2003 CHEVROLET SILVERADO-2500-HD Engines & Components

Oil Bypass Valves, Replacement, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: ADO-12684294

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Estimated Ship Date: Today

• $20.00 Summit Bucks

Harmonic Balancer, GM OE, Not SFI-Approved, Chevy, GMC, Each

Part Number: ADO-12552283

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Estimated Ship Date: Today

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• $20.00 Summit Bucks

Rod Bearing, 0.030 in. Crankshaft Undersize, Bi Metal, AM General, Avanti, Buick, Chevy, GMC, Hummer, Oldsmobile, L6, V8

Part Number: SLP-2555A30

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Estimated Ship Date: Today

Oil Pump Driveshaft, Nylon Sleeve, Chevy Big Block, Each

Part Number: MEL-IS-77A

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Rod Bearing, A-Series, 0.020 in. Crankshaft Undersize, Bi Metal, Chevy, GMC, Big Block, Each

Part Number: SLP-3190A20

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Estimated Ship Date: Today

Pistons, Hypereutectic, Flat, 4.310 in. Bore, 2.0mm, 2.0mm, 4.0mm Ring Grooves, Chevy, Big Block, V8, Set of 8

Part Number: UEM-3494HC-060

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Pistons, Hypereutectic, Flat, 4.250 in. Bore, 2.0mm, 2.0mm, 4.0mm Ring Grooves, Chevy, Big Block, V8, Set of 8

Part Number: UEM-3494HC-STD

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Pistons, Hypereutectic, Flat, 4.280 in. Bore, 2.0mm, 2.0mm, 4.0mm Ring Grooves, Chevy, Big Block, V8, Set of 8

Part Number: UEM-3494HC-030

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Rod Bearings, HP-Series, Silicon Aluminum, 0.011 in. Crankshaft Undersize, Large Journal, Chevy, Set of 8

Part Number: KGB-CR807HPND011

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Dualoy Piston GM Duramax 6.6L (V8) 2001-05 Reduced Compression Height 7208D

Part Number: UEM-7218D10MM

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Dualoy Piston GM Duramax 6.6L (V8) 2001-05 Reduced Compression Height 7208D

Part Number: UEM-7218D5MM

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Accessory Drive Belt Kit, 6 Groove Belt, Tensioner, Idler, Kit

Part Number: CEL-K49275A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 24, 2025 if ordered today

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Timing Chain and Gear Set, Roller, Double Roller, Billet Steel Sprockets, Chevy, GMC, Small Block LS, Set

Part Number: PQX-5034622

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Pistons, Hypereutectic, Dish, 102.6mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-1-0MM

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Pistons, Hypereutectic, Dish, 102.1mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-5MM

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Estimated Ship Date: Dec 15, 2025 if ordered today

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TENSIONER

Part Number: NAL-12580196

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Idler Pulley, Serpentine, Steel, Black, for use on Acura®, GM, Ford, Jaguar, Each

Part Number: HDA-5975

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

CHAIN-TIMING IMPORT

Part Number: MEL-4SR50

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Estimated Ship Date: Today

Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Holden, Sold as a Set of 5

Part Number: KGB-MB5398SI

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Estimated Ship Date: Feb 3, 2026 if ordered today

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ENGINE TIMING SET

Part Number: CLO-C-3219

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 24, 2025 if ordered today

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Master Cylinder Reservoir Caps, ACDelco GM Genuine Parts Brake Master Cylinder Caps, Black, Cadillac, Chevrolet, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-22795538

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Estimated Ship Date: Today

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Belt, OE Technology Series, Multi-V, Serpentine, 6-Rib, 136.90 in. Length, Each

Part Number: CEL-4061369

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Estimated Ship Date: Today

Accessory Belts, V-Ribbed Serpentine Belts, 6-rib, 136.50 in. Length, Chevrolet, GMC, Each

Part Number: ADO-K061360HD

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BELT

Part Number: NAL-12637204

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Oil Filter, Extra Guard, Chevy, GMC, Pickup/SUV/Van, Each

Part Number: FRM-PH8873

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Estimated Ship Date: Today