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

MechMan High-Output Alternators 8206240

Alternator, 240 amps, 12 V, Internal Regulator, Serpentine, Buick, Chevy, Oldsmobile, Each

Part Number: MEH-8206240

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

JET Dynamic Spectrum Tuners 14005

JET Dynamic Spectrum Tuners 14005

Computer Tuner, Cadillac, Chevy, GMC/Pontiac, Passenger Car/Pickup/SUV, 4.8/5.0/5.3/5.7/6.0/7.4/8.1L, Each

Part Number: JET-14005

3.55 out of 5 stars ( 20 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco GM Genuine Parts Engine Coolant Temperature Sensors 15326386

Sensor, Coolant Temperature, 3/8 in. NPT Thread, Brass, Natural, Each

Part Number: ADO-213-928

4.69 out of 5 stars ( 32 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Fox Racing Shox 2.0 Performance Series Reservoir Smooth Body Shocks 980-24-956

Shock, 2.0 Performance Series Reservoir, Smooth Body, Rear, 12.1 in. Travel, 3.5-6.5 in. Lift, Chevrolet, GMC, Hummer H2

Part Number: FRS-980-24-956

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

VEGE Remanufactured Long Block Crate Engines VCTF4WD

Crate Engine, Remanufactured, Long Block, Assembled, GM, 6.0L, 4WD, Each

Part Number: VRE-VCTF4WD

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ATK High Performance Chevy LQ4 6.0L 460 HP Long Block Crate Engines HP93

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Monday 12/29/2025

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Timken Pinion Bearings M802048

Bearing, Pinion, 1.625 in. Inside Diameter, Each

Part Number: TMK-M802048

4.67 out of 5 stars ( 30 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Chevrolet Performance Main Cap Fasteners 12560273

Main Bolts, Outer Bolts, With Windage Tray, Chevy, LS, Each

Part Number: NAL-12560273

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Bilstein B6 4600 Series Shocks and Struts 24-060820

Shock, 4600 Series, Monotube, Chevy, GMC, Pickup, Rear, Each

Part Number: BSN-24-060820

4.83 out of 5 stars ( 18 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Proform Harmonic Balancer Puller and Installer Tools 66518

Harmonic Balancer Installation, Puller Tool, LS Engines, Kit

Part Number: PRO-66518

4.5 out of 5 stars ( 18 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Timken Timing Cover Seals 100470

Timing Cover Seal, Each

Part Number: TMK-100470

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Pacific Performance Engineering Replacement High-Flow Up Pipes 116120000

Exhaust Pipes, Turbo Up Pipes, Stainless Steel, Natural, 2.00 in. Diameter, Chevy, GMC, 6.6L Diesel, Kit

Part Number: PPE-116120000

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco Mechanical Water Pumps 12703898

Water Pump, Mechanical, Standard-volume, Aluminum, Natural, Counterclockwise Rotation, Cadillac, Chevy, GMC, Hummer

Part Number: ADO-12703898

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

King XP-Series Main Bearings MB5013XP 010

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.010 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP010

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

10w30 Mobil Super Synthetic Blend Motor Oil 124406

Engine Oil, Super, Semi-Synthetic, 10W30, 5 qt., Each

Part Number: MOB-124406-1

5.0 out of 5 stars ( 5 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Remflex Exhaust Header Gasket Sets 2049

Exhaust Gaskets, Header and Manifold Gaskets, Round Port, Graphite, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, LS, Pair

Part Number: RFL-2049

4.67 out of 5 stars ( 18 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco GM Genuine Parts Engine Coolant Temperature Sensors 12608814

Sensor, Coolant Temperature, Brass, Natural, Chevy, Pontiac, Each

Part Number: ADO-213-4333

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Summit Racing™ Positraction 30 Spline Differential Carriers GM 10.5 Inch (14-bolt) SUM-730987

Differential Carrier, Positraction, 30-spline, Steel, Rear, Chevy, GMC, GM 10.5 in. 14-bolt, Each

Part Number: SUM-730987

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Summit Racing™ Step Bars SUM-710102-B

Step Bars, Steel, Black Powdercoated, Round, 3 in. Diameter, Extended Cab, Chevy, GMC, Pair

Part Number: SUM-710102-B

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Fox Racing Shox 2.0 Performance Series IFP Smooth Body Shocks 980-24-664

Shocks and Struts, 2.0 Performance Series IFP Smooth Body Shocks, Stock/Lifted Ride Height, Eyelet Mounts, Rear, Chevrolet, GMC, Hummer, Each

Part Number: FRS-980-24-664

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Chevrolet Performance Flywheel Bolts 11569956

Flexplate Bolt, Steel, 11mm x 1.5, 0.800 in. UHL, Chevy, Gen III/IV, LS Series, Automatic Transmission only, Each

Part Number: NAL-11569956

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Centerforce Dual Friction Clutch Kits DF997997

Clutch Kit, Dual Friction, 1 1/8 in. Diameter Shaft, 10-Spline, 12 in. Diameter Disc, Chevy, GMC, Kit

Part Number: CTF-DF997997

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

MSD 8.5mm Super Conductor Spark Plug Wire Sets 39849

Spark Plug Wires, Super Conductor, Spiral Core, 8.5mm, Red, Stock Boots, Chevy, GMC, 8.1L, V8, Set

Part Number: MSD-39849

4.54 out of 5 stars ( 13 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Four Seasons Fan Mount Pull Tie Kits 53014

Electric Fan Mounting Brackets, Nylon, Black, Kit

Part Number: FSS-53014

4.73 out of 5 stars ( 52 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Clevite Camshaft Bearings SH-1814S

Cam Bearings, B-1, Chevy, 4.8, 5.3, 5.7, 6.0L, 1st Design, Set

Part Number: CLE-SH1814S

4.0 out of 5 stars ( 16 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Alloy USA Mini Spools GM14/MSPL

Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each

Part Number: ALY-GM14MSPL

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

2003 CHEVROLET SILVERADO-2500-HD Parts and Accessories