2003 GMC SIERRA 1500 Ignitions & Electrical

Wire, Spiro-Pro, 8mm, Blue, Coil Pack, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Set of 8

Part Number: TAY-76646

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

SPARK PLUG WIRE SETS, PerTronix 808224 Flame-Thrower Spark Plug Wires 8 cyl 8mm 45 Degree Boots Black

Part Number: PNX-808224

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Camshaft Position Sensors, OE Replacement, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Workhorse, Each

Part Number: ADO-213-4664

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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 )

Estimated Ship Date: Tomorrow

• Free Shipping

Alternator, Street, 120 Amps, Natural Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-8247

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Spark Plug, C-Cut Ground Electrode, Tapered Seat, 14mm Thread .708 in. Reach, Projected, Resistor, Set of 4

Part Number: ACC-0526-4

4.95 out of 5 stars ( 20 )

Estimated Ship Date: Tomorrow

Battery Hold Down Clamp, Steel, Black, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-00587

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

Spark Plug Wires, 409 Pro Race, Spiro-Wound, 10.4mm, Black, Straight Boots, Cadillac/Chevy/GMC, 5.3/6.0L, V8

Part Number: TAY-79005

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Spark Plug Wires, 409 Pro Race, Spiro-Wound, 10.4mm, Red, Stock Boots, Chevy, GMC, LS, Set

Part Number: TAY-79205

4.59 out of 5 stars ( 54 )

Estimated Ship Date: Tomorrow

Spark Plug Wires, Race Series, 8.5mm, Black, 50 Ohm, 9" Leads, OEM Spark Plug Boots With Heat Shields Installed, LS, V8, Set

Part Number: SUM-887828WS

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: SMP-PC278T

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Replacement Component, IAC/TPS Mounting Hardware, Stainless, GM LS Engines, Each

Part Number: SUM-921100

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

Throttle Position Sensor, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: DFP-SS10382

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $15 Summit Bucks

Spark Plug Wires, Blue Streak Performance Race, Assembled, Spiral Core, 9mm, Black, Set

Part Number: SMP-10039

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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 22, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Estimated Ship Date: Tomorrow

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

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

• Free Shipping

Camshaft Position Sensor, Replacement, Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Each

Part Number: SMP-PC273K

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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

Distributor Cap, Black, Chevy, GMC, Oldsmobile, V6, Each

Part Number: ADO-D328A

4.33 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

Electrical Switches, Gold Headlight Switches, Rotary, Plastic, Black, Lights Logo, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-19381535

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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

Starter, Delco Style, Standard Rotation, Black/Natural, Chevy, GMC, Isuzu, Oldsmobile, Each

Part Number: ADO-336-1925A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Core Charge $31.00

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