2003 GMC SIERRA-1500-HD Engines & Components

Engine Timing Set, High Performance Timing Set

Part Number: CLO-9-3159AZ

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Oil Drain Pan Plugs, Plug, Thread Size 12mm x 1.75, Each

Part Number: RNB-65416

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Rod Bearings, HP-Series, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN030

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Piston Rings, Plasma-moly, 4.059 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4860060

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Timing Chain and Gear Set, Roller, Double Roller, Billet Steel Sprockets, Chevy, GMC, Small Block LS, Set

Part Number: PQX-5034621

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Estimated Ship Date: Oct 29, 2025 if ordered today

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Timing Chain and Gear Set, Roller, Double Roller, Billet Steel Sprockets, Chevy, GMC, Small Block LS, Set

Part Number: PQX-5034622

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Estimated Ship Date: Oct 29, 2025 if ordered today

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Pistons, Hypereutectic, Dish, 102.6mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-1-0MM

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Pistons, Hypereutectic, Dish, 101.85mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-25MM

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 24, 2025 if ordered today

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Pistons, Hypereutectic, Dish, 102.1mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-5MM

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Holden, Sold as a Set of 5

Part Number: KGB-MB5398SI

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Idler Pulley, Serpentine, Steel, Black, for use on Acura®, GM, Ford, Jaguar, Each

Part Number: HDA-5975

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

Cylinder Head, Remanufactured, Assembled, Aluminum, Natural, Cadillac, Chevy, GMC, Hummer, Isuzu, V8, Each

Part Number: VRE-2CTF

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Estimated Ship Date: Oct 29, 2025 if ordered today

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CAMSHAFT ENGINE

Part Number: MEL-22326

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Oil Filter, 13/16-16 in. Thread, 3.268 in. Height, Each

Part Number: DNP-150-2007

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.040 in. Crankshaft Undersize, Chevy, Set of 5

Part Number: KGB-MB5293SI040

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Estimated Ship Date: Dec 12, 2025 if ordered today

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TENSIONER

Part Number: NAL-12580196

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Estimated Ship Date: Jan 13, 2026 if ordered today

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CAMSHAFT ENGINE

Part Number: MEL-22327

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Estimated Ship Date: Oct 13, 2025 if ordered today

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CAMSHAFT ENGINE

Part Number: MEL-22206

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Estimated Ship Date: Oct 13, 2025 if ordered today

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CAMSHAFT ENGINE

Part Number: MEL-22310

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Replacement Timing Chain, True Roller, Chevy, Pontiac, 0.010 in. Reduced Center, Each

Part Number: CLO-9-131-10

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Timing Chain and Gears, Single Roller, Billet Steel Sprockets, Center Distance Raised 0.390 in., Chevy, Small Block LS, Kit

Part Number: CLO-9-3658TX3ZR

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Harmonic Balancer, Internal Balance, Nodular Iron, Buick, Cadillac, Chevy, GMC/Hummer/Isuzu, Small Block, Each

Part Number: ATP-102171

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 1, 2025 if ordered today

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Accessory Drive Belt Kit, 4 Groove Belt, Tensioner, Kit

Part Number: CEL-K49276

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Power Steering Pulley, Serpentine, 10-Groove, Press Fit, 6.260 in. Outside Diameter, Billet Aluminum, Natural, Chevy, GMC, Truck, LS, Each

Part Number: INW-911

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Estimated Ship Date: Today

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Idler Pulley, Serpentine, Steel, Black, Each

Part Number: CEL-49154

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Estimated Ship Date: Oct 2, 2025 if ordered today

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