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Chevy 5.3L L59 Remanufactured Engine
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Chevy 5.3L L59 V8 Remanufactured Engine – 1999-2007 4WD/AWD

Original price was: 3.199,00 €.Current price is: 2.799,00 €.

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Displacement: 5.3L V8 (LM7 / L59)
Iron Block / Aluminum Heads
4WD / AWD Applications

Restore legendary Gen-3 GM truck reliability with a precision-built Chevy 5.3L L59 Remanufactured Engine. Engineered to strictly meet or exceed OEM specifications, this heavy-duty V8 long block features Block Casting #12551358, CNC deck machining, 100% new internal wear components, oil pan, timing cover, and rigorous live-run SIM testing.

  • ✔ Architecture: Gen-3 Small Block V8 (OHV 16-Valve) with 6-Bolt Main Caps
  • ✔ Quality Assurance: Hot SIM spun & fully pressurized for compression verification
  • ✔ Vehicle Application: 1999–2007 Cadillac, Chevrolet & GMC 4WD/AWD Vehicles
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Description

Premium Chevy 5.3L L59 Remanufactured Engine (1999–2007)

When replacing a tired or high-mileage powerplant in your GM truck or SUV, our Chevy 5.3L L59 Remanufactured Engine guarantees factory-fresh durability, eliminated oil consumption issues, and peak towing performance. Built specifically around the robust LM7/L59 5.3L V8 architecture featuring Block Casting #12551358 and aluminum cylinder heads, this long block assembly comes pre-assembled with the oil pan and timing cover tailored for 4WD and AWD platforms across Cadillac, Chevrolet, and GMC. Explore our complete catalog of remanufactured engines for fleet and individual retail rebuild projects.

Engine Family

LM7 / L59 V8

Block Cast #12551358

Displacement

5.3L (325 cu in)

Iron Block / Aluminum Heads

Valvetrain

OHV 16-Valve

6-Bolt Main Cap Setup

Drivetrain Fit

4WD / AWD Apps

Includes Oil Pan & Cover

Why Choose Our Chevy 5.3L L59 Remanufactured Engine?

Used salvage yard engines often hide severe cylinder wall scoring, worn cam bearings, and carbon buildup. Our meticulous factory remanufacturing process restores every component to strict zero-hour tolerances. The comprehensive build protocol for every Chevy 5.3L L59 Remanufactured Engine includes:

1. Deep Thermal & Chemical Cleaning

Cast iron engine blocks are fully stripped and hot-tanked, while aluminum cylinder heads undergo specialized thermal cleaning to eliminate carbon scale, oil varnish, and coolant residue.

2. Magnaflux Crack Detection

Magnetic particle inspection (Magnaflux testing) checks all ferrous structural components for microscopic thermal stress cracks and internal fissures before assembly.

3. Precision CNC Deck Machining

Block deck surfaces and aluminum heads are CNC machined to a mirror-smooth finish, ensuring optimal multi-layer steel (MLS) head gasket retention and high cylinder pressure sealing.

4. Brand-New Wear Components

Assembled using 100% new main bearings, rod bearings, pistons, piston rings, hydraulic lifters, high-volume oil pump, gasket kit, Viton™ valve stem seals, freeze plugs, and timing chain set with dampeners.

Automated SIM Testing Validation

To eliminate out-of-box failures, every Chevy 5.3L L59 Remanufactured Engine undergoes advanced cold-run SIM testing prior to crating:

  • Pressurized Lubrication Check: Oil passages and cooling jackets are fully pressurized to verify flow rates and confirm zero leaks across all main and rod journals.
  • Dynamic Crank Rotation: The crankshaft is spun at high RPM via an electric drive motor to test compression balance, ring sealing, and valvetrain quietness across all 8 cylinders.
  • Quality Control Verification: Oil pressure and lifter preload parameters are logged to ensure immediate, dependable startup upon final installation.

Vehicle Compatibility Profile (4WD / AWD)

This 5.3L V8 powerplant is configured specifically for 1999–2007 4WD and AWD GM full-size trucks, SUVs, and vans:

Year Range Make Model / Platform Engine Size
1999 – 2006 Chevrolet Silverado 1500 / 2500 5.3L V8 (5328cc)
1999 – 2006 GMC Sierra 1500 / 2500 5.3L V8 (5328cc)
2000 – 2006 Chevrolet Suburban 1500 / Tahoe 5.3L V8 (5328cc)
2000 – 2006 GMC Yukon / Yukon XL 1500 5.3L V8 (5328cc)
2002 – 2005 Cadillac Escalade (AWD) 5.3L V8 (5328cc)
2002 – 2006 Chevrolet Avalanche 1500 5.3L V8 (5328cc)
2003 – 2007 Chevrolet Express 1500 / 2500 5.3L V8 (5328cc)
2003 – 2007 GMC Savana 1500 / 2500 5.3L V8 (5328cc)
2007 GM / Chevy Silverado / Sierra 1500 Classic 5.3L V8 (5328cc)

Installation & Break-In Protocols

To protect your warranty coverage and ensure long engine life, follow these essential installation procedures:

  1. Cooling System Flush: Completely flush the radiator, heater core, and lines to clear out metallic debris or scale from the previous engine failure.
  2. Oil Priming & Fluid Fill: Fill the crankcase with high-grade conventional break-in oil and prime the oil system prior to initial engine start.
  3. Initial Break-In Period: Avoid heavy towing, aggressive full-throttle runs, or extended idling during the first 500 miles to allow proper piston ring seating against cylinder walls.

Technical Attributes Overview

Engine Codes / Families LM7, L59 (Flex Fuel / Gas)
Block Casting Number #12551358 (392, 393, 398)
Cylinder Head Castings #58862, #61706 (Aluminum)
Crankshaft & Cam Castings Crank #12552216 | Cam #0966, #0967
Displacement & Block Material 5.3L / 325 cu in (Cast Iron Block)
Main Bearing Cap Bolts 6-Bolt Main Configuration
Included Hardware Oil Pan & Timing Cover Assembled

California Proposition 65 Notice: WARNING: This product can expose you to chemicals including chromium (hexavalent compounds), which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more details, visit www.P65Warnings.ca.gov.

Industry-Leading Warranties & Support

Each remanufactured engine comes backed by up to 7 years / 1-million-miles of warranty coverage, fully upgradable to Pure Care™ no-fault protection. For wholesale inquiries, core returns, or shipping logistics regarding the Chevy 5.3L L59 Remanufactured Engine, reach out through the Mechrontech support portal.