2014 Peterbilt 320 ISX 11.9G 11.9 Cummins Remanufactured Long Block Engine
CNG • Dyno Tested • Warranty Included

About This Cummins ISX 11.9G Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2014 Peterbilt 320? US Engine Production offers premium remanufactured Cummins ISX 11.9G 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 cng 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 Cummins ISX 11.9G Problems We Address
Our remanufacturing process specifically addresses these known issues with Cummins ISX 11.9G engines:
- EGR valve carbon buildup causing performance issues
- Turbo compound unit failures
- Injector cup erosion leading to coolant contamination
- Camshaft and lifter wear
- Oil pump gear failures
- DPF regeneration problems
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Peterbilt Vehicle Compatibility
Cummins ISX 11.9G engines are commonly found in these Peterbilt vehicles:
- Model 579 highway trucks
- Model 389 classic trucks
- Model 567 vocational trucks
- Model 520 refuse trucks
- Model 348 medium-duty trucks
- Model 337 delivery 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: 2014 Peterbilt 320 Cummins ISX 11.9G Remanufactured Engine
A remanufactured Cummins ISX 11.9G 11.9L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2014 Peterbilt 320. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a Cummins ISX 11.9G remanufactured long block for your 2014 Peterbilt 320, 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
"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 Cummins ISX 11.9G 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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Vehicles with Cummins ISX 11.9G Engine
This same engine is also available for these vehicles
2015 Peterbilt 567
ISX 11.9G 11.9L CNG
2015 Peterbilt 567
ISX 11.9G 11.9L CNG
2015 Volvo VNL
ISX 11.9G 11.9L CNG
2015 Peterbilt 365
ISX 11.9G 11.9L CNG
2017 Kenworth T880
ISX 11.9G 11.9L CNG
2016 Peterbilt 365
ISX 11.9G 11.9L CNG
2014 Peterbilt 384
ISX 11.9G 11.9L CNG
2014 Kenworth T800
ISX 11.9G 11.9L CNG
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Browse other Peterbilt models with remanufactured engines
1994 Peterbilt 378
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2015 Peterbilt 384
Cummins ISL-G 8.9L
1999 Peterbilt 357
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2008 Peterbilt 320
Cummins ISL-G 8.9L
2001 Peterbilt 379
Caterpillar 3406 14.6L
2002 Peterbilt 357
Cummins ISX 15.0 15L
1986 Peterbilt 359
Caterpillar 3306 10.5L
2017 Peterbilt 389
PACCAR MX-13 12.9L
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2001 Freightliner FLD112
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Buy Cummins ISX 11.9G Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Cummins long block engines. Our ISX 11.9G remanufactured long blocks for Peterbilt 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 2014 Peterbilt 320or 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.
