2003 GMC SIERRA 1500 Engines & Components

Earl's Performance Vented Oil Fill Caps 3434122ERL

Oil Fill Cap, Twist-In, Billet Aluminum, Black, -10 AN, LS, Gen-V, Coyote, Each

Part Number: EAR-3434122ERL

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

ACDelco Power Steering Pulleys 19421487

Power Steering Pulley, Serpentine, 6-Groove, Steel, Black, GM, Each

Part Number: ADO-19421487

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Melling Replacement Valve Locks VL-200

Valve Locks, Replacement, 1-groove, Steel, for 0.341 in. Valve Stem Diameter, AMC, Buick, Cadillac, Chevy, Edsel, Ford, GMC, Jeep, Olds, Mercury, Pair

Part Number: MEL-VL-200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

PRW Pro Series Shaft-Mount Rocker Arms 60375317

ROCKER ARM KIT, PRO SERIES, GM LS Series. 4.8L-6.2L 1997-up, None Adjustable With Precision Roller Tip, 1.7 x 8mm, includes 16 Dynamic Design Rocker

Part Number: PQX-60375317

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Hastings Piston Ring Sets 2M4978020

Piston Rings, Plasma-moly, 3.799 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4978020

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

King XP-Series Coated Main Bearings MB5013XPC 010

Main Bearing Set, CHEVROLET LS series L20, LS1/2/4/6 - pMaxKote

Part Number: KGB-MB5013XPC010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cloyes Heavy-Duty Timing Sets C-3210

Cloyes Heavy-Duty Timing Sets C-3210

Timing Chain and Gear Set, Heavy Duty, Single Non-Roller, Iron/Billet Steel Sprockets, Chevy, Small Block, Set

Part Number: CLO-C3210

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Lares Power Steering Pulleys 157

Power Steering Pulley, V-belt Style, 2-groove, Press Fit, Steel, Chrome, 5.82 in. O.D., 0.750 in. Bore, Each

Part Number: LSC-157

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Mahle Original Premium Piston Ring Sets 41859CP.020

Piston Rings, Plasma-moly, 3.799 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-41859CP020

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

King XP-Series Main Bearings MB5013XP 011

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.011 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP011

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Melling Stock Replacement Cam and Lifter Kits CL-MC1401

Camshaft, KIT-ENGINE CAMSHAFT/LIFTER

Part Number: MEL-CL-MC1401

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

PRW SFI-Rated Racing Dampers 2432340

Harmonic Balancer, PQx, Internal Balance, Black, Chevy, LS, Each

Part Number: PQX-2432340

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

ACDelco GM Genuine Parts Rocker Arm Shaft Supports 12552203

Rocker Arm Shaft Support, GM Genuine Part, Aluminum, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each

Part Number: ADO-12552203

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Chevrolet Performance Oil Pan Bolts 12554990

Oil Pan Bolt, Steel, Gold Iridite, GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Each

Part Number: NAL-12554990

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Continental OE Technology Series Multi-V Belts 4060922

Belt, OE Technology Series, Multi-V, Serpentine, 6-Rib, 92.25 in. Length, Each

Part Number: CEL-4060922

4.94 out of 5 stars ( 16 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Holley Sniper Fabricated Aluminum Valve Covers 890014

Valve Covers, Sniper EFI, Fabricated, Aluminum, 2.25 in. Tall, Center Bolt Mount, Silver Gloss, No Breather Hole, Hardware, Chevy, LS, 4.8-7.0L, Pair

Part Number: SNE-890014

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cloyes Z Series Replacement Timing Chains 9-304

Timing Chain, Single Roller, Replacement, Chevy, Small Block, LS, Each

Part Number: CLO-9-304

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Sealed Power CP-Series Rod Bearings 8-2555CP 10

Rod Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, Chevy, Small Block, Set of 8

Part Number: SLP-8-2555CP10

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Chevrolet Performance Valve Locks 10166345

Valve Lock, 7 degree, Stamped Steel, 1-groove Beadlock-style, 8mm Stem Diameter, Each

Part Number: NAL-10166345

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

J&L Oil Separator Co. 3.0 Oil Separators 3084D-C

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Clear Anodized, 3/8 in. NPT Female Threads, Driver Side, Chevy, GMC, 4.8, 5.3, 6.0, 6.2L, Kit

Part Number: JLT-3084D-C

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Cloyes Hex-A-Just Z-Racing Timing Sets 9-3158AZ

Timing Chain and Gear Set, Hex-A-Just Roller, Single Roller, Z-Chain, Chevy, LS1, LS2, LS6, Set

Part Number: CLO-9-3158AZ

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

King XP-Series Main Bearings MB1328XP

Main Bearings, XP-Series, Standard, Tri Metal Copper-Lead Nickel, Chevrolet, 4.8, 5.3, 6.0, 6.2L, Thrust Bearing Only, Pair

Part Number: KGB-MB1328XP

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air

ACDelco GM Genuine Parts Multi-Purpose Threaded Plugs 11610259

Engine Coolant Plug Fasteners, GM Genuine Parts, Bolt Style, Hex Head, M12 x 1.5 Thread Size, Steel, Buick, Cadillac, Chevy, GMC, Isuzu, Saturn, Each

Part Number: ADO-11610259

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 4/20/2026 if shipped by air