GMC SIERRA 2500 HD CLASSIC Ignitions & Electrical

NGK Resistor Spark Plug Wire Sets 51430

Spark Plug Wires, Resistor, 7mm, Blue, Stock Boots, Cadillac, Chevrolet, GMC, Hummer, Set

Part Number: NGK-51430

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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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Dorman Power Window Switches 920-020

Power Window Switch, Replacement, Driver Master Switch, With Power Folding Mirrors, 8 Button, Cadillac, Chevy, GMC, Each

Part Number: RNB-920-020

5.0 out of 5 stars ( 1 )

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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

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Diesel Rx Glow Plugs DRX00057

Glow Plug, Chevy, GMC, 6.6L, Duramax, Each

Part Number: DRX-DRX00057

4.22 out of 5 stars ( 9 )

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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: May 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

Dorman Vehicle Speed Sensors 917-618

Vehicle Speed Sensor, Buick, Cadillac, Chevy, GMC, Oldsmobile, Each

Part Number: RNB-917-618

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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

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SCT Livewire TS+ Pod Adapters 30604

Mount, Pod Adapters, Livewire TS+, Each

Part Number: SCL-30604

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PerTronix Flame-Thrower Ignition Coils 30848

Ignition Coils, Flame-Thrower, Coil Pack Style, Epoxy, Female/Socket, Square, Black, 35,000 V, Buick, Cadillac, Chevy, GMC, Hummer, LS, Set of 8

Part Number: PNX-30848

2.0 out of 5 stars ( 1 )

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35 amps ACDelco Replacement Relay 13503102

Relays, Replacement, 12 V, 35 amps, 4 Blade Terminals, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Each

Part Number: ADO-13503102

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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

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Standard Motor Wiring Connectors S-551

Wiring Pigtails, 4-pin, Male, Black, for use on Acura®, for use on Honda®, Buick, Cadillac, Chevy, Chrysler, GMC, Isuzu, Jeep, Pontiac, Toyota, Each

Part Number: SMP-S551

5.0 out of 5 stars ( 2 )

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ACDelco Replacement Wiring Harness Connectors 12101857

Wiring Harness Connector, Replacement, OEM Type, Female, 2-pin, White, Each

Part Number: ADO-PT249

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Holstein Parts MAP Sensors 2MAP0001

Sensor, Manifold Pressure Sensor, MAP, Replacement, Each

Part Number: HLN-2MAP0001

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Banks Power PedalMonster Throttle Response Enhancers 64315

Throttle Response Enhancer, PedalMonster, Molex MX64, 6 Way, Stand Alone, Mobile Phone App, Each

Part Number: GBE-64315

3.0 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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Granatelli Motor Sports GM High Performance Coil Near Plug Wire Sets 28-1811HTY

Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Yellow Wires, 8.00mm Diameter, Buick, Cadillac, Chevrolet, GMC, Pontiac, V8, Set

Part Number: GRN-28-1811-HTY

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

Standard Motor Wiring Connectors S-697

Wiring Pigtails, 2-pin, Female, Black, for use on Acura®, for Infiniti, for Kia, for Nissan, BMW, Chevy, Chrysler, Ford, GMC, Subaru, Toyota, Each

Part Number: SMP-S697

5.0 out of 5 stars ( 1 )

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Taylor Spiro-Pro Spark Plug Wire Sets 74044

Spark Plug Wires, Spiro-Pro, 8mm, Black, Straight Boots, Chevy, Pontiac, LS1, LS6, Set

Part Number: TAY-74044

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Standard Motor MAP Sensors AS59T

MAP Sensor, OEM Replacement, Stock-Style, Each

Part Number: SMP-AS59T

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ACDelco Wiring Connectors 13584094

Wiring Connectors and Pigtails, ACDelco Wiring Connectors, Pigtail Connector, 6 Wires, Multi-Purpose Connector, Each

Part Number: ADO-PT2712

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Summit Racing™ High-Output Ignition Coils SUM-850501-1R

Ignition Coils, Coil Pack, D585 Style, Epoxy, Round, Red, LS, V8, Chevy, Cadillac, GMC, Buick, Hummer, Isuzu, Each

Part Number: SUM-850501-1R

2.0 out of 5 stars ( 1 )

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Standard Motor Throttle Position Sensors TH602

Throttle Position Sensor, Replacement, Buick, Chevrolet, GMC, Hummer, Isuzu, Workhorse, Workhorse Custom Chassis, Each

Part Number: SMP-TH602

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Granatelli Motor Sports Spark Plug Wires 28-1629HTBB

Spark Plug Wire Sets, Assembled, Solid Core, Black, 8.00mm Diameter, Cadillac, Chevrolet, GMC, Hummer, Pontiac, V8, Set

Part Number: GRN-28-1629HTBB

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today