2003 CHEVROLET SILVERADO 2500 HD ACDelco Parts and Accessories

Accessory Belt Tensioner, Serpentine, 6-rib, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: ADO-12609719

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Vehicle Speed Sensor, Buick, Chevrolet, GMC, Each

Part Number: ADO-24203876

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Horn, OE Replacement, Low Tone, 12 V, Buick, Cadillac, Chevy, GMC, Kit

Part Number: ADO-84594590

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Automatic Transmission Filter, 4L80E, Chevy, GMC, Each

Part Number: ADO-24210956

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Power Steering Pulley, Serpentine, 6-Groove, Steel, Black, GM, Each

Part Number: ADO-19421487

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Automatic Transmission Dipstick Tube, Chevy, GMC, Each

Part Number: ADO-15832205

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Thermostat, Mechanical, OE, 180 degrees, Standard-flow, Steel, Chevy, GMC, 6.6L Diesel, Each

Part Number: ADO-131-131

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Idler Pulleys, Professional, Serpentine, Steel, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Workhorse, Workhorse Custom Chassis, Each

Part Number: ADO-36299

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Automatic Transmission Filter, Chevy, GMC, Hummer, Allison 1000, Each

Part Number: ADO-TF950

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fluid Coolers, Replacement Fuel Coolers, Stock Inlet/Outlet Size, Chevrolet, GMC, Each

Part Number: ADO-10371405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• 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: Monday 2/23/2026 if shipped by air

Vacuum Line, Fuel Pressure Regulator Position, Rubber, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: ADO-17113556

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Automatic Transmission Shifter Cable, GM Genuine Part, Black Jacket, Ball Socket Ends, 135.710 in. Length, Chevrolet, GMC, Each

Part Number: ADO-19434388

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

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

Part Number: ADO-19418992

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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: Monday 2/23/2026 if shipped by air

Fuel Pressure Regulator, Stock Style, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Each

Part Number: ADO-217-3073

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Lifter, Hydraulic Roller, Chevy, GMC, Each

Part Number: ADO-12721203

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Rear Main Seal Cover Gasket, Rubber/Aluminum, Chevy, 4.8L, 5.3L, 5.7L, 6.0L, Each

Part Number: ADO-12639249

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Brake Rotor, Original Equipment, Vented, Solid Surface, Cast Iron, Natural, Each

Part Number: ADO-177-1039

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Ignition Coil Wiring Harness, Each

Part Number: ADO-356G

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Timing Cover Seal, PTFE/Steel, Chevy, Big Block, Gen VII, Each

Part Number: ADO-296-14

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Oil Galley Plug, Chevy, Small Block Gen III, Each

Part Number: ADO-12573460

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Mass Airflow Sensor, Electronics, Chevy, GMC, Each

Part Number: ADO-213-4115

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Blower Motors, Plastic, Black, Wheel, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-15-81646

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

• Free Shipping

Sensor, Coolant Temperature, Each

Part Number: ADO-15-51107

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air