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

ACDelco Rear Main Seal Housings 12639250

Rear Main Seal Housing, LS Engine Crankshaft Rear Seal Housing, Aluminum, Includes Seal and Gasket, Will not fit LSX, Each

Part Number: ADO-12639250

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

Summit Racing™ 86 Series 8mm 300 Ohm Ignition Wires SUM-867830R

Spark Plug Wires, 86 Series, 8mm, 300 Ohm, Red, 12" Leads, OEM Spark Plug Boots That Accept Heat Shields, LS, V8, Set

Part Number: SUM-867830R

4.75 out of 5 stars ( 44 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

King XP-Series Rod Bearings CR 807XPN

Rod Bearings, XP-Series, Tri-Metal, Standard Size, Narrowed, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807XPN

4.5 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco GM Genuine Parts Knock Sensors 12589867

Knock Sensor, Cadillac, Chevy, GMC, Each

Part Number: ADO-213-3521

4.67 out of 5 stars ( 86 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Melling High-Volume Oil Pumps M-77HV

Melling High-Volume Oil Pumps M-77HV

Oil Pump, High-Volume, Standard Pressure, Chevy, Big Block, Each

Part Number: MEL-M77HV

4.66 out of 5 stars ( 29 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco Engine Oil Pressure Indicator Switches 12677836

Oil Pressure Sensor, Engine, Steel/Plastic, Black/Natural, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Pontiac, Each

Part Number: ADO-12677836

4.35 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 Oil Pan Gaskets 12612350

Oil Pan Gasket, One-piece, Silicone/Aluminum, Chevy, Small Block LS, Each

Part Number: ADO-12612350

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Hayden Rapid-Cool Transmission Oil Coolers 679

Transmission Oil Cooler, Plate, Natural, 11 in. x 11.625 in. x 0.75 in., 3/8 in. Inlet, Outlet, Each

Part Number: HDA-679

4.73 out of 5 stars ( 67 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Melling Oil Pumps M295

Oil Pump, Standard-Volume, Chevy, 4.8/5.3/5.7/6.0L, Each

Part Number: MEL-M295

4.85 out of 5 stars ( 13 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Vision HD 84 D Window Series Black Wheels 16x8

Wheel, 84 D Window, Steel, Gloss Black, 16 x 8 in., 4.25 in. Backspace, Each

Part Number: VSW-84H6881NS

3.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACL Performance Race Series Rod Bearing Sets 8B663H-STD

Rod Bearings, Race Series, Tri-Metal, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663H-STD

Not Yet Reviewed

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Dorman Knock Sensor Kits 926-084

Knock Sensors, Wiring Harness, Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Kit

Part Number: RNB-926-084

3.24 out of 5 stars ( 21 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Belltech Street Performance Shocks 2210FF

Shocks and Struts, Street Performance Shocks, Lowered Ride Height, 5.00-7.00 in. Lowered Range, Twin-tube, Gas-charged, Rear, Chevrolet, GMC, Each

Part Number: BEL-2210FF

4.9 out of 5 stars ( 29 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Chevrolet Performance Composition Head Gaskets 12589227

Head Gasket, MLS, 4.020 in. Bore, .051 in. Compressed Thickness, Chevy, Small Block, LS2/LS6, Each

Part Number: NAL-12589227

4.8 out of 5 stars ( 20 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

King HP-Series Rod Bearings CR 807HPN

Rod Bearings, HP-Series, Standard Size, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Cometic MLS Head Gaskets C5489-040

Head Gasket, MLS, 4.100 in. Bore, .040 in. Compressed Thickness, Chevy, Each

Part Number: CGT-C5489-040

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

ACDelco GM Genuine Parts 168-Tooth Flexplate 19260102

Flexplate, OE Replacement, 168-Tooth, 14.00 in. Diameter, Internal Balance, Steel, Chevy, LS, 4L80E/TH350/TH400, Each

Part Number: ADO-19260102

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Sealed Power MA Series Main Bearings 7298MA

Main Bearings, MA-Series, Bi Metal, Standard Size, Chevy, 4.8, 5.3, 5,7, 6.0L, Set of 5

Part Number: SLP-7298MA

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Dorman Rear Main Seal Covers 635-518

Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Melling Timing Chain Sets 3-3SRH60SA

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

Part Number: MEL-3-3SRH60SA

4.0 out of 5 stars ( 22 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Belltech Rear Shackle Kits 6400

Shackles, 2 in. Drop, 2.5 in. Wide Spring, Chevy, Dodge, Ford, GMC, Rear, Pair

Part Number: BEL-6400

4.84 out of 5 stars ( 90 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

King XP-Series Rod Bearings CR 807XPNSTDX

Rod Bearings, Tri-metal, Copper Lead Nickel, .001 in. Extra Oil Clearance, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807XPNSTDX

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

Chevrolet Performance Replacement Timing Chains 12646387

Timing Chain, Replacement, Single Roller, Steel, Chevy, Small Block LS, Each

Part Number: NAL-12646387

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

Mahle Original Intake Manifold Gaskets MIS16340

Intake Manifold Gaskets, Original, Stock Port, Molded Rubber Compound, Chevy, 4.8L, 5.3L, 6.0L, Kit

Part Number: MAH-MIS16340

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/29/2025

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Estimated Ship Date: Monday 12/29/2025

Cometic MLS Head Gaskets C15515-040

Head Gasket, MLS, Multi-Layer Steel, 4.030 in. Bore, 0.040 in. Compressed Thickness, Cadillac, Chevrolet, Pontiac, Small Block LS, Each

Part Number: CGT-C15515-040

Not Yet Reviewed

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