2003 CHEVROLET SILVERADO 2500 HD Parts and Accessories

Oil Pump, Standard Volume, Chevrolet, 4.8/5.3/5.7/6.0/6.2L, Each

Part Number: NAL-12710303

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Computer Programmer, DTC Reader, Flashpaq, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Pontiac, Saturn, Each

Part Number: SRC-2845

4.14 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Flywheel Cast Iron 168 tooth GM Truck LS Gen III, 6 Bolt

Part Number: SXR-NFW1050

5.0 out of 5 stars ( 1 )

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Exhaust System, SLM Series Exhaust Systems, Downpipe Back, 409 Stainless Steel, Passenger Side Exit, Natural Finish, 6.6L Duramax, Chevy, Kit

Part Number: MBR-S6005SLM

5.0 out of 5 stars ( 4 )

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Fuel Injectors, 1,000 cc/min., 95 lb/hr., Chevy, Small Block LS, Set of 8

Part Number: DWK-16ULS10008

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Engine Oil, Delvac Extreme, Synthetic, 10W30, 1 Gallon, Each

Part Number: MOB-122454-1

5.0 out of 5 stars ( 12 )

Cannot be shipped Internationally

• Restricted
• Mfr. Rebate

Rebate Expires: 4/30/2026

This Mobil 1 product qualifies for a rebate! Go to https://promotions.mobil.com/offers/delvacrebate/ ...Read More

Get up to $80 back after rebates on qualifying Mobil 1 Delvac products! $10 back on 1-gallon, $12 back on 2.5-gallon, $40 back on a 5-gallon pail of Delvac 1 ESP/Extreme Oil. $5 back on 1-gallon, $7.50 back on 2.5-gallon $20 back on a 5-gallon pail of Delvac 1300 Oil. Limit $80 maximum rebate per household. Go to https://promotions.mobil.com/offers/delvacrebate/ to redeem. Valid on purchases made between 2/1/26 and 4/30/26. Online rebate requests must be received by 5/7/2026. Valid in 50 U.S. states and D.C. only. Purchased together on (1) receipt or separately and combined in (1) envelope. Show Less

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Oil Pan, Stock, Aluminum, Natural, Cadillac, Chevrolet, GMC, Hummer, 4.8L, 5.3L, 6.0L, Each

Part Number: RNB-264-135

4.6 out of 5 stars ( 10 )

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Harmonic Balancer Bolt, Steel, Flanged Hex, Coarse Thread, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-12557840

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Timing Chain and Gears, Single Roller, Steel Sprockets, Chevy, 5.7L LS, 6.0L LS, Kit

Part Number: CLO-9-3658TX3

4.46 out of 5 stars ( 13 )

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Rod Bearings, Race Series, CT-1 Coated, Tri-Metal, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663HC-STD

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Harmonic Balancer, OEM Replacement, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, 4.8, 5.3, 6.0, 6.2L

Part Number: PBB-PB1190N

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

Flexplate, Black, Black Label Edition, 168-Tooth, Internal Engine Balance, SFI 29.1, Chevrolet, 2 Piece Rear Main, Small Block, Big Block, Each

Part Number: PQX-2035073

5.0 out of 5 stars ( 1 )

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Bushings, Body Mounts, Silicone, Black, Chevy, GMC, Crew Cab, Kit

Part Number: SBF-81-2001

5.0 out of 5 stars ( 6 )

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Spark Plug Wires, Extreme 9000 Ceramic, Spiral Core, 8mm, Black, Black Ceramic 180 Degree Boots, GM, 4.8, 5.3, 6.0L, Set

Part Number: ACC-9059CK

4.67 out of 5 stars ( 3 )

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Exhaust System, Performance Series, Downpipe Back, Steel, Passenger Side Exit, Aluminized, 6.6L Duramax, Chevy, Kit

Part Number: MBR-S6005P

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Lifter, Replacement, Hydraulic Roller, 0.842 in. O.D., Chevy, 427, 454, Each

Part Number: MEL-JB-7003

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Water Neck, Aluminum, Black Anodized, Swivel, 60 Degree, Chevrolet, LS, Each

Part Number: MRG-2670BK

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Today

Starters, GM Genuine Parts, GM Style, Standard Rotation, Black/Natural, Chevrolet, GMC, Each

Part Number: ADO-12721722

5.0 out of 5 stars ( 5 )

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Flywheel, 168-tooth, Cast Iron, Chevy, 4.8L, 5.3L, 6.0L, GEN III/IV LS, or LS Swap Each

Part Number: SUM-700092

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Shock, 5100 Series, Monotube, Rear, Chevy, GMC, 4WD, Each

Part Number: BSN-24-186742

4.93 out of 5 stars ( 68 )

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• $30 Summit Bucks

Cylinder Head, Freedom Series Duramax, Cupless Injectors Bore, Passenger side , 6.6L, LB7, Chevy, GMC, Each

Part Number: FLE-S0402

Not Yet Reviewed

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Timing Cover Gaskets, Victo-Tech Rubber, Chevy, GMC, Small Block LS, Kit

Part Number: MAH-JV5158

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Rod Bearings, A-Series, Bi Metal, Standard Size, Chevy, Small Block, Set of 8

Part Number: SLP-8-2555A

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Head Gasket, 4.060 in. Bore, .040 in. Compressed Thickness, Chevy, 5.7, 6.0L, 6.2L, Each

Part Number: CGT-C5751-040

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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: Today