order

HVAC Pressure Switch

Part Number: UAC-SW2350C

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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• Special Order

Stoplight Switch

Part Number: SMP-SLS303T

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Drop Ship
• Special Order