2003 CHEVROLET SILVERADO 2500 HD Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options

ACDelco Drive Belt Tensioners 98094201

Accessory Belt Tensioner, Serpentine, 6-rib, Chevy, GMC, Each

Part Number: ADO-98094201

3.0 out of 5 stars ( 2 )

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ATI Super Damper Diesel Harmonic Balancers ATI917378

Harmonic Balancer, Super Damper Diesel, Internal Balance, Steel, Elastomer, SFI 18.1, Each

Part Number: ATI-917378

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

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ATI Super Damper Diesel Harmonic Balancers ATI917369

5 out of 5 stars ( 2 )

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Pacific Performance Engineering Oil Pan Drain Plugs 114052001

Oil Pan Drain Plug, Magnetic, 14mm x 1.50, Includes Gasket, Chevrolet, GMC, 6.6L Duramax, Each

Part Number: PPE-114052001

4.0 out of 5 stars ( 1 )

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Summit Racing™ Valve Cover Oil Fill Caps SUM-380191

Summit Racing™ Valve Cover Oil Fill Caps SUM-380191

Engine Oil Cap, Billet Aluminum, Summit Racing Equipment® Logo, Black Anodized, Chevy, LS Engines, Each

Part Number: SUM-380191

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Dorman Idler Pulleys 419-602

Idler Pulley, Serpentine, Steel, Black, Each

Part Number: RNB-419-602

4.43 out of 5 stars ( 7 )

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Sealed Power A-Series Rod Bearings 8-2555A 1

Rod Bearings, 0.001 in. Crankshaft Undersize, Bi Metal, AM General, Avanti, Checker, Chevy, Pontiac, Hummer, V8, Set of 8

Part Number: SLP-8-2555A1

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ACDelco Thrust Washers 89017572

Thrust Washer Bearings, Performance Usage, Stock Size, Buick, Chevrolet, GMC, Hummer, Pontiac, Pair

Part Number: ADO-89017572

5.0 out of 5 stars ( 1 )

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King SI-Series Rod Bearings CR 807SI 040

Rod Bearings, .040 in Crankshaft Undersize, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807SI040

4.0 out of 5 stars ( 1 )

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Cloyes Replacement Timing Chains 9-302

Timing Chain, Single Roller, Replacement, Chevrolet, Small Block, LS, Each

Part Number: CLO-9-302

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

ACDelco Gold Idler Pulleys 19190145

Idler Pulley, Serpentine, Steel, Black, Chevy, Buick, Acura, AM General, Chrysler, Dodge, Ford, Gmc, Honda™, Hummer, Isuzu,Jaguar, Jeep, Each

Part Number: ADO-15-20676

4.2 out of 5 stars ( 5 )

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Hastings Premium Ductile Ring Sets 2D4845

Piston Rings, Gas Nitrided, 4.055 in. Bore, 3.0mm, 2.0mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2D4845

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Hayden Thermostatic Sandwich Oil Filter Adapters 225

Oil Filter Adapter, Sandwich, 3/8 in. NPTF, 13/16-16 in. Nipple Thread Size, Aluminum, Natural, Each

Part Number: HDA-225

4.33 out of 5 stars ( 3 )

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VEGE Remanufactured Cylinder Heads 2CW2L

Cylinder Heads, Remanufactured, Assembled, Cast Iron, Natural, Left, Chevy, GMC, Workhorse, Workhorse Custom Chassis, 8.1L, Each

Part Number: VRE-2CW2L

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-901BR

Engine Expansion, Plug Kit, Stock Replacement, Cylinder Head, 1.250 in. Diameter, Brass, Kit

Part Number: MEL-MPE-901BR

5.0 out of 5 stars ( 2 )

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Hastings Premium Ductile Ring Sets 2M4860S020

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4860S020

Not Yet Reviewed

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PRW Main Cap Stud Kits 1000321

Main Studs, SCM-4140 Alloy Steel, 12-Point, Chevy, 6.6L, Duramax Diesel, LB7, LLY, Kit

Part Number: PQX-1000321

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

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Summit Racing™ Extreme Duty Main Studs SUM-910522

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King HP-Series Rod Bearings CR 807HPN010X

Rod Bearings, HP-Series, .010 in. Narrow, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN010X

5.0 out of 5 stars ( 1 )

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Sealed Power Oil Pump Pickups 224-43620

Oil Pickup, Press Fit, Stock Pan Style, for 8.000 in. Oil Pan, Chevy, GMC, V8, Big Block, 396-454, Each

Part Number: SLP-224-43620

4.75 out of 5 stars ( 4 )

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Dorman Expansion Plugs 555-081

Freeze Plugs, Steel, 2.219 in. Closed End Diameter, 2.226 in. Open End Diameter, Chevy, GMC, Set of 10

Part Number: RNB-555-081

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Melling Oil Pump Screen Assemblies 353S

Oil Pickup, Press Fit, Stock Pan Style, 0.594 in. Tube Dia., Chevy, GMC, V8, Big Block, 6.0, 7.0, 7.4, 8.1L, Each

Part Number: MEL-353S

Not Yet Reviewed

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PRW Billet Steel Timing Sets 5034611

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

Part Number: PQX-5034611

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

Dorman Oil Pan Drain Plugs 090-034.1

Oil Drain Plug Pilot Point M12-1.75, Head Size 15Mm

Part Number: RNB-090-034-1

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Continental Accessory Drive Belt Kits K49275A

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

Part Number: CEL-K49275A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

King SI-Series Main Bearings MB5766SI

Main Bearings, SI-Series, Standard Size, Bi-metal, Silicon Aluminum, Chevy, 4.8, 5.3L, Set of 5

Part Number: KGB-MB5766SI

Not Yet Reviewed

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Cloyes Heavy-Duty Timing Sets C-3219

ENGINE TIMING SET

Part Number: CLO-C-3219

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today