2003 CHEVROLET SILVERADO-2500-HD Ignitions & Electrical

Spark Plug Wires, 86 Series, 8mm, 300 Ohm, Red, 9" Leads, OEM Spark Plug Boots That Accept Heat Shields, LS, V8, Set

Part Number: SUM-867828R

4.44 out of 5 stars ( 98 )

Estimated Ship Date: Monday 10/20/2025

Sensor, Engine Oil, Stock Replacement, Steel/Black, Silver, Black, Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Each

Part Number: RNB-926-040

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/20/2025

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 ( 5 )

Estimated Ship Date: Monday 10/20/2025

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

Part Number: DFP-SS11368

2.33 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/20/2025

Sensor, Coolant Temperature, Brass, Natural, Chevy, Pontiac, Each

Part Number: ADO-213-4333

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/20/2025

Sensor, Coolant Temperature, 3/8 in. NPT Thread, Brass, Natural, Each

Part Number: ADO-213-928

4.69 out of 5 stars ( 32 )

Estimated Ship Date: Monday 10/20/2025

Knock Sensor Wiring Harness, OEM Replacement, Buick, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: RNB-917-033

4.85 out of 5 stars ( 26 )

Estimated Ship Date: Monday 10/20/2025

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

Part Number: DFP-AS10017

4.22 out of 5 stars ( 27 )

Estimated Ship Date: Monday 10/20/2025

Vehicle Speed Sensor, Buick, Chevrolet, GMC, Each

Part Number: ADO-24203876

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Ignition Coil, Coil Pack Style, Socket, Square, Black, Cadillac, Chevy, GMC, Hummer, Each

Part Number: DFP-GN10298

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

Ignition Coil, Coil Pack Style, Female/Socket, Square, Each

Part Number: NGK-49081

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Spark Plug Wires, 86 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: Monday 10/20/2025

Spark Plug Wires, StreeThunder, Spiro-Wound, 8mm, Black, Straight Boots, Chevy, Small Block, Set

Part Number: TAY-51044

4.47 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/20/2025

Wiring Harness Connector, Replacement, OEM Type, Male, 2-pin, Black, Buick, Cadillac, Chevy, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-PT2183

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Sensor, Coolant Temperature, Each

Part Number: ADO-15-51107

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/20/2025

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: Monday 10/20/2025

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

Part Number: DNP-234-4651

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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: Monday 10/20/2025

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

Part Number: ADO-PT3846

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/20/2025

Wire Connectors, Female Type, Gray, Buick, Cadillac, Chevrolet, Geo, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Saturn, Suzuki, Each

Part Number: ADO-PT1798

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Wire Connectors, Internal Harness and Viton® O-ring Seal for Allison LCT and GM 4T65-E Transmissions, 20-pin, Gray, 2-piece, Each

Part Number: FLE-S0483

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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

Part Number: SMP-PC278T

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Sensor, Camshaft Position Sensor, Replacement, Each

Part Number: HLN-2CAM0181

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

Starter Bolts, Steel, Zinc, Long and Short Bolts, Chevy, LS, Set of 3

Part Number: MRG-60942MRG

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025