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

Bosch Premium Original Equipment-Type Oxygen Sensors 15741

Oxygen Sensors, Premium Original Equipment-Type, for Hyundai, for Nissan, Chevy, Chrysler, Fiat, Ford, Jeep, Saab, Subaru, Suzuki, Toyota, Volvo, Each

Part Number: BCH-15741

5.0 out of 5 stars ( 1 )

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Standard Motor Wiring Connectors TX3A

Wiring Pigtail, Coolant Temperature Sensor, Each

Part Number: SMP-TX3A

4.6 out of 5 stars ( 5 )

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ACDelco GM Genuine Parts Ground Straps and Cables 15179982

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

Part Number: ADO-15179982

5.0 out of 5 stars ( 2 )

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Dorman Headlight Switches 901-142

Headlight Switch, OEM Replacement, Chevy, GMC, Each

Part Number: RNB-901-142

5.0 out of 5 stars ( 2 )

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Dorman Turn Signal Switches 2330856

Turn Signal Switches, Multi-function, With Cruise Control, Labeled, Wiring Included, Plastic, GM, Each

Part Number: RNB-2330856

Not Yet Reviewed

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Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186504

Harness Adapter, Nexus Rebel LS, Cable Operated, TPS, IAC, Chevrolet, LS, Each

Part Number: HTH-HT-186504

Not Yet Reviewed

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ACDelco Gold Headlight Switches 19381535

Electrical Switches, Gold Headlight Switches, Rotary, Plastic, Black, Lights Logo, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-19381535

5.0 out of 5 stars ( 2 )

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E3 Spark Plugs E3.44

Spark Plug, E3, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-44

4.0 out of 5 stars ( 3 )

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ACDelco Replacement Wiring Harness Connectors 88988963

Wiring Harness Connector, Replacement, OEM Type, Male, 2-pin, Black, Buick, Cadillac, Chevy, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-PT2183

Not Yet Reviewed

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Edge CTS3 Display Mounts 28602

Pillar Display Mount, CTS3, Black, Chevrolet, Kit

Part Number: EGE-28602

5.0 out of 5 stars ( 2 )

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ICT Billet Wiring Harness Extensions WEMAP30-24

Wire Extension 24" LS Gen 3 MAP Manifold Absolute Pressure Sensor Connector

Part Number: ICB-WEMAP30-24

Not Yet Reviewed

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Caspers Electronics MAP Harness Extensions 109080

Caspers Electronics MAP Harness Extensions 109080

Harness Extension, MAP Sensor, 26 in. Length, Chevy, Each

Part Number: CEI-109080

5.0 out of 5 stars ( 6 )

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Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 84044

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Black, Buick, Cadillac, Chevy, Pontiac, Hummer, Saab, Set

Part Number: TAY-84044

4.75 out of 5 stars ( 4 )

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Denso Ignition Coils 673-7108

Direct Ignition Coil, Direct Ignition Coil OE Quality

Part Number: DNP-673-7108

Not Yet Reviewed

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Eddie Motorsports Smooth Billet Coil Covers MS109-02MB

Ignition Coil Covers, Smooth, Billet Aluminum, Matte Black Powdercoated, Chevy, Pontiac, Small Block LS, Pair

Part Number: EMS-MS109-02MB

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Lingenfelter Performance Engineering Mass Airflow Sensors L480000000

Mass Airflow Sensors, 100.00mm I.D., Aluminum, Black, Electronics, Chevy, Cadillac, GMC, Hummer, Pontiac, Kit

Part Number: LPE-L480000000

1.0 out of 5 stars ( 1 )

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Denso Iridium Long Life Spark Plugs 5090

Spark Plugs, Iridium Long Life, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-5090

Not Yet Reviewed

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Standard Motor Camshaft Position Sensors PC273K

Camshaft Position Sensor, Replacement, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Each

Part Number: SMP-PC273K

Not Yet Reviewed

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ACDelco Spark Plug Wire Sets 88862397

Spark Plug Wire Sets, Assembled, Spiral Core, Black, 7.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, V8, Set

Part Number: ADO-9748GG

3.0 out of 5 stars ( 2 )

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ICT Billet Wiring Harness Extensions WEAPP30-72

LS Gen 3 Truck TAC Module Pedal Position 72" Wire Extension

Part Number: ICB-WEAPP30-72

Not Yet Reviewed

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Edelbrock Max-Fire Ultra-Spark 50 Spark Plug Wire Sets 22717

Spark Plug Wires, Max-Fire Ultra-Spark 50, Spiral Core, 50 ohms, 8.5mm, Red, Trucks, Buick, Cadillac, Chevy, GMC, Hummer, Saab, Small Block LS, Set

Part Number: EDL-22717

3.0 out of 5 stars ( 2 )

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Edge EvoHT Programmers 86040

Computer Programmer, EvoHT, Chevy, Dodge, Ford, GMC, Lincoln, Mazda, Mercury, Ram, Each

Part Number: EGE-86040

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Standard Motor T-Series Knock Sensors KS116T

Knock Sensor, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Each

Part Number: SMP-KS116T

5.0 out of 5 stars ( 2 )

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Scott Performance High Performance Spark Plug Wire Sets CH-LS-T-6

Spark Plug Wire Set, High Performance, 10mm Diameter, Coil Pack, Silicone Boot, Black, Spiral Core, 30 ohms/ft., Purple Wire, Chevy, Small Block, Set

Part Number: SCW-CH-LS-T-6

4.67 out of 5 stars ( 3 )

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ICT Billet Wiring Harness Extensions WECKP30-36

Wire Extension LS Gen 3 White 3-Wire CKP Crankshaft Position Sensor Connector

Part Number: ICB-WECKP30-36

Not Yet Reviewed

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