2005 GMC Sierra 1500 L59 5.3 General Motors Remanufactured Long Block Engine
FLEX • Dyno Tested • Warranty Included

About This General Motors L59 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2005 GMC Sierra 1500? US Engine Production offers premium remanufactured General Motors L59 long block engines that meet or exceed OEM specifications. Our remanufactured long blocks are completely disassembled, cleaned, inspected, and rebuilt using new components where necessary.
Every remanufactured flex long block undergoes rigorous dynamometer testing to ensure optimal performance. With over 40 years of experience and a database of 473,000+ engines, we're America's trusted source for remanufactured long block engines.
Common General Motors L59 Problems We Address
Our remanufacturing process specifically addresses these known issues with General Motors L59 engines:
- Timing chain/belt wear
- Oil consumption issues
- Coolant leaks from gaskets
- Spark plug and ignition problems
- Valve cover gasket leaks
- Water pump failures
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
GMC Vehicle Compatibility
General Motors L59 engines are commonly found in these GMC vehicles:
- Sierra 1500, 2500HD, 3500HD trucks
- Canyon compact trucks
- Savana cargo and passenger vans
- Yukon and Yukon XL SUVs
- Acadia and Terrain crossovers
- TopKick and commercial trucks
What's Included With Your Remanufactured Long Block
Complete long block assembly with all new/remanufactured components
Core Components
- Remanufactured Engine Block
Cleaned, inspected, and machined to OEM specifications
- New Pistons & Rings
Premium quality pistons with new ring sets
- Reground Crankshaft
Precision ground to factory tolerances
- New Main Bearings
OEM-spec main bearings for proper clearance
- New Rod Bearings
Connecting rod bearings replaced
- New Camshaft
New or reground camshaft (where applicable)
Timing Components
- New Timing Chain/Belt
Complete timing set included
- New Timing Gears/Sprockets
All timing components replaced
- New Tensioners & Guides
Timing tensioners and guides included
Valvetrain
- New Lifters/Tappets
Hydraulic or solid lifters replaced
- Reconditioned Cylinder Head(s)
Heads resurfaced and pressure tested
- New Valve Seals
All valve stem seals replaced
Seals & Lubrication
- New Oil Pump
Oil pump replaced for proper lubrication
- New Gasket Set
Complete gasket set included
- New Front & Rear Seals
All main seals replaced
- New Freeze Plugs
Core plugs replaced
Frequently Asked Questions: 2005 GMC Sierra 1500 General Motors L59 Remanufactured Engine
A remanufactured General Motors L59 5.3L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2005 GMC Sierra 1500. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a General Motors L59 remanufactured long block for your 2005 GMC Sierra 1500, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing with free nationwide shipping.
What Our Customers Say
Trusted by thousands of customers nationwide
"I've bought several engines from US Engine Production over the years. Always top quality and their customer service is the best in the business."
"Was worried about buying a remanufactured engine but these guys made it easy. Engine runs like new and the warranty gives me peace of mind."
"Fast shipping and the engine was exactly as described. Installation went smoothly and it's been running great for 6 months now."
Warranty & Quality Assurance
Core Return Required: A refundable core deposit is required. We provide a prepaid shipping label for your old engine core return.
Call us for the best price on this General Motors L59 remanufactured long block. Prices may vary based on configuration.
Email: [email protected]
Why US Engine Production?
- 40+ years of experience
- 473,000+ engines in database
- Nationwide shipping
- Expert technical support
- Quality guaranteed
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Other model years available for the GMC Sierra 1500
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2006 GMC Sierra 1500
General Motors L59 5.3L
2012 GMC Sierra 1500
General Motors 4.3L
2006 GMC Sierra 1500
General Motors LM7 5.3L
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General Motors L20 4.8L
2010 GMC Sierra 1500
General Motors L9H 6.2L
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2006 GMC Sierra 1500
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Vehicles with General Motors L59 Engine
This same engine is also available for these vehicles
2006 Chevrolet Silverado 1500
L59 5.3L FLEX
2007 Chevrolet Silverado 1500 Classic
L59 5.3L FLEX
2003 GMC Sierra 1500
L59 5.3L FLEX
2006 GMC Sierra 1500
L59 5.3L FLEX
2007 GMC Sierra 1500 Classic
L59 5.3L FLEX
2005 Chevrolet Silverado 1500
L59 5.3L FLEX
2004 Chevrolet Silverado 1500
L59 5.3L FLEX
2002 Chevrolet Silverado 1500
L59 5.3L FLEX
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1983 GMC C1500
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1991 GMC K1500
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1993 GMC C2500
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2008 GMC Yukon XL 1500
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1999 GMC Sierra 1500
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1996 GMC K1500
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1988 Chevrolet C3500
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Buy General Motors L59 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured General Motors long block engines. Our L59 remanufactured long blocks for GMC vehicles include all new internal components including pistons, rings, bearings, timing components, and gaskets. Every long block is dyno tested and backed by our 1-year, unlimited mileage warranty. Whether you need a replacement long block engine for your 2005 GMC Sierra 1500or any other application, our team of experts is ready to help. Call us at (631) 991-7700 or email [email protected] for a free quote today.
