2003 CADILLAC Ignitions & Electrical - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $125 at Summit Racing

Champion Platinum Power Spark Plugs 3015

Spark Plug, Platinum Power, 14mm Thread, .708 in. Reach, Resistor, Buick, Chevy, Oldsmobile, Isuzu, GMC, Each

Part Number: CPN-3015

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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FAST XR Series Ignition Coils 30387-8

Ignition Coils, XR Series, Black, 50,000 Volts Max, V8, Round Truck Style, LS, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Set of 8

Part Number: FST-30387-8

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Taylor ThunderVolt 8.2mm Spark Plug Wire Sets 84644

Spark Plug Wires, ThunderVolt, Spiro-Wound, 8.2mm, Blue, Cadillac, Chevy, Pontiac, LS1/LS6, Set

Part Number: TAY-84644

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Autolite Double Platinum Spark Plugs PP5245

Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5245

Not Yet Reviewed

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ACDelco Wiring Connectors 13585316

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

Part Number: ADO-PT2782

Not Yet Reviewed

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Standard Motor Wiring Connectors HP3980

Wiring Pigtails, 2-pin, Female, Black, for use on Acura®, for Hyundai, for Nissan, Chevy, Chrysler, Ford, GMC, Mercedes-Benz, Toyota, Volkswagen, Each

Part Number: SMP-HP3980

Not Yet Reviewed

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Autolite XP Xtreme Performance Spark Plugs XP104

Spark Plug, XP, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Non-resistor, Each

Part Number: ATL-XP104

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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ACCEL Super Coils 140043K-8

Ignition Coils, Super, Coil Pack Style, Female/Socket, Epoxy, Black, Square, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Set of 8

Part Number: ACC-140043K-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Standard Motor T-Series Crankshaft Position Sensors PC278T

Crankshaft Position Sensor, T-Series, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: SMP-PC278T

Not Yet Reviewed

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NTK Oxygen Sensors 21549

Oxygen Sensor, 4-Wire, 0-1 V, Front, Cadillac, Chevy, GMC, 6.0/8.1L, V8, Each

Part Number: NGK-21549

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ACDelco Conventional Resistor Spark Plugs 19354418

Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Each

Part Number: ADO-R44LTSM

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Mishimoto Ignition Coils MMIG-LSHS-9908

Ignition Coil, Stock Replacement, Black, Epoxy, Phenolic Resin Shell, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Set of 8

Part Number: MIO-MMIGLSHS9908

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Standard Motor Coolant Temperature Sending Units TX3T

Sending Unit, Temperature, 3/8 in. NPT, Each

Part Number: SMP-TX3T

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Dorman Power Window Switches 901-075

Power Window Switch, Master Switch, 8 Buttons, Black/Brown, Plastic, Illuminated, Cadillac, Chevy, GMC, Each

Part Number: RNB-901-075

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ACDelco Replacement Relays 13500114

Relay, Multi Purpose, High Power, General, 8386, Each

Part Number: ADO-13500114

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Standard Motor Blue Streak Premium Street Performance Spark Plug Wire Sets 10026

Spark Plug Wires, Blue Streak Performance Street, Assembled, Spiral Core, 8.5mm, Black, Set

Part Number: SMP-10026

3.5 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Dorman Knock Sensor Grommets 42003

Knock Sensor Grommet / Seal, Gen III LS Valley Cover, 2 Req'd per engine, Sold each

Part Number: RNB-42003

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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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 )

Estimated Ship Date: Tomorrow

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Edge Insight CS2 Monitors 84030

INSIGHT CS2 MONITOR

Part Number: EGE-84030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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

Spark Plug Wire Sets, Assembled, Solid Core, Black Ceramic Boots, Red, 8.00mm Diameter, 12 in. Length, GM, V8, Set

Part Number: GRN-28-1629-CBR

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Denso Platinum TT Spark Plugs 4511

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

Part Number: DNP-4511

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Standard Motor T-Series Neutral and Backup Safety Switches NS85T

Neutral Safety and Backup Light Switch, T-Series, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Each

Part Number: SMP-NS85T

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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35 amps ACDelco Replacement Relay 13500126

Relays, Replacement, 35 amps, 12 V, 5 Blade Terminals, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Suzuki, Each

Part Number: ADO-D1780C

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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