2003 CHEVROLET SILVERADO 2500 HD - In Stock Filter Options - Vendor In Stock Filter Options Parts & Accessories

ICT Billet Wiring Harness Extensions WECTS30-36

Wiring Connectors, Coolant Temperature Sensor Extension, 36 in., 2 Pin, Each

Part Number: ICB-WECTS30-36

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Pacific Performance Engineering Race Fuel Pressure Relief Valves 113072800

Fuel Rail Fitting, Pressure Release Valve, Duramax Diesel, Chevy, GMC, LB7, Each

Part Number: PPE-113072800

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

MotoRad Spec-R Racing Thermostats MRD104

Thermostat, Spec-R, with Seal, 160 Degrees F, Steel/Copper, Universal, Each

Part Number: SNN-MRD104

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ACDelco Gold Molded Radiator Coolant Hoses 88920361

Hoses, Radiator, Professional Molded Radiator Coolant Hoses, Reinforced Rubber, Black, 47.800 in. Length, Cadillac, Chevy, GMC, International, Each

Part Number: ADO-26390X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ACDelco Gold Suspension Stabilizer Bar Link Kits 19460337

Sway Bar End Links, Gold Suspension Stabilizer Bar Link Kits, Thermoplastic Bushings, Blue, Cadillac, Chevy, Ford, GMC, Hummer, Lincoln, Mercury, Kit

Part Number: ADO-45G20642

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Summit Racing™ Transmission Filter Kits SUM-G19014F

Transmission Filter, Direct Fit, Chevy, GMC, Allison 1000, Sump Filter. Kit

Part Number: SUM-G19014F

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dorman Headlight Switches 901-142

Headlight Switch, OEM Replacement, Chevy, GMC, Each

Part Number: RNB-901-142

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186504

Harness Adapter, Nexus Rebel LS, Cable Operated, TPS, IAC, Chevrolet, LS, Each

Part Number: HTH-HT-186504

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ACDelco V-Ribbed Serpentine Belts 88932529

Serpentine Belt, V-ribbed, 37.90 in. Length, 0.56 in.. Width, 4 Rib, Each

Part Number: ADO-4K378

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fel-Pro Head Gaskets 26169 PT

Head Gasket, PermaTorque, 4.330 in. Bore, Chevy, GMC, 8.1L, Right Side Cylinder Head, Each

Part Number: FEL-26169PT

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

MotoRad Spec-R Integrated Thermostat Housings MRD102

Water Neck, Spec-R, Aluminum Natural, Chevy, Cadillac, GMC, Pontiac, Hummer, Each

Part Number: SNN-MRD102

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

McGard Wheel Locks 24019

Lug Nuts, Conical Seat, 14mm x 1.50 RH, Open End, Locking, Zinc Plated Steel, Set of 4

Part Number: MCG-24019

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

5w40 Mobil 1 Turbo Diesel Truck Motor Oil 122253

Engine Oil, Turbo Diesel Truck, Synthetic, 5W40, 1 qt., Set of 6

Part Number: MOB-122253

5.0 out of 5 stars ( 2 )

Cannot be shipped Internationally if shipped by air

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Cannot be shipped Internationally if shipped by air

ACDelco Replacement Wiring Harness Connectors 88988963

Wiring Harness Connector, Replacement, OEM Type, Male, 2-pin, Black, Buick, Cadillac, Chevy, GMC, Pontiac, Saturn, Suzuki, Each

Part Number: ADO-PT2183

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Sherman Cab Corner Repair Panels SHE901-55L

Cab Corner Repair Panel, Steel, EDP Coated, Chevy, GMC, Extended Cab, Driver Side, Each

Part Number: SHI-901-55L

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Key Parts Fuel Doors 0856-029

Fuel Door, Steel, Galvanized, Chevy, GMC, Pickup, Each

Part Number: KPT-0856-029

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Dayco Molded Radiator Hoses 71990

Radiator Hose, Molded, Rubber, Black, Each

Part Number: DAC-71990

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

King SI-Series Main Bearings MB5293SI 020

Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5

Part Number: KGB-MB5293SI020

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Cloyes Timing Camshaft Sprockets S878T

Timing Gear, Camshaft Sprocket, 44-tooth, Steel, Chevy, Each

Part Number: CLO-S878T

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ATP Automatic Transmission Filter Kits B-174

Transmission Filter, Direct-Fit, Kit

Part Number: ATP-B174

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

RAM Clutch Billet Steel Alignment Tools 03-001

Clutch Alignment Tool, 1.125 in. - 10-spline, Billet Steel, Natural, Designed for GM Applications, Each

Part Number: RAM-03-001

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

ICT Billet Wiring Harness Extensions WEMAP30-24

Wire Extension 24" LS Gen 3 MAP Manifold Absolute Pressure Sensor Connector

Part Number: ICB-WEMAP30-24

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fleece Performance Fuel Primer Sealing Kits FPE-GM-FFPD-0116

Fuel Pump Components, Sealing Kit, Fuel Primer Bulb, Billet Aluminum Cap, Black, 1/8 in. NPT Port, Hardware, Chevy, GMC, 6.6L, Duramax, Each

Part Number: FLE-S0410

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Continental Replacement Tensioner Pulleys 49001

Idler Pulley, Smooth, Black Powdercoated, Each

Part Number: CEL-49001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

Fine Lines Brake Line Kits TRA0003SS

Brake Lines, Stainless Steel, Natural, Chevrolet, GMC, Single Rear Wheel, 6.6L, 8.1L, Pair

Part Number: FNL-TRA0003SS

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

2003 CHEVROLET SILVERADO 2500 HD Parts and Accessories