2003 CADILLAC ACDelco Parts and Accessories

Differential, GM 8.5/8.625 in., Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Rear, Each

Part Number: ADO-84554713

5.0 out of 5 stars ( 2 )

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

• Free Shipping

Radiator, Exact Fit, OE, Aluminum/Plastic, Natural, Crossflow, Each

Part Number: ADO-21650

5.0 out of 5 stars ( 4 )

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

• Free Shipping

Windage Trays, GM Genuine Parts, Louvered, Rear Sump, Steel, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-12611129

Not Yet Reviewed

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

Drive Belt Tensioner Assembly

Part Number: ADO-38158

5.0 out of 5 stars ( 2 )

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

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

Connecting Rods, GM Genuine Parts, I-beam Style, Steel, 6.098 in. Length Center To Center, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: ADO-12649190

Not Yet Reviewed

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

• Free Shipping

Water Neck, O-ring Sealing Style, Aluminum, Natural, 186 degree Thermostat, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-15-11057

4.37 out of 5 stars ( 19 )

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

Water Pump, Mechanical, Standard-volume, Aluminum, Natural, Counterclockwise Rotation, Cadillac, Chevy, GMC, Hummer

Part Number: ADO-12703898

4.43 out of 5 stars ( 7 )

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

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Water Pump Gasket, GM Genuine Part, Rubber/Steel Core, Requires 2 Gaskets Per Engine, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-251-663

4.79 out of 5 stars ( 19 )

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

Accessory Belts, V-Ribbed Serpentine Belts, 6-rib, 0.807 in. Width, 93.58 in. Length, Buick, Cadillac, Chevrolet, GMC, Mercedes-Benz, Mercury, Each

Part Number: ADO-K060930HD

5.0 out of 5 stars ( 2 )

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

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

Oil Pump Pickup, Engine Oil Pump Pickup Tube and Screen, Screen ASM Oil Pump Pickup with Suction Tube, Each

Part Number: ADO-12563961

5.0 out of 5 stars ( 3 )

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

Fan Clutch, Engine Cooling, Standard Thermal Style, Counterclockwise, Each

Part Number: ADO-15-4694

4.92 out of 5 stars ( 12 )

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

Fuel Filters, GM Genuine Parts, Stock Style, Element, Black Steel Housing, 5.75 in. Overall Length, Buick, Cadillac, Chevrolet, GMC, Land Rover, Each

Part Number: ADO-GF952

3.0 out of 5 stars ( 2 )

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

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

Intake Manifold Gaskets, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Pair

Part Number: ADO-89060413

5.0 out of 5 stars ( 6 )

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

Power Steering Pumps, GM Genuine Parts, Stock Model, Standard-volume, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-19420676

Not Yet Reviewed

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

• Free Shipping

Transmission Fluid, Type III-H Automatic Transmission Fluid, 1 gal., Each

Part Number: ADO-10-9241

Not Yet Reviewed

Cannot be shipped Internationally if shipped by air

• Restricted

Oil Filter, Canister, AMC, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Isuzu, Jeep, Saab, Each

Part Number: ADO-PF46E

4.73 out of 5 stars ( 11 )

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

Alternator, Delco Remy, 12/14/16 V, 105 amps, Internal Regulator, Serpentine Pulley, Cadillac, Chevy, GMC

Part Number: ADO-335-1086

4.32 out of 5 stars ( 19 )

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

• Free Shipping

Idler Pulleys, GM OE, Serpentine, Steel, Black, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: ADO-12669569

4.2 out of 5 stars ( 5 )

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

Wheel Bearing and Hub Assembly, GM OE, Steel, Natural, Front, Cadillac, Chevy, GMC, Each

Part Number: ADO-84856655

5.0 out of 5 stars ( 3 )

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

• Free Shipping

Water Neck, Aluminum, Natural, Each

Part Number: ADO-15-10412

4.5 out of 5 stars ( 4 )

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

Spark Plug Boot Protector, Heat Shield, 500 degrees F, Snap-on, Buick, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: ADO-8006

5.0 out of 5 stars ( 6 )

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