2003 ACDelco Engines & Components

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

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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

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 2/16/2026 if shipped by air

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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 ( 2 )

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

Lifters, GM Genuine Parts, Hydraulic Roller Style, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: ADO-12698945

5.0 out of 5 stars ( 1 )

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

Valve Cover Assembly, Left side, New Design, 09' Prior

Part Number: ADO-12570427

5.0 out of 5 stars ( 1 )

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

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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

5.0 out of 5 stars ( 1 )

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

Oil Filter, Gold Series, Canister Style, 13/16 in.-16 UNF Threads, 4.500 in. Tall, 3.77 in. Dia., Am General, Checker, GM, Hummer, Studebaker, Each

Part Number: ADO-PF1218

4.52 out of 5 stars ( 60 )

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

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

Part Number: ADO-12589016

3.25 out of 5 stars ( 4 )

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

Drive Belt Tensioner Assembly

Part Number: ADO-38158

5.0 out of 5 stars ( 2 )

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

Lifters, GM Genuine Parts, Hydraulic Roller, Chevrolet, GMC, Each

Part Number: ADO-12722012

Not Yet Reviewed

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

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 2/16/2026 if shipped by air

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

Part Number: ADO-12669569

5.0 out of 5 stars ( 3 )

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

Drive Belt Tensioner Assembly

Part Number: ADO-38194

5.0 out of 5 stars ( 1 )

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

Accessory Belt Tensioner, Smooth Pulley, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Each

Part Number: ADO-12580196

4.67 out of 5 stars ( 3 )

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

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 2/16/2026 if shipped by air

Oil Filter, Canister, Checker, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-PF454

4.46 out of 5 stars ( 26 )

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

Oil Pump Pickup, Engine Oil Pump Pickup Tube and Screen, Screen ASM Oil Pump Pickup with Suction Tube, 5.7L/6.2L, Each

Part Number: ADO-12624497

Not Yet Reviewed

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

Harmonic Balancer, Chevy, 5.7L, Each

Part Number: ADO-12560115

5.0 out of 5 stars ( 2 )

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

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Alternator Brackets, and Power Steering Pump, OEM-style, Aluminum, Natural, Chevrolet, Each

Part Number: ADO-12578068

5.0 out of 5 stars ( 1 )

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

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Bolt, GM Genuine Parts Replacement Bolt, Hex Head Flange, M8 x 1.25, 0.900 in. Underhead Length, Grade 10.9, Steel, Gray, Each

Part Number: ADO-12556127

3.5 out of 5 stars ( 2 )

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