2003 ACDelco Parts and Accessories

Timing Covers, GM Genuine Parts, One-piece, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Each

Part Number: ADO-12633906

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

• Free Shipping

Knock Sensor, Cadillac, Chevy, GMC, Each

Part Number: ADO-213-3521

4.67 out of 5 stars ( 86 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Spark Plug, Iridium Tip, Tapered Seat, 14mm Thread, 0.689 in. Reach, Resistor, Each

Part Number: ADO-41-162

4.75 out of 5 stars ( 36 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Battery, Professional Automotive AGM, Starting, 12 V, 760 Cold Cranking Amps, Top Terminals, BCI 48 Group, Each

Part Number: ADO-48AGM

4.8 out of 5 stars ( 60 )

Cannot be shipped Internationally if shipped by air

• Restricted
• Free Shipping

Water Pump, Mechanical, Aluminum, Serpentine, Natural, Buick, Cadillac, Chevy, GMC, Isuzu, Each

Part Number: ADO-252-845

4.76 out of 5 stars ( 127 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

• Free Shipping

Water Pump, Mechanical, Aluminum, Natural, Chevrolet, Pontiac, Each

Part Number: ADO-252-846

4.7 out of 5 stars ( 69 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

• Free Shipping

Oil Pan Gasket, One-piece, Silicone/Aluminum, Chevy, Small Block LS, Each

Part Number: ADO-12612350

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Valve Lifter Guide, Plastic, Hydraulic Roller, Non-AFM/DOD, Chevrolet, LS, Each

Part Number: ADO-12595365

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Throttle Bodies, GM Genuine Parts Fuel Injection Throttle Bodies, MPI, Cast Aluminum, 75.00mm Venturi Diameter, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-19420713

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

• Free Shipping

Automatic Transmission Fluid, DEXRON VI, Synthetic, 1 qt., Each

Part Number: ADO-10-9394

5.0 out of 5 stars ( 15 )

Cannot be shipped Internationally if shipped by air

• Restricted

Exhaust Gaskets, Exhaust Manifold, Chevy, Pontiac, 5.7L, LS, Each

Part Number: ADO-12617944

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Spark Plug, Professional, Platinum Tip, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-41-962

4.83 out of 5 stars ( 69 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Oil Pressure Sensor, Engine, Steel/Plastic, Black/Natural, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Each

Part Number: ADO-12677836

4.38 out of 5 stars ( 21 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Timing Cover Seal, Chevy, Small Block LS, Each

Part Number: ADO-296-02

4.82 out of 5 stars ( 28 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Rear Main Seal Housing, LS Engine Crankshaft Rear Seal Housing, Aluminum, Includes Seal and Gasket, Will not fit LSX, Each

Part Number: ADO-12639250

4.43 out of 5 stars ( 7 )

Battery, Professional Automotive AGM, Starting, 12 V, 1,080 Cranking Amps, Top Terminals, BCI 49 Group, Each

Part Number: ADO-49AGM

4.7 out of 5 stars ( 47 )

Cannot be shipped Internationally if shipped by air

• Oversize $6.99
• Restricted

FLUID, A/TRANS ACDELCO DEXRON VI, (GAL. TRUCKLOAD)

Part Number: ADO-10-9244

5.0 out of 5 stars ( 6 )

Cannot be shipped Internationally if shipped by air

• Restricted

Sensor, Coolant Temperature, Brass, Natural, Each

Part Number: ADO-213-4514

4.94 out of 5 stars ( 16 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Ignition Coil, Female/Socket, E-core, Square, Black, Cadillac, Chevy, GMC, Hummer, Each

Part Number: ADO-19418993

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Starter, Stock Style, Standard Rotation, Black/Natural, Buick, Cadillac, Chevy, GMC, Isuzu, Saab, Each

Part Number: ADO-337-1119

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

• Free Shipping

Antifreeze, Dex-Cool, Concentrate, 1 Gallon, Each

Part Number: ADO-10-101

4.89 out of 5 stars ( 9 )

Cannot be shipped Internationally if shipped by air

• Restricted

Spark Plug, Professional, Iridium Tip, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-41-993

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Flexplate, OE Replacement, 168-Tooth, 14.00 in. Diameter, Internal Balance, Steel, Chevy, LS, 4L80E/TH350/TH400, Each

Part Number: ADO-19260102

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Power Steering Fluid, 32 oz, Each

Part Number: ADO-10-5073

4.93 out of 5 stars ( 15 )

Cannot be shipped Internationally if shipped by air

• Restricted

Friction Modifier, Limited Slip Lubricant Additive, 4 oz., Each

Part Number: ADO-10-4003

4.97 out of 5 stars ( 67 )

Cannot be shipped Internationally if shipped by air

• Restricted