2003 GMC SIERRA 1500 HD Parts & Accessories

PowerStop Performance Powdercoated Brake Calipers S4730

Brake Caliper, Cast Iron, Red Powdercoated, 2-Piston, Chevy, GMC, Hummer, Front, Pair

Part Number: PWR-S4730

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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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 )

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McGard Wheel Locks 24210

Lug Nuts, Conical Seat, Bulge, 14mm x 1.50 RH, Closed End, Locking, Chrome Plated Steel, Set of 4

Part Number: MCG-24210

4.71 out of 5 stars ( 21 )

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Walbro Electric In-Tank Fuel Pumps TU432HP-4

Fuel Pump, Electric, In-Tank, 255 lph, Chevy, GMC, Each

Part Number: VPN-TU432HP-2

4.5 out of 5 stars ( 24 )

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Aeromotive Phantom Direct-Fit Fuel Pumps 18312

5 out of 5 stars ( 2 )

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Mahle Original Exhaust Gaskets MS16124

Exhaust Gaskets, Exhaust Manifold, Multi-layer Steel, GM Truck, LS, Includes EGR and Air Injection Gaskets, Set

Part Number: MAH-MS16124

4.88 out of 5 stars ( 8 )

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Powermaster PowerMax Plus Starters 9009

Powermaster PowerMax Plus Starters 9009

Starter, PowerMAX Plus, Mini Hitachi, Standard Rotation, 1.9 HP, 170 ft. lbs. Torque, Black/Natural, Chevy, GMC, LS, Each

Part Number: PWM-9009

4.11 out of 5 stars ( 9 )

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JET Powr-Flo Mass Airflow Sensors 69101

Mass Air Meter, Plastic, Black, Buick, Cadillac, Chevy, GMC, Pickup, SUV, Each

Part Number: JET-69101

4.36 out of 5 stars ( 22 )

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Summit Racing™ Plastic/Aluminum Radiators SUM-380536

Radiator, Exact Fit, Aluminum, Plastic, Cadillac, Cadillac, Hummer, Chevy, GMC, LS, Each w/o Oil cooler

Part Number: SUM-380536

4.5 out of 5 stars ( 8 )

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Bilstein B8 5100 Series Shocks 24-186742

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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Summit Racing™ LS Valve Cover Gasket Kits SUM-G2603

Valve Cover Gasket, Chevy, LS, Pair

Part Number: SUM-G2603

5.0 out of 5 stars ( 1 )

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Hays Twister 3/4 Race 2,400-2,800 Stall Torque Converter 97-1H24Q

Torque Converters, Twister 3/4 Race, 9.600 in. Dia., with Lockup, 30-Spline, 11.125 in. bolt pattern, 2,400-2,800 rpm Stall, 4L60-E, 4L65-E, Each

Part Number: HAY-97-1H24Q

Not Yet Reviewed

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Cloyes Race Billet True Roller Timing Sets 9-3658TX3

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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Dorman Oil Pans 264-135

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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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 )

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JET Powr-Flo Throttle Bodies 76100

Throttle Body, Powr-Flo, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: JET-76100

4.39 out of 5 stars ( 36 )

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Airaid Modular Intake Tubes 200-912

Air Intake Tube, Modular, Polyethylene, Black, Cadillac, Chevy, GMC, Kit

Part Number: AID-200-912

4.63 out of 5 stars ( 35 )

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ACDelco RAPIDFIRE Performance Platinum Spark Plugs 19307137

Spark Plug, RAPIDFIRE Performance Platinum, Tapered Seat, 14mm Thread, Resistor, Each

Part Number: ADO-6

5.0 out of 5 stars ( 10 )

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ATI Super Damper Serpentine Series Harmonic Balancers ATI918629

Harmonic Balancer, Super Damper, Internal Balance, Aluminum/Steel, Chevy, GMC, LS, Each

Part Number: ATI-918629

4.75 out of 5 stars ( 4 )

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Mahle Original Timing Cover Gaskets JV5158

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

Part Number: MAH-JV5158

5.0 out of 5 stars ( 2 )

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Bilstein B8 5160 Series Shocks 25-311891

Shock Absorber, B8 5160 Series, Monotube, Remote Reservoir, Rear, 0-2 in. Lift, Chevy, GMC, Each

Part Number: BSN-25-311891

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Sachs Stock Replacement 168-Tooth Flywheel NFW1050

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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Air Lift WirelessAir 2nd Generation On-Board Air Compressor Systems 74000

On-Board Vehicle Air Compressor, WirelessAir, Wireless Compressor Control, Compressor, Manifold, Control for 2 Air Bags, Kit

Part Number: AIR-74000

1.0 out of 5 stars ( 1 )

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Lokar Midnight Series Billet Window Cranks XIDH-2014

Window Crank Handle, Billet Aluminum, Black, Pair

Part Number: LOK-XIDH-2014

5.0 out of 5 stars ( 6 )

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MechMan Elite Series Alternators 8206250

Alternators and Generators, Elite Series Alternators, 12 V, 250 amps, Internal Regulator, Serpentine Pulley, Buick, Chevy, GMC, Hummer, Olds, Each

Part Number: MEH-8206250

4.5 out of 5 stars ( 2 )

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Sealed Power CP-Series Rod Bearings 2555CP

Rod Bearing, Standard Size, Tri Metal, AM General, Avanti, Buick, Chevy, GMC, Oldsmobile, L6, V8, Each

Part Number: SLP-2555CP

4.75 out of 5 stars ( 4 )

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2003 GMC SIERRA 1500 HD Parts and Accessories