2003 GMC SIERRA 1500 Ignitions & Electrical

Alternator, Street, 180 Amps, Natural Finish, Serpentine, Chevy, GMC, Hummer, Isuzu, Each

Part Number: PWM-8237

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• Free Shipping

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

Part Number: ADO-213-3867

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Spark Plug, Iridium, Iridium, 14mm Thread, 0.689 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: CPN-9405

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

• $25 Summit Bucks

240 Amp H.O. Racing Alternator

Part Number: MEH-8237240B

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

Spark Plug Wires, Street / Strip Series, 8mm, 300 Ohm, Blue, 9" Leads, OEM Spark Plug Boots That Accept Heat Shields, LS, V8, Set

Part Number: SUM-867828

4.14 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

Knock Sensor, Replacement, Wiring Harness, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Kit

Part Number: SMP-KS116K

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Alternators and Generators, Elite Series Cast Alternators, 12 V, 320 amps, Serpentine, 4-pin Oval Plug, Buick, Chevy, GMC, Hummer, Olds, Pontiac, Each

Part Number: MEH-8206320

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Distributor, Replacement, Computer-controlled Compatible, Female/Socket, Magnetic Trigger, Crab Cap, Chevrolet, GMC, Oldsmobile, 4.3L, Each

Part Number: DFP-CZ20007

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping
• $15 Summit Bucks

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

Part Number: SUM-850501-1B

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Starter; High Torque; 168 Tooth Flywheel; Staggered Pad Mount; Chrome

Part Number: PWM-13510

3.67 out of 5 stars ( 3 )

Estimated Ship Date: May 8, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Ignition Coils, Coil Pack, Black/Yellow, Epoxy, Buick, Chevy, GMC, Hummer, Pontiac, LS2, LS3, LS7, Set of 8

Part Number: ACC-140043-8

4.35 out of 5 stars ( 20 )

Estimated Ship Date: Tomorrow

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Ignition Coil, Remote Super Coil, M36 E-core, Square, Epoxy, Black/Yellow, 48,000 V, GM, Isuzu, Each

Part Number: ACC-140024ACC

4.42 out of 5 stars ( 31 )

Estimated Ship Date: Tomorrow

Crankshaft Position Sensor, Cadillac, Chevy, GMC, Isuzu, Oldsmobile, Each

Part Number: ADO-213-4761

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Alternator, GM AD230 Case Style, 12 V, 105 amps, Internal Regulator, Serpentine Pulley, Cadillac, Chevy, GMC, Each

Part Number: ADO-334-2491A

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Core Charge $30.00

Computer Programmer, Trinity 2 EX Performance, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: DBL-9200

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Coolant Temperature Sensor, OEM, Brass, Natural, Buick, Cadillac, Chevy, GMC, Pontiac, Saab, Saturn, Each

Part Number: DFP-TS10076

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

• $15 Summit Bucks

Spark Plug Wire Retainer, Plastic, Black, Each

Part Number: NAL-12132229

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Oxygen Sensor, 4-wire, Thread-in, Cadillac, Chevy, GMC, Hummer, Each

Part Number: ADO-213-1161

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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

Part Number: ETP-E3-62

4.27 out of 5 stars ( 48 )

Estimated Ship Date: Tomorrow

Wiring Connector, GM 19368859, Cadillac, CTS, Gray Plastic, Each

Part Number: ADO-PT3846

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Monitor, Trinity 2 MX Performance, Monitor Only, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Hummer, Isuzu, Jeep, Mazda, Pontiac, Ram, Each

Part Number: DBL-9050

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Spark Plug Wire Sets, Street Fire, Assembled, Coil Pack Terminal Ends, Spiral Core, Black, 8.00mm Diameter, Chevrolet, GMC, 4.8L, 5.3L, 6.0L, Set

Part Number: MSD-5574

4.57 out of 5 stars ( 23 )

Estimated Ship Date: Tomorrow

Alternator, Internal Regulator, 12 V, 145 amps, Natural Finish, Serpentine Pulley, Each

Part Number: SUM-810347

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

• Free Shipping

Computer Programmer, Gas Evolution CS2, Cadillac, Chevy, Dodge, Ford, GMC, Hummer, Isuzu, Lincoln, Each

Part Number: EGE-85350

3.93 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

• Free Shipping

Spark Plug, Resistor, Iridium Tip, Copper Core, 14mm Thread Size, 0.708 in. Reach, Tapered Seat, Each

Part Number: ATL-XP5245

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow