2015 Kenworth T660 ISX Cummins Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Cummins ISX Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2015 Kenworth T660? US Engine Production offers premium remanufactured Cummins ISX 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 Cummins ISX Problems We Address
Our remanufacturing process specifically addresses these known issues with Cummins ISX 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
Kenworth Vehicle Compatibility
Cummins ISX engines are commonly found in these Kenworth vehicles:
- T680 highway trucks
- W900 classic trucks
- T880 vocational trucks
- T370 medium-duty trucks
- K270/K370 cabover trucks
- T440/T470 work 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: 2015 Kenworth T660 Cummins ISX Remanufactured Engine
A remanufactured Cummins ISX engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2015 Kenworth T660. 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 remanufactured long block for your 2015 Kenworth T660, 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 Cummins ISX 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 Kenworth T660 Engines
Other model years available for the Kenworth T660
2011 Kenworth T660
Caterpillar C13 12.5L
2016 Kenworth T660
Cummins ISX
2017 Kenworth T660
Cummins ISM 10.8L
2015 Kenworth T660
PACCAR MX-13 12.9L
2011 Kenworth T660
Cummins ISX 15.0 15.0L
2020 Kenworth T660
PACCAR MX-13 12.9L
2018 Kenworth T660
PACCAR MX-13 12.9L
2017 Kenworth T660
PACCAR MX-13 12.9L
Vehicles with Cummins ISX Engine
This same engine is also available for these vehicles
2017 Kenworth T800
ISX DIESEL
2017 Kenworth T680
ISX DIESEL
2015 Kenworth W900
ISX DIESEL
2016 Kenworth T680
ISX DIESEL
2016 Kenworth T800
ISX DIESEL
2017 Kenworth T800
ISX DIESEL
2015 Kenworth T660
ISX DIESEL
2016 Kenworth T800
ISX DIESEL
More Kenworth Engines
Browse other Kenworth models with remanufactured engines
2006 Kenworth C500
Caterpillar C11 11.1L
2018 Kenworth W900
Cummins ISX 11.9 11.9L
2013 Kenworth T680
PACCAR MX 12.9L
2017 Kenworth T880
Cummins ISM 10.8L
2006 Kenworth C500
Caterpillar C13 12.5L
1984 Kenworth C500
Caterpillar 3306 10.5L
2017 Kenworth KW55
PACCAR
2017 Kenworth T680
PACCAR MX-13 12.9L
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Explore other Cummins engine models we carry
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2001 Dodge Ram 3500
Cummins 5.9L DIESEL
1997 El Dorado Escort RE
Cummins 6CT8.3 8.3L DIESEL
1988 Crown Coach School Bus
Cummins 6CT8.3 8.3L DIESEL
2001 Freightliner Century Class
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2009 Freightliner XC Raised Rail
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Buy Cummins ISX Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Cummins long block engines. Our ISX remanufactured long blocks for Kenworth 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 2015 Kenworth T660or 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.
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WARNING: Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov
