2003 CADILLAC Ignitions & Electrical

Autolite Double Platinum Spark Plugs PP5224

Spark Plug, Double Platinum, 14mm Thread, 0.750 in. Reach, Gasket Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5224

Not Yet Reviewed

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

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: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

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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Powermaster Street Alternators 582473

Alternator, Street, 165 Amps, Black Powdercoated Finish, Under Drive Serpentine Pulley, Cadillac, Chevy, GMC, Each

Part Number: PWM-582473

Not Yet Reviewed

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ACDelco Replacement Diodes 12135037

Diode Assemblies, Replacement, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-12135037

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Standard Motor Steering Wheel Position Sensors SWS21

Steering Wheel Position Sensor, OE Replacement, Buick, Cadillac, Chevrolet, Pontiac, Saturn, Each

Part Number: SMP-SWS21

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Bosch OE Platinum Spark Plugs 6704

Spark Plug, OE Platinum, Gasket Seat, 14mm Thread, 17.5mm Reach, Resistor, Each

Part Number: BCH-6704

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ACDelco Wiring Harnesses 19257603

Wiring Harness, Vapor Canister Vent Solenoid Harness, Use with 20907779 in place of 20948082, Cadillac, Chevy, GMC, Hummer, Isuzu, Suzuki, Each

Part Number: ADO-19257603

Not Yet Reviewed

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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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Delphi Oxygen Sensors ES20013

Oxygen Sensor, 4-wire, Thread-in, Buick, Cadillac, Chevy, GMC, Pontiac, Isuzu, Saturn, Each

Part Number: DFP-ES20013

Not Yet Reviewed

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TCI Racing Starters 351119

Starter, Mini, Black/Natural, 3.73:1 Gear Reduction Ratio, 12.0:1 Maximum Compression, 2.5 hp, LS, Chevy, Each

Part Number: TCI-351119

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Mishimoto Ignition Coils MMIG-LSSQ-9908

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

Part Number: MIO-MMIGLSSQ9908

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Granatelli Motor Sports Spark Plug Wires 28-1629HTL

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

Part Number: GRN-28-1629HTL

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

ACDelco GM Genuine Parts HVAC Blower Motor Resistors 22807122

Blower Motor Resistor, GM OE HVAC, Cadillac, Chevy, GMC, Each

Part Number: ADO-22807122

5.0 out of 5 stars ( 1 )

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SCT BDX Window Mounts 30490

SCT BDX Magnetic Window Mount, Each

Part Number: SCL-30490

5.0 out of 5 stars ( 1 )

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NGK Resistor Spark Plug Wire Sets 51430

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

Part Number: NGK-51430

Not Yet Reviewed

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Denso Platinum TT Spark Plugs 4504

Spark Plugs, Platinum TT, Gasket Seat, 14mm Thread, 19mm Reach, Resistor, Each

Part Number: DNP-4504

5.0 out of 5 stars ( 1 )

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Denso Iridium Power Spark Plugs 5325

Spark Plug, Iridium Power, IT16, 14mm Thread, 18.00mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-5325

Not Yet Reviewed

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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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40 amps ACDelco Replacement Relay 19106615

Relay, Replacement, 12 V, 30 amps, 4 Male Terminals, Buick, Cadillac, Chevy, Daewoo, Dodge, Pontiac, Saturn

Part Number: ADO-D1741C

4.67 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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Dorman ABS Speed Sensors 970-011

ABS Speed Sensor, GM, Each

Part Number: RNB-970-011

4.4 out of 5 stars ( 5 )

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Holstein Parts MAP Sensors 2MAP0001

Sensor, Manifold Pressure Sensor, MAP, Replacement, Each

Part Number: HLN-2MAP0001

Not Yet Reviewed

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Taylor Spiro-Pro Spark Plug Wire Sets 74244

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

Part Number: TAY-74244

5.0 out of 5 stars ( 3 )

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20 amps Standard Motor Relay RY-612

Relay, 12 V, 20 amps, Spade Terminal, Each

Part Number: SMP-RY612

Not Yet Reviewed

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