2003 GMC SIERRA 1500 HD Ignitions & Electrical - In Stock Filter Options - Vendor In Stock Filter Options

Chevrolet Performance Keys 23372321

KEY ASM-DR LK & IGN LK (UNCODED)

Part Number: NAL-23372321

Not Yet Reviewed

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Champion Double Platinum Power Spark Plugs 7015

Spark Plug, Double Platinum, Tapered, 14mm Thread, .708 in. Reach, Resistor, Each

Part Number: CPN-7015

Not Yet Reviewed

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Chevrolet Performance Alternator Wiring Components 21021808

F-NUT-BAT P

Part Number: NAL-21021808

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2026 if ordered today

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Estimated Ship Date: Jun 2, 2026 if ordered today

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

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

WIRES

Part Number: GRN-28-1629HTY

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

Spark Plug Wires, GM High Performance Coil Near Plug Wire Set, Assembled, Spiral Core, 8mm, Yellow, Straight Black Boots, Chevy, GMC, Pontiac, LS, Set

Part Number: GRN-28-1629HTYB

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Dorman Remanufactured Transfer Case Control Modules 599-114

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

Part Number: RNB-599-114

4.8 out of 5 stars ( 5 )

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Standard Motor Combination Switches CBS-1148

Switch - Dimmer

Part Number: SMP-CBS1148

Not Yet Reviewed

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Standard Motor Vehicle Speed Sensors SC168

Vehicle Speed Sensor, Cadillac, Chevy, GMC, Oldsmobile, Kit

Part Number: SMP-SC168

Not Yet Reviewed

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Summit Racing™ 86 Series 8mm 300 Ohm Ignition Wires SUM-867830RWS

Spark Plug Wires, 86 Series, 8mm, 300 Ohm, Red, 12" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-867830RWS

Not Yet Reviewed

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Summit Racing™ 88 Series 50 Ohm 8.5mm Ignition Wires SUM-887828WS

Spark Plug Wires, 88 Series, Street / Strip, 8.5mm, Black, 50 Ohm, 9" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-887828WS

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Summit Racing™ 86 Series 8mm 300 Ohm Ignition Wires SUM-867828RWS

Spark Plug Wires, 86 Series, 8mm, 300 Ohm, Red, 9" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-867828RWS

Not Yet Reviewed

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Hella ABS Speed Sensors 358218511

SENSOR, WHEEL SPEED 6PU

Part Number: HLA-358218511

5.0 out of 5 stars ( 1 )

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Bosch Premium Universal Type Oxygen Sensors 15730

Oxygen Sensor, Universal Replacement, OE SmartLink™, Each

Part Number: BCH-15730

2.2 out of 5 stars ( 5 )

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ACDelco Wiring Connectors and Pigtails 86816072

CONNECTOR INLINE TO TRLR HARN *BLACK

Part Number: ADO-86816072

Not Yet Reviewed

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Quarter Master Ultra-Duty Starters 115177

Starter, Ultra-Duty, Mini, Standard Rotation, Cadillac, Chevy, GMC, Pontiac, Hummer, Each

Part Number: QTM-115177

Not Yet Reviewed

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Interstate Mega-Tron II Automotive Batteries MT-78

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 )

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In Store Purchase Only

ACDelco ABS Control Modules 19244894

ABS Control Module, Chevrolet/GMC, 6.0/6.6/8.1L, Each

Part Number: ADO-19244894

Not Yet Reviewed

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

Spark Plug Wires, 8mm, Blue, Straight Boots, Chevy, 4.8/5.3/6.0L, Set

Part Number: GRN-28-1629S

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Granatelli Motor Sports MPG Plus Spark Plug Wires 38-1629MPG

Spark Plug Wires, High Performance, 8mm, Solid Core, Green, Straight Boots, Cadillac, Chevy, Pontiac, Saab

Part Number: GRN-38-1629MPG

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

Standard Motor Electrical Switches SLS303T

Stoplight Switch

Part Number: SMP-SLS303T

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Superchips Dashpaq Plus Computer Programmers 20601

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

Part Number: SRC-20601

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Edge Gas Evolution CS2 Programmers 85350

4 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 82005

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

Part Number: TAY-82005

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Dorman Turn Signal Switches 2330860

Turn Signal Switches, Multi-function, Labeled, without Cruise Control, Wiring Not Included, Plastic, GM, Each

Part Number: RNB-2330860

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Standard Motor Wiring Pigtails S-1361

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: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Standard Motor Wiring Connectors S-1491

EM- Air Bag Sensor Cn

Part Number: SMP-S-1491

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today