2012 GMC Sierra 2500 HD L96 6 General Motors Remanufactured Long Block Engine
FLEX • Dyno Tested • Warranty Included

About This General Motors L96 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2012 GMC Sierra 2500 HD? US Engine Production offers premium remanufactured General Motors L96 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 L96 Problems We Address
Our remanufacturing process specifically addresses these known issues with General Motors L96 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 L96 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: 2012 GMC Sierra 2500 HD General Motors L96 Remanufactured Engine
A remanufactured General Motors L96 6L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2012 GMC Sierra 2500 HD. 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 L96 remanufactured long block for your 2012 GMC Sierra 2500 HD, 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 L96 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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More GMC Sierra 2500 HD Engines
Other model years available for the GMC Sierra 2500 HD
2006 GMC Sierra 2500 HD
General Motors LBZ 6.6L
2011 GMC Sierra 2500 HD
General Motors LGH 6.6L
2013 GMC Sierra 2500 HD
General Motors L96 6L
2018 GMC Sierra 2500 HD
General Motors L96 6L
2008 GMC Sierra 2500 HD
General Motors 6L
2010 GMC Sierra 2500 HD
General Motors LMM 6.6L
2018 GMC Sierra 2500 HD
General Motors L5P 6.6L
2014 GMC Sierra 2500 HD
General Motors LC8 6L
Vehicles with General Motors L96 Engine
This same engine is also available for these vehicles
2018 GMC Sierra 3500 HD
L96 6L GAS
2017 Chevrolet Silverado 3500 HD
L96 6L FLEX
2011 GMC Sierra 2500 HD
L96 6L GAS
2017 Chevrolet Express 3500
L96 6L FLEX
2013 GMC Sierra 3500 HD
L96 6L FLEX
2013 Chevrolet Silverado 2500 HD
L96 6L GAS
2016 Chevrolet Silverado 3500 HD
L96 6L GAS
2013 GMC Sierra 2500 HD
L96 6L FLEX
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2009 GMC Savana 3500
General Motors 6L
1980 GMC G1500
General Motors 5.7L
1980 GMC C2500 Suburban
General Motors 5.7L
2009 GMC Sierra 1500
General Motors 4.8L
1987 GMC V3500
General Motors 7.4L
2005 GMC Sierra 3500
General Motors 6L
More General Motors Engines
Explore other General Motors engine models we carry
1984 Pontiac Parisienne
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2018 Chevrolet Silverado 1500
General Motors L83 5.3L GAS
2006 GMC Sierra 3500
General Motors LBZ 6.6L DIESEL
1988 GMC V3500
General Motors 7.4L GAS
1992 Chevrolet C2500
General Motors 6.2L DIESEL
1992 GMC G2500
General Motors 4.3L GAS
2005 Chevrolet C5500 Kodiak
General Motors LLY 6.6L DIESEL
2002 Pontiac Sunfire
General Motors L61 2.2L GAS
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Buy General Motors L96 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured General Motors long block engines. Our L96 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 2012 GMC Sierra 2500 HDor 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.
