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

Summit Racing™ Street Series 500 Ohm 8mm Ignition Wires SUM-877830

Summit Racing™ Street Series 500 Ohm 8mm Ignition Wires SUM-877830

Spark Plug Wires, Summit Street Series, 8mm, 500 Ohm, Black, 12" Leads, OEM Coil Boots, LS, V8, Set

Part Number: SUM-877830

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Denso Platinum TT Spark Plugs 4511

Spark Plugs, Platinum TT, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-4511

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Intellitronix High Output Ignition Coils IGCL001-LS

Ignition Coils, Coil Pack, Epoxy, Square, Red, LS, V8, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Set of 8

Part Number: IZL-IGCL001-LS

4.0 out of 5 stars ( 2 )

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Davis Unified Ignition Screamin' Demon Coils 31731

Ignition Coil Pack, Screamin' Demon, Square, Epoxy Filled, Black, 45,000 V, Each

Part Number: DUI-31731

4.0 out of 5 stars ( 9 )

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MechMan Elite Series Alternators 11348250

2001-2006 GM Truck - SUV 6.6L Duramax Diesel

Part Number: MEH-11348250

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Granatelli Motor Sports GM High Performance Coil Near Plug Wire Sets 28-1545-CBB

Spark Plug Wire Sets, Assembled, Solid Core, Black Ceramic Boots, Black, 8.00mm Diameter, 10 in. Length, Cadillac, Chevrolet, GMC, Hummer, V8, Set

Part Number: GRN-28-1545-CBB

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

Dorman Neutral Safety Switches 924-435

Safety Switch

Part Number: RNB-924-435

Not Yet Reviewed

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Standard Motor Power Window Switches DWS-241

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

Part Number: SMP-DWS-241

4.13 out of 5 stars ( 8 )

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Dorman Battery Boxes and Trays 00085

Tray, Battery, Steel, Rubber, Cadillac, Chevrolet, GMC, Each

Part Number: RNB-00085

5.0 out of 5 stars ( 4 )

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ACDelco Wiring Connectors 88987997

Wiring Pigtails, Replacement, Female Wire Connector Type, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: ADO-PT1799

5.0 out of 5 stars ( 1 )

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MechMan Dual Bracket Kits D201

Alternators, Dual Bracket, 400 Amps, Black, Anodized, 12 V, Chevy, GMC, Kit

Part Number: MEH-D201

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Scott Performance High Performance Spark Plug Wire Sets CH-LS-T-7

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

Part Number: SCW-CH-LS-T-7

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

ACDelco Wiring Connectors 88862305

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 )

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Powermaster XS Volt Alternators 5823783

Alternator, XS Volt, GM AD244 Case, 220 amps, Under Drive Serpentine Pulley, Offset Mount, Black Powdercoat, Internal Regulator, Chevrolet, GMC, Each

Part Number: PWM-5823783

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Granatelli Motor Sports GM High Performance Coil Near Plug Wire Sets 28-1545-CBY

Spark Plug Wire Sets, Assembled, Solid Core, Black Ceramic Boots, Yellow, 8.00mm Diameter, 10 in. Length, Cadillac, Chevrolet, GMC, Hummer, V8, Set

Part Number: GRN-28-1545-CBY

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

Summit Racing™ Pro LS Ignition Coil Covers SUM-440700

Ignition Coil Covers, Aluminum, Black Powdercoated, Chevy GM, LS/LSX, Gen III/IV, Pair

Part Number: SUM-440700

4.33 out of 5 stars ( 3 )

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Autolite Copper Core Spark Plugs 5245

Spark Plug, Copper Core, Resistor, 14mm x 1.25, Tapered Seat, 0.679 in, Reach, Each

Part Number: ATL-5245

Not Yet Reviewed

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Edge Juice Modules with Attitude CTS3 Programmers 21500-3

Computer Programmer, Juice Module with Attitude CTS3 Programmer, Chevy, GMC, 6.6L Diesel, LB7, Kit

Part Number: EGE-21500-3

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Standard Motor Wiring Connectors HP3850

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

Not Yet Reviewed

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MSD APS Replacement Starter Solenoids 5086

Starter Solenoid, Replacement For PN 5096, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, LS Engine, Each

Part Number: MSD-5086

Not Yet Reviewed

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Moroso Mag-Tune Spark Plug Wires 9643M

Spark Plug Wires, Mag-Tune, Assembled, Spiral Core, Black, 7.0mm, Chevy, GMC, Small Block LS, Set

Part Number: MOR-9643M

Not Yet Reviewed

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Summit Racing™ 88 Series 50 Ohm 8.5mm Ignition Wires SUM-887830WS

Spark Plug Wires, 88 Series, Street / Strip, 8.5mm, Black, 50 Ohm, 12" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-887830WS

Not Yet Reviewed

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Holstein Parts Crankshaft Sensors 2CRK0065

Sensor, Engine Crankshaft Position Sensor, Replacement, Each

Part Number: HLN-2CRK0065

Not Yet Reviewed

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Eddie Motorsports Ball Milled Billet Coil Covers MS109-04HL

Coil Covers, Aluminum, Matte Black Powdercoated with Ball Milled Grooves, Chevy, LS, With Oil Fill Cutout, Pair

Part Number: EMS-MS109-04HL

2.67 out of 5 stars ( 3 )

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Granatelli Motor Sports GM High Performance Coil Near Plug Wire Sets 28-1629HTRB

Spark Plug Wires, Coil-Near-Plug, Red, GM, LS, Set

Part Number: GRN-28-1629HTRB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today