2003 GMC SIERRA-1500-HD Engines & Components

VALVE ASM

Part Number: NAL-25014006

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Estimated Ship Date: Jan 12, 2026 if ordered today

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PLUG ASM-A/TRNS FLUID PAN DRN

Part Number: NAL-24233099

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Estimated Ship Date: Jan 12, 2026 if ordered today

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TENSIONER

Part Number: NAL-12609719

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Oil Pump Screen Assy.

Part Number: SLP-22415070

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Pistons, Speed of Air, Dimpled, 4032 Forged, 4.070 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, +4.00cc Flat Top, Piston Rings, Chevy, 6.0L, 6.2L, Kit

Part Number: UEM-XA552-070K2

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Estimated Ship Date: Oct 22, 2025 if ordered today

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IDLER AND TENSIONER PULLEYS

Part Number: CEL-49150

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Estimated Ship Date: Oct 3, 2025 if ordered today

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HARMONIC DAMPER, HI-PERF CHEV-GM 5.3L-6.2L, 2002-2008 Gen III/IV, Cadillac, Chev, GMC, L92 Truck and SUV, 0-Bal, 7.70" OD, Black

Part Number: PQX-2332340

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Estimated Ship Date: Oct 29, 2025 if ordered today

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Oil Filter, Canister, 13/16-16 in. Thread Size, Buick, Cadillac, Chevy, GMC, Each

Part Number: CWA-89017342

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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Piston Rings, Phosphate Coated, 4.030 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-4860030

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Piston Rings, Phosphate Coated, 4.039 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-4860040

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Piston Rings, Phosphate Coated, 4.059 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-4860060

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Cam Bearings, King HP-Series Cam Bearings, Bi-Metal, General Motors, Dart LS Next Block, Sold as a Kit

Part Number: KGB-CS5172HPT

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Silv-O-Lite Piston - Chevrolet 364ci/6.0L (V8) Kit with Rings

Part Number: UEM-3516HC-025K1

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Silv-O-Lite Piston - Chevrolet 364ci/6.0L (V8) Kit with Rings

Part Number: UEM-3516HC-STDK1

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Piston With Rings, Hypereutectic, Dish, 6.0L, 2nd Design, Each

Part Number: MAH-2243663WR050

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Piston With Rings, Hypereutectic, Dish, 6.0L, 2nd Design, Each

Part Number: MAH-2243663WR075

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Piston - GM 6.0L 02-05 vin code U 0.25mm (Reduced Compression)

Part Number: MAH-2243663025MM

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Piston - GM 6.0L 02-05 vin code U 0.75mm (Reduced Compression)

Part Number: MAH-2243663075MM

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Piston, OE Replacement, Cast Aluminum, Dish, 4.020 in. Bore, Chevy, Small Block, Each

Part Number: MAH-S0055

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Timing Chain and Gear Set, Hex A Just Double Roller, Double Roller, 0.390 in. Raised Cam, Chevy, 4.8/5.3/6.0L, Set

Part Number: CLO-9-3159AR

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Engine Timing Set, High Performance Timing Set

Part Number: CLO-9-3659X3Z

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Estimated Ship Date: Oct 1, 2025 if ordered today

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