GMC SIERRA 3500 HD ACDelco Parts and Accessories

Valve Cover Gasket, ACM Rubber, Chevy, Small Block Gen V, Each

Part Number: ADO-12619787

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Oil Filter, Canister, Chevy, GMC, Hummer, 6.6L Diesel, Each

Part Number: ADO-PF2232

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Torque Converters, New, Stock, 12.700 in. Diameter, Chevrolet, GMC, Each

Part Number: ADO-24284077

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

• Core Charge $100.00
• Free Shipping

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 4/20/2026 if shipped by air

Transmission Pan Gasket, GM Genuine Part, Rubber, Chevrolet, GMC, Each

Part Number: ADO-24297922

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Batteries, Gold Automotive AGM Battery, Starting, 12 V, 850 Cold Cranking Amps, Top Terminals, BCI 94R Group, Audi, BMW, Chevy, Dodge, Ford, GMC, Each

Part Number: ADO-94RAGMHR

Not Yet Reviewed

Cannot be shipped Internationally if shipped by air

• Oversize $8.99
• Restricted

Electrical Switches, ACDelco Replacement Black Switches, Atmosphere Auxiliary Multi-Function Switch, Brown Cover, Chevy, GMC, Sold as a Kit

Part Number: ADO-85673885

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

• Free Shipping

Valve Covers, Replacement, Stock, Baffled, Cast Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-12582224

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Valve Covers, Replacement, Stock, Cast Aluminum, Natural, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saab, Each

Part Number: ADO-12642655

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Alternators and Generators, Alternators, 12 V, 150 amps, Internal Regulator, Serpentine Pulley, Chevy, GMC, Each

Part Number: ADO-84143543

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

• Free Shipping

Cabin Air Filter Elements, Professional Cabin Air Filters, Carbon, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-CF1184C

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 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 4/20/2026 if shipped by air

Computer, GM OE Engine Control Module, Cadillac, Chevy, GMC, Each

Part Number: ADO-12633238

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

• Core Charge $25.00
• Free Shipping

Power Steering Fluid, 16 oz., Each

Part Number: ADO-10-5074

5.0 out of 5 stars ( 3 )

Cannot be shipped Internationally if shipped by air

• Restricted

Cabin Air Filter Elements, GM OE Cabin Air Filters, Particulate, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-CF185

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Thermostat, Mechanical, OE, 185 degrees, Standard-flow, Each

Part Number: ADO-131-163

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Timing Gears, Camshaft Sprockets, OE Replacement, 44-Tooth, 5.354 in. O.D., Steel, GM, LS, Each

Part Number: ADO-12576407

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Bracket, Power Steering Pump, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-12554030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Fuel Injector, GM Genuine Part, OEM Replacement, Chevrolet, GMC, Each

Part Number: ADO-12738849

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 4/20/2026 if shipped by air

Spark Plug Wire Sets, Assembled, Spiral Core, 7.00mm Diameter, Red Wire, Buick, Cadillac, Chevrolet, Pontiac, Hummer, GMC, Saab, For GM LS, Set

Part Number: ADO-19417612

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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

Part Number: ADO-12637617

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 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 4/20/2026 if shipped by air

Spark Plug Wire, Single, Assembled, 7mm, Spiral Core, Gray, 9.840 in. Length, Each

Part Number: ADO-12716289

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Wiring Pigtails, Replacement, Female Wire Connector Type, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-PT2974

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air