2003 CHEVROLET SILVERADO 1500 HD Parts & Accessories

Motive Gear Ring and Pinion Sets GM9.5-410 GM 9.5 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-410

3.4 out of 5 stars ( 5 )

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Scott Performance High Performance Spark Plug Wire Sets CH-LS-T-6

Scott Performance High Performance Spark Plug Wire Sets CH-LS-T-6

Spark Plug Wire Set, High Performance, 10mm Diameter, Coil Pack, Silicone Boot, Black, Spiral Core, 30 ohms/ft., Purple Wire, Chevy, Small Block, Set

Part Number: SCW-CH-LS-T-6

4.67 out of 5 stars ( 3 )

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ATI Replacement Hubs ATI916032H

Harmonic Balancer Component, Replacement Hub, Internal Engine Balance, Heat Treated (1) One 3/16 in. Keyway, Cadillac, Chevy, Each

Part Number: ATI-916032H

5.0 out of 5 stars ( 1 )

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5w30 Mobil 1 Extended Performance Motor Oil 112627

Engine Oil, Extended Performance, Synthetic, 5W30, 1 qt., Each

Part Number: MOB-112627-1

5.0 out of 5 stars ( 1 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

CURT Trailer Wiring Harness Extensions 56475

Trailer Wiring Harness Extension, 7-way Round Male To 7-way Round Female, 7-way Male Trailer Connection, 24 in. Length, Chevy, Ford, GMC, Ram, Each

Part Number: CHT-56475

Not Yet Reviewed

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5w30 Mobil 1 Synthetic Motor Oil 124315

Engine Oil, Mobil 1, Synthetic, 5W30, 1 qt., Set of 6

Part Number: MOB-124315

Not Yet Reviewed

Cannot be shipped Internationally

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Cannot be shipped Internationally

ACDelco Gold Molded Radiator Coolant Hoses 22827735

Hoses, Gold Molded Radiator Collant Hoses, Reinforced Rubber, Black, 1.516 in. Ends, Lower, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-22827735

5.0 out of 5 stars ( 1 )

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PowerStop Z36 Truck and Tow Brake Upgrade Kits K2023-36

Brake Rotors/Pads, Truck and Tow, Drilled/Slotted, Iron, Zinc Plated, Front/Rear, Chevy, GMC, Hummer, Kit

Part Number: PWR-K2023-36

5.0 out of 5 stars ( 3 )

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Autolite XP Xtreme Performance Spark Plugs XP5245

Spark Plug, Resistor, Iridium Tip, Copper Core, 14mm Thread Size, 0.708 in. Reach, Tapered Seat, Each

Part Number: ATL-XP5245

3.0 out of 5 stars ( 1 )

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Summit Racing™ Race Series 50 Ohm 8.5mm Ignition Wires SUM-887830

Spark Plug Wires, Race Series, 8.5mm, Black, 50 Ohm, 12" Leads, OEM Spark Plug Boots That Accept Heat Shields, LS, V8, Set

Part Number: SUM-887830

4.13 out of 5 stars ( 30 )

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Derale Engine Oil Filter Relocation Kits 15780

Oil Filter Relocation Kit, Single Filter, 3/4-16 in. Filter Threads, Various Engine Threads, Low Profile, Kit

Part Number: DER-15780

1.0 out of 5 stars ( 1 )

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Powermaster OEM-Style High-Torque Replacement Starters 13510

Starter; High Torque; 168 Tooth Flywheel; Staggered Pad Mount; Chrome

Part Number: PWM-13510

3.67 out of 5 stars ( 3 )

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ OEM Replacement Starters SUM-G1668

4.75 out of 5 stars ( 15 )

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K&N Universal Performance Air Filters RU-5046

Air Filter Element, Powersports, Round Taper, Clamp-On, Cotton Gauze, Oiled, Red, 7.50 in. OD, 6.00 in. ID, 9.00 in. Tall, Rubber Cap, Each

Part Number: KNN-RU-5046

5.0 out of 5 stars ( 2 )

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McLeod Flywheel Bolt Kits 1556

Flywheel Bolts, 12-Point, 11mm x 1.5 Thread, GM LS, Set of 6

Part Number: MCL-1556

3.0 out of 5 stars ( 2 )

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ACL Performance Race Series Rod Bearing Sets 8B663H-001

Rod Bearings, Race Series, Tri-Metal, .001 in., .025mm Crankshaft Undersize, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663H-001

Not Yet Reviewed

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Speed-Pro Competition Series Main Bearings 152M

Main Bearings, Competition Series, Standard Size, Super Duty Alloy, 3/4 Groove, Chevy, LS, Set of 5

Part Number: SLP-152M

Not Yet Reviewed

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Dorman Harmonic Balancer Bolts 917-139

Harmonic Balancer Bolt, Hex Head, 16mm x 2.0 Thread, Steel, Natural, Chevy, Each

Part Number: RNB-917-139

5.0 out of 5 stars ( 3 )

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Cometic MLS Head Gaskets C5477-036

Head Gasket, MLS, Multi-layer Stainless Steel, 4.000 in. Bore, 0.036 in. Compressed Thickness, Chevrolet, LS, Each

Part Number: CGT-C5477-036

Not Yet Reviewed

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Pacer Performance Flexy Flares Fender Flares 52-178

Fender Flare, Synthetic Rubber, Black, 4.25 in. Flare Width, 1/4 in. Thick, 25 ft. Length Roll, Each

Part Number: PPP-52-178

4.0 out of 5 stars ( 5 )

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Timken Wheel Bearings 513067

Wheel Bearing, Steel, Each

Part Number: TMK-513067

3.0 out of 5 stars ( 2 )

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14 Inch 1,570 CFM Hayden Super Duty Electric Fan 3920

Electric Fans, 14 in. Diameter, Puller, 1,570 cfm, 14.00 amps, Each

Part Number: HDA-3920

Not Yet Reviewed

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Yukon Gear & Axle 14 Bolt GM 9.5 Inch Differential Cover YP C5-GM9.5

Differential Cover, 14-bolt, Steel, Natural, GM 9.5 in., Each

Part Number: YGA-32333

4.0 out of 5 stars ( 4 )

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Dorman Climate Control Modules 599-211XD

Climate Control Module, With Automatic A/C Controls, Auto Programming, Buick, Cadillac, Chevy, GMC, Isuzu, Oldsmobile, Saab, Each

Part Number: RNB-599-211XD

4.33 out of 5 stars ( 6 )

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Dayco No Slack Idler Pulleys 89006

Idler Pulley, 90mm Diameter, 30mm Thick, Serpentine, Flat/No Grooves for 6-Rib Width Belts, 17mm Bearing Inside Diameter, Steel, Black, Each

Part Number: DAC-89006

5.0 out of 5 stars ( 7 )

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ACDelco GM Genuine Parts Automatic Transmission Shifter Cables 19434388

Automatic Transmission Shifter Cable, GM Genuine Part, Black Jacket, Ball Socket Ends, 135.710 in. Length, Chevrolet, GMC, Each

Part Number: ADO-19434388

5.0 out of 5 stars ( 2 )

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2003 CHEVROLET SILVERADO 1500 HD Parts and Accessories