2003 CADILLAC Ignitions & Electrical

Ignition Coil Wiring Harness, Pro Series, Vortec/LQ Style Coils, Pair

Part Number: WRS-WPVRTCPH

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Ignition Coil, Socket, Coil Pack Style, Round, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: DFP-GN10119

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

• $15 Summit Bucks

Ignition Coil, MSC II Coil Pack, D580 Style, Epoxy, Square, Red, GM LS1/LS6, Each

Part Number: MSD-8285

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73682

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Spark Plug Wires, Street / Strip Series, 8mm, 300 Ohm, Blue, 12" Leads, OEM Spark Plug Boots That Accept Heat Shields, LS, V8, Set

Part Number: SUM-867830

4.75 out of 5 stars ( 36 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Alternators and Generators, Elite Series Alternators, 12 V, 250 amps, Internal Regulator, Serpentine Pulley, Buick, Chevy, GMC, Hummer, Olds, Each

Part Number: MEH-8206250

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Alternator, GM AD244, Internal Regulator, 220 Amp, Chrome, Cadillac, GMC, Each

Part Number: TSN-ES1024C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Spark Plug Wire Set, 7mm. Diameter, Spiral Core, Black, Chevy, Cadillac, GMC, Hummer, Set

Part Number: ADO-9748HH

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Starter, OEM-Style, High-Torque, Chrome, Buick, Cadillac, Chevy, Each

Part Number: PWM-13631

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Saturn, Each

Part Number: DNP-234-4668

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Ignition Coil, Blaster OEM Replacement, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, 4.8, 5.3, 6.0L, Set of 8

Part Number: MSD-82638

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Spark Plug, G-Power Platinum, Tapered Seat, 14mm Thread, .691 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3403

4.87 out of 5 stars ( 23 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Computer Programmer, Evolution CTS3, Cadillac, Chevy, Buick, GMC, Pontiac, Gas, Each

Part Number: EGE-85450-250

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Oxygen Sensor, Thread-in, Heated, Each

Part Number: ADO-213-1702

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Wire, Spiro-Pro, 8mm, Black, Coil Pack, 135 Degree Boot End, 11.00 in. Length, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Set of 8

Part Number: TAY-76046

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Ignition Coil, Coil Pack Style, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: ADO-19418992

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Ignition Coil, Street Fire, Coil Pack, Black, Buick, Chevy, GMC, Set of 8

Part Number: MSD-55108

4.33 out of 5 stars ( 30 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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MAP Sensors, GM Genuine Parts Manifold Absolute Pressure Sensors, GM Style, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Saturn, Each

Part Number: ADO-19418808

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Spark Plug, E3, Tapered Seat, 14mm Thread, 0.708 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-54

4.59 out of 5 stars ( 98 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Spark Plug, E3, Gasket Seat, 14mm Thread, 0.750 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-48

4.62 out of 5 stars ( 84 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Computer Programmer, GM Flashcal Tuner, Chevy, GMC, Each

Part Number: SRC-2545

4.24 out of 5 stars ( 17 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Knock Sensor, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: DFP-AS10017

4.25 out of 5 stars ( 28 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

• $15 Summit Bucks

Starter Bolts, Steel, Zinc, Long Bolts, Chevrolet, LS, Pair

Part Number: MRG-60941MRG

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Ignition Coils, MOD Series, Cadillac, Chevy, GMC, Hummer, Set of 8

Part Number: NGK-49473

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Ignition Coil, MSC II Coil Pack, D580 Style, Epoxy, Square, Red, GM LS1/LS6, Set of 8

Part Number: MSD-82858

4.0 out of 5 stars ( 13 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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