2003 CHEVROLET SILVERADO 1500 HD Parts and Accessories

Exhaust Flange, LS Truck Manifold Steel, 2.5 in. Pipe Diameter, Natural, Pair, GM 5.3 6.0 6.2 LQ4 LQ9 LM7

Part Number: SUM-680500

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Cylinder Head Fasteners, Original Head Bolt Kits, Hex, Steel, Natural, Flat Washers, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Kit

Part Number: MAH-GS33380

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/27/2026 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 4/27/2026 if shipped by air

Rear Main Seal, 1-Piece, PTFE, Each

Part Number: TMK-100085

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Knock Sensor, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: DFP-AS10017

4.25 out of 5 stars ( 28 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

• $15 Summit Bucks on $150 spent*

Cam Bearings, High Performance, Bi Metal, Chill-Cast Micro Babbitt, Chevy, 4.8, 5.3, 5.7, 6.0L, 1st Design, Kit

Part Number: DUR-CHP-10

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Engine Expansion Plugs, Freeze Plugs, Brass/Steel, Avanti, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, Small Block LS, Kit

Part Number: MEL-MPE-900BR-GP

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Exhaust Gaskets, Exhaust Manifold, Exhaust, Chevy, LS, Pair

Part Number: CGT-C5818-030

3.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lug Nuts, Standard Head, Conical Seat, Bulge, Steel, Chrome, 14mm x 1.50 RH Thread Size, Set of 4

Part Number: MCG-64033

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Wiper Blade, ICON, Zinc Dichromate Primer Steel Frame, Black Rubber Blade, 22 in., Each

Part Number: BCH-22A

4.75 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Fluid Cooler, Transmission, Tube, Fin, Natural, 7.5 in. x 12.5 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-403

4.61 out of 5 stars ( 44 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Fluid, Type III-H Automatic Transmission Fluid, 1 gal., Each

Part Number: ADO-10-9241

Not Yet Reviewed

Cannot be shipped Internationally if shipped by air

• Restricted

End Link, Sway Bar, Polyurethane, White, Front, Each

Part Number: MOG-K700539

4.24 out of 5 stars ( 21 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

GM Restoration Parts Bolts, Steel, Black Oxide, 5/16 in.-18 Thread, 0.750 in. Length, Hex Head, Set of 10

Part Number: OER-K1551

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Bellhousing Dowel Pins, 0.625 in. Diameter, 1.875 in. Length, Chevrolet, Pair

Part Number: ICB-551334

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Flexplate Spacer, Steel, Use When Installing Early GM Transmission to an LS Engine, Each

Part Number: ADO-12563532

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Power Steering Pulley, V-belt Style, 1-groove, Steel, Chrome, 5.925 in. O.D., Press Fit, Each

Part Number: LSC-156

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Fuel Injector, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Each

Part Number: URM-6988

3.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

• Core Charge $10.00

Fan Switch, Thermostatic, Thread-In, Adjustable 160-210 Degrees F, Kit

Part Number: HDA-3651

3.03 out of 5 stars ( 31 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Fittings, Power Steering Adapter, Straight, Steel, Zinc Plated, -6 AN Male, 3/4 in.-16 UNF-2A, for use on Holley Power Steering Pumps, Each

Part Number: EAR-961961ERL

3.89 out of 5 stars ( 19 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lug Nuts, Conical Seat, 14mm x 1.50 RH, 1.945" Long, 22mm Hex, Closed End, Black, Steel, Set of 4

Part Number: MCG-64024

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Power Steering Filter Kit, Elite, Filter, Fittings, Clamps, Buick, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Mercury, Olds, Pontiac, Volkswagen, Kit

Part Number: EDD-70699

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Lug Nuts, Standard Head, Conical Seat, Bulge, Steel, Black Chrome, 14mm x 1.50 RH Thread Size, Set of 4

Part Number: MCG-64034

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Water Neck, Aluminum, Natural, Each

Part Number: ADO-15-10412

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Oil Cooler, Plate, Natural, 11 in. x 6 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-676

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air