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

Dragon Fire Performance Ignition Coils DFC1004

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

Part Number: DFR-DFC1004

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 14, 2026 if ordered today

Davis Unified Ignition LiveWires C9030PR

Spark Plug Wires, LiveWires, Spiral Core, 10mm, Purple Wires, Black Boots, Chevy, GMC, Hummer, V8, Set

Part Number: DUI-C9030PR

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Hella Relays 933332571

Multi Purpose Relay, Relays

Part Number: HLA-933332571

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 14, 2026 if ordered today

Standard Motor Seat Heater Switches DS-3092

Switch, Heated Seat, Plastic, Black, Cadillac, Chevy, GMC, Each

Part Number: SMP-DS-3092

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 10, 2026 if ordered today

Standard Motor Combination Switches CBS-1149

Switch - Dimmer

Part Number: SMP-CBS1149

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 10, 2026 if ordered today

Delphi Mass Airflow Sensors AF10146

Mass Air Flow Sensor

Part Number: DFP-AF10146

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 9, 2026 if ordered today

Fleece Performance Wiring Pigtails FPE-HAR-DMAX-LB7-INJ-PT

Wiring Harnesses, Fleece Performance, Outer Injector, External Connector Pigtail, 6 in. Long, Chevy, GMC, 2500, 3500, HD, 6.6L, Duramax, LB7, Each

Part Number: FLE-S0453

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Fleece Performance Wiring Pigtails FPE-HAR-DMAX-MAP-0107

Wiring Pigtail, Barometric Pressure Sensor Connector, Cam Position Connector, Crankshaft Position Connector, MAP Sensor Connector, Chevy, GMC, Each

Part Number: FLE-S0444

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

JBA Performance Exhaust PowerCables Spark Plug Wire Sets W0855

Spark Plug Wires, Powercables, Assembled, 8mm, Spiral Core, Red, Chevy, 12 in. Long, GMC, 4.8/5.3/6.0L, Set

Part Number: JBA-W0855

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Mar 11, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 11, 2026 if ordered today

Fleece Performance Wiring Pigtails FPE-HAR-DMAX-OP-0310

Wire Connectors, Oil Pressure Sensor Pigtail, 3-pin, Female Connector, Black, White Wires, Duramax, Chevy, GMC, Each

Part Number: FLE-S0479

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73705

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73705

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 18, 2026 if ordered today

Dorman Replacement Electrical Switches 901-202

Power Seat Switch - Left Side 8 Way

Part Number: RNB-901-202

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 12, 2026 if ordered today

Fleece Performance Wiring Pigtails FPE-HAR-MU-PT-11

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

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 82605

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Blue, Straight Boots, Cadillac/Chevy, GMC, 4.8/5.3/6.0L, Set

Part Number: TAY-82605

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Mar 9, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 9, 2026 if ordered today

Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 82225

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Red, Stock, Chevy, GMC, Pickup, 8.1L, Set

Part Number: TAY-82225

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 9, 2026 if ordered today

Fleece Performance NSBU Pigtails FPE-HAR-GM-NSBU-0104

Wiring Pigtail, NSBU, 6 in Pigtail, 11 Pins, Allison 1000/2000 SeriesTransmission, Chevy, GMC, Pair

Part Number: FLE-S0582

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 30, 2026 if ordered today

Taylor Spiro-Pro Spark Plug Wire Sets 72005

Spark Plug Wires, Spiro-Pro, 8mm, Black, Straight Boots, Cadillac, Chevy, GMC, 4.8/5.3/6.0L, V8, Set

Part Number: TAY-72005

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ACCEL ProConnect Spark Plug Wire Sets 118063

Spark Plug Wire Sets, ProConnect, Assembled, Spiral Core, Coil Pack, Straight Plug Boots, Black, Cadillac, Chevrolet, GMC, Hummer, Small Block LS, Set

Part Number: ACC-118063

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 6, 2026 if ordered today

ACCEL ProConnect Spark Plug Wire Sets 118064

Spark Plug Wire Sets, ProConnect, Assembled, Spiral Core, Coil Pack, Straight Plug Boots, Black, Buick, Cadillac, Chevrolet, GMC, Small Block LS, Set

Part Number: ACC-118064

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Dorman Blower Motor Resistors 973-508

Blower Motor Resistor, Includes Resistor Pigtail, Each

Part Number: RNB-973-508

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 12, 2026 if ordered today

Denso Oxygen Sensors 234-4286

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Cadillac, Chevrolet, GMC, Pontiac, Saturn, Each

Part Number: DNP-234-4286

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 16, 2026 if ordered today

Dorman Camshaft Position Sensors 907-816

Engine Camshaft Position Sensor, Magnetic Camshaft Position Sensor

Part Number: RNB-907-816

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Standard Motor MAP Sensors AS314

Sensor, MAP, GM Style, 2 Bar Range, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: SMP-AS314

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Denso Ignition Wire Sets 671-8062

Spark Plug Wires, Stock, OE Replacement, Black, Silicone, 7.00mm, Set

Part Number: DNP-671-8062

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 16, 2026 if ordered today

Standard Motor Wiring Pigtails S-1271

EM- Cruise Module Cn

Part Number: SMP-S-1271

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 10, 2026 if ordered today