2003 CHEVROLET SILVERADO-2500-HD ACDelco Parts and Accessories

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 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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

Part Number: ADO-12633906

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

Knock Sensor, Cadillac, Chevy, GMC, Each

Part Number: ADO-213-3521

4.67 out of 5 stars ( 85 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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

Part Number: ADO-252-845

4.78 out of 5 stars ( 121 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

Switch, Oil Pressure Indicator, Steel/Plastic, Black/Natural, Each

Part Number: ADO-12677836

4.5 out of 5 stars ( 18 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Timing Cover Seal, Chevy, Small Block LS, Each

Part Number: ADO-296-02

4.81 out of 5 stars ( 27 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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 ( 5 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

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 11/10/2025

• $20.00 Summit Bucks

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 11/10/2025

• $20.00 Summit Bucks

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

Part Number: ADO-12612350

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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

Part Number: ADO-41-962

4.82 out of 5 stars ( 67 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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 ( 6 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Sensor, Coolant Temperature, Brass, Natural, Each

Part Number: ADO-213-4514

4.93 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

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

Part Number: ADO-10-9244

5.0 out of 5 stars ( 5 )

Cannot be shipped Internationally

• Restricted
• $20.00 Summit Bucks

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 11/10/2025

• $20.00 Summit Bucks

Harmonic Balancer, 7.710 in. Diameter, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, Each

Part Number: ADO-19300488

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

Map Sensor, 2 Bar, Buick, Cadillac, Chevy, GMC, Pontiac, Saturn, Each

Part Number: ADO-19418810

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Automatic Transmission Pan, Steel, Natural, Chevy, GMC, Each

Part Number: ADO-24204278

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

Spark Plug, RAPIDFIRE Performance Platinum, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-6

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Fuel Pump, Electric, Sending Unit, Chevy, GMC, Each

Part Number: ADO-MU1613

4.91 out of 5 stars ( 54 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

Harmonic Balancer Bolt, Steel, Flanged Hex, Coarse Thread, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-12557840

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Rocker Arms, GM Genuine Parts, Roller Fulcrum, Pedestal, 1.7 Ratio, Steel, Exhaust Side, Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saab, Each

Part Number: ADO-12681275

Not Yet Reviewed

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Camshaft Thrust Plates, GM Genuine Parts, Solid Type, Steel, Chevrolet, Each

Part Number: ADO-12589016

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/10/2025

• $20.00 Summit Bucks

Water Pump, Mechanical, Standard-volume, Clockwise Rotation, Aluminum, Natural, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: ADO-252-994

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/10/2025

• Free Shipping
• $20.00 Summit Bucks

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 11/10/2025

• $20.00 Summit Bucks