2003 GMC SIERRA-1500-HD Ignitions & Electrical

Oxygen Sensor, Universal Replacement, OE SmartLink™, Each

Part Number: BCH-15730

2.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

Ignition Coils, Flame-Thrower, Coil Pack Style, Epoxy, Female/Socket, Square, Black, 35,000 V, Buick, Cadillac, Chevy, GMC, Hummer, LS, Each

Part Number: PNX-30841

Not Yet Reviewed

Estimated Ship Date: Today

Spark Plug Wire, Spiral Core, 7mm, Black, Stock Boots, Cadillac, Chevy, GMC, Hummer, Set

Part Number: DFP-XS10389

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 2, 2025 if ordered today

• Drop Ship
• $15.00 Summit Bucks
• Special Order

MAP SENSOR

Part Number: BCK-158-0748

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

• Drop Ship
• Special Order

EM- Cruise Module Cn

Part Number: SMP-S-1271

Not Yet Reviewed

Estimated Ship Date: Oct 1, 2025 if ordered today

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• Special Order

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4212

Not Yet Reviewed

Estimated Ship Date: Today

Resistor, Blower Motor Resistor, Replacement, Each

Part Number: HLN-2BMR0087

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

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• Special Order

LED Light Harness, Plug and Play load resistor system - Fits 1156

Part Number: PUT-240003

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

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Ignition Coils, High Performance, Direct Replacement, Round, Epoxy, Black, Chevy, LS, Each

Part Number: DFR-DFC1004

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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• Special Order

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

Part Number: RNB-645-300

Not Yet Reviewed

Estimated Ship Date: Oct 3, 2025 if ordered today

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• Special Order

Wiring Connector and Pigtail, 6-pin, 10 To 18-gauge, Male, Cadillac, Chevrolet, GMC, Pontiac, Each

Part Number: SMP-S-1361

Not Yet Reviewed

Estimated Ship Date: Oct 1, 2025 if ordered today

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• Special Order

SENSOR, SPD INPUT & OUTPUT

Part Number: NAL-24203876

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Drop Ship
• Special Order

ABS Speed Sensor

Part Number: SMP-ALS3077T

Not Yet Reviewed

Estimated Ship Date: Oct 2, 2025 if ordered today

• Drop Ship
• Special Order

Multi-Function Relay

Part Number: SMP-RY-1757

Not Yet Reviewed

Estimated Ship Date: Oct 1, 2025 if ordered today

• Drop Ship
• Special Order

WIRES

Part Number: GRN-28-1629HTY

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

WIRES

Part Number: GRN-28-1629HTYB

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Electrical Switches, Driver Information Switches, Push Actuation, Lighted, Plastic, Black, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Olds, Each

Part Number: RNB-901-122

Not Yet Reviewed

Estimated Ship Date: Today

Transfer Case Control Module, 4-button Selectable Type, Chevy, GMC, Each

Part Number: RNB-599-114

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Core Charge $200.00
• Free Shipping

Spark Plug Wire Sets, OE Replacement, Silicone, 7mm, Cadillac, Chevrolet, GMC, LS, V8, Set

Part Number: SMP-7873

Not Yet Reviewed

Estimated Ship Date: Today

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: Today

Computer Programmer, Dashpaq+, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: SRC-20601

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

CONNECTOR INLINE TO TRLR HARN *BLACK

Part Number: ADO-86816072

Not Yet Reviewed

Estimated Ship Date: Today

SENSOR, WHEEL SPEED 6PU

Part Number: HLA-358218511

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Battery, Mega-Tron II, 12 V, Starting, 700 Cold Cranking Amps, Side Posts, Each

Part Number: ISB-MT-78

5.0 out of 5 stars ( 6 )

• Core Charge $18.00
• Restricted
• Free Shipping

Multi Purpose Wire Connector

Part Number: ADO-PT1589

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping