GMC SIERRA 2500 HD Electrical Wiring

Wiring Connector and Pigtail, Pigtail Connector Style, 12 To 18-gauge, 4-pin, Male, White, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saturn, Each

Part Number: SMP-S2904

Not Yet Reviewed

Estimated Ship Date: Today

Relay, 40 Amp, 12 V, Buick, Cadillac, Chevy, Chrysler, Dodge, Eagle, Geo, GMC, Hummer, Jeep, for Nissan, Oldsmobile, Pontiac, Porsche, Saab, Each

Part Number: SMP-RY242

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Transmission Range Sensor, Chevy, GMC, Workhorse, Workhorse Custom Chassis, Allison 1000, Each

Part Number: RNB-511-102

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

Wiring Harness, Vapor Canister Vent Solenoid Harness, Use with 20907779 in place of 20948082, Cadillac, Chevy, GMC, Hummer, Isuzu, Suzuki, Each

Part Number: ADO-19257603

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Estimated Ship Date: Today

• $20 Summit Bucks

Wiring Pigtails, 1-pin, Female, Black, for use on Acura®, for use on Honda®, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Saturn, Each

Part Number: SMP-HP3850

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Estimated Ship Date: Today

Ignition Switch, Replacement, 7 Way Female Connector, Plastic, Black, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Each

Part Number: RNB-924-715

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Relay, 30 Amp, 12 V, Stock, Each

Part Number: SMP-RY246

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Estimated Ship Date: Today

EM- Auto Lvl Cmpr Mtr Cn

Part Number: SMP-S-1340

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• Special Order

Power Window Switch, Driver Side Front, OEM Style, Rocker, Plastic, Black, Cadillac, Chevy, GMC, Each

Part Number: RNB-901-090

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: SMP-DWS-241

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: RNB-924-725

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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, 2-pin, Female, Black, for use on Acura®, for Infiniti, for Kia, for Nissan, BMW, Chevy, Chrysler, Ford, GMC, Subaru, Toyota, Each

Part Number: SMP-S697

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wiring Pigtails, 2-pin, Male, Black, for use on Acura®, for use on Honda®, for Nissan, Buick, Cadillac, Chevy, Chrysler, Isuzu, Jeep, Toyota, Each

Part Number: SMP-S553

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wiring Connectors and Pigtails, ACDelco Wiring Connectors, Pigtail Connector, 3 Wires, Multi-Purpose Connector, Each

Part Number: ADO-PT3837

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• $20 Summit Bucks
• Special Order

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

• $20 Summit Bucks

Relays, Replacement, 12 V, 35 amps, 4 Blade Terminals, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: ADO-13503102

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Estimated Ship Date: Today

• $20 Summit Bucks

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

Part Number: SMP-HP4240

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Estimated Ship Date: Today

Wiring Pigtails, 4-pin, Male, Black, for use on Acura®, for use on Honda®, Buick, Cadillac, Chevy, Chrysler, GMC, Isuzu, Jeep, Pontiac, Toyota, Each

Part Number: SMP-S551

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Switch, Power Mirror, Plastic, Black, Chevy, GMC, Each

Part Number: RNB-901-124

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

Electrical Switches, ACDelco Replacement Switches, Trailer Brake Control Switch, Chevy, GMC, Each

Part Number: ADO-84109433

Not Yet Reviewed

Estimated Ship Date: Today

• $20 Summit Bucks

Automatic Transmission Wiring Harnesses, Replacement, Chevrolet, GMC, Hummer, Each

Part Number: ATP-JE-36

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ignition Lock Cylinder, Buick, Cadillac, Chevy, GMC, Hummer, Each

Part Number: RNB-924-716

5.0 out of 5 stars ( 1 )

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

Not Yet Reviewed

Estimated Ship Date: Today

• $20 Summit Bucks

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

• Free Shipping