2012 Mack GU8 MP8 12.8 Mack Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Mack MP8 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2012 Mack GU8? US Engine Production offers premium remanufactured Mack MP8 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 diesel 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 Mack MP8 Problems We Address
Our remanufacturing process specifically addresses these known issues with Mack MP8 engines:
- EGR cooler failures
- Turbocharger issues
- Injector problems
- Oil cooler failures
- DPF regeneration issues
- Coolant system leaks
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Mack Vehicle Compatibility
Mack MP8 engines are commonly found in these Mack vehicles:
- Anthem highway trucks
- Pinnacle sleeper trucks
- Granite vocational trucks
- TerraPro refuse trucks
- LR refuse trucks
- MD Series medium-duty 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 Mack GU8 Mack MP8 Remanufactured Engine
A remanufactured Mack MP8 12.8L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2012 Mack GU8. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a Mack MP8 remanufactured long block for your 2012 Mack GU8, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing and fast delivery.
What Our Customers Say
Trusted by thousands of customers nationwide
"Excellent quality engine at a great price. The team was very helpful in finding the right engine for my truck. Shipped fast and arrived in perfect condition."
"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."
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 Mack MP8 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 Mack GU8 Engines
Other model years available for the Mack GU8
2014 Mack GU8
Mack MP7 10.8L
2022 Mack GU8
Mack MP8 12.8L
2020 Mack GU8
Mack MP7 10.8L
2010 Mack GU8
Mack MP8 12.8L
2024 Mack GU8
Mack MP8 12.8L
2008 Mack GU8
Mack MP8 12.8L
2024 Mack GU8
Mack MP7 10.8L
2014 Mack GU8
Mack MP8 12.8L
Vehicles with Mack MP8 Engine
This same engine is also available for these vehicles
2018 Mack CHU
MP8 12.8L DIESEL
2007 Mack CXP
MP8 12.8L DIESEL
2021 Mack CHU
MP8 12.8L DIESEL
2019 Mack CXU
MP8 12.8L DIESEL
2013 Mack CHU
MP8 12.8L DIESEL
2009 Mack GU7
MP8 12.8L DIESEL
2007 Mack CTP
MP8 12.8L DIESEL
2021 Mack MRU
MP8 12.8L DIESEL
More Mack Engines
Browse other Mack models with remanufactured engines
2000 Mack CL
Mack E7 11.9L
1991 Mack RD
Mack E6 11L
1982 Mack RD
Mack EM6 11L
1984 Mack U
Mack EM6-L 11L
1993 Mack RD
Mack E7 11.9L
2000 Mack MR
Mack EM7 11.9L
1985 Mack RD
Mack EM6 11L
1992 Mack CH
Mack E7 11.9L
More Mack Engines
Explore other Mack engine models we carry
2001 Mack MR
Mack EM7 11.9L DIESEL
1985 Mack MR
Mack EM6 11L DIESEL
1990 Mack RD
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1986 Mack DM
Mack EM6 11L DIESEL
1996 Mack CH
Mack EM7 11.9L DIESEL
1991 Mack CM
Mack E5 9.8L DIESEL
1988 Mack R
Mack EM6-L 11L DIESEL
1991 Mack RW
Mack E9 16.4L DIESEL
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Buy Mack MP8 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Mack long block engines. Our MP8 remanufactured long blocks for Mack 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 Mack GU8or 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.
