2003 Peterbilt 387 C15 14.6 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar C15 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2003 Peterbilt 387? US Engine Production offers premium remanufactured Caterpillar C15 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 Caterpillar C15 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar C15 engines:
- Injector sleeve failures
- Turbocharger bearing wear
- Oil pump gear failures
- Cylinder head gasket failures
- Camshaft and lifter wear
- ACERT system problems
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Peterbilt Vehicle Compatibility
Caterpillar C15 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: 2003 Peterbilt 387 Caterpillar C15 Remanufactured Engine
A remanufactured Caterpillar C15 14.6L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2003 Peterbilt 387. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a Caterpillar C15 remanufactured long block for your 2003 Peterbilt 387, 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
"Great experience from start to finish. The price was competitive and the quality exceeded my expectations. Will definitely buy again."
"Needed an engine fast for my work truck. They had it in stock and shipped same day. Engine is running perfectly. Highly recommend!"
"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."
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 Caterpillar C15 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 Peterbilt 387 Engines
Other model years available for the Peterbilt 387
2008 Peterbilt 387
Caterpillar C15 14.6L
2010 Peterbilt 387
Caterpillar 3406 14.6L
2002 Peterbilt 387
Caterpillar C15 14.6L
2007 Peterbilt 387
Caterpillar C13 12.5L
2002 Peterbilt 387
Cummins ISX 15.0 15.0L
2003 Peterbilt 387
Caterpillar 3406 14.6L
2003 Peterbilt 387
Cummins ISM 10.8 10.8L
2002 Peterbilt 387
Caterpillar 3406 14.6L
Vehicles with Caterpillar C15 Engine
This same engine is also available for these vehicles
2009 Kenworth W900
C15 14.6L DIESEL
2001 Freightliner Argosy
C15 14.6L DIESEL
2009 Freightliner Cascadia
C15 14.6L DIESEL
2009 Freightliner FLD132
C15 14.6L DIESEL
2001 Freightliner Century Class
C15 14.6L DIESEL
2001 Sterling Truck LT9500
C15 14.6L DIESEL
2009 Freightliner Classic
C15 14.6L DIESEL
2002 Western Star 4900
C15 14.6L DIESEL
More Peterbilt Engines
Browse other Peterbilt models with remanufactured engines
1998 Peterbilt 378
Cummins ISB 5.9L
2001 Peterbilt 330
Cummins M11 10.8L
1999 Peterbilt 377
Cummins N14 14.0L
1993 Peterbilt 379
Caterpillar 3406 14.6L
2012 Peterbilt 386
Cummins ISX 15.0 15.0L
1989 Peterbilt 362
Cummins L10 10.0L
1991 Peterbilt 357
Caterpillar 3406 14.6L
1987 Peterbilt 310
Detroit Diesel Jun-71 7.0L
More Caterpillar Engines
Explore other Caterpillar engine models we carry
2004 Western Star 4900SA
Caterpillar C15 14.6L DIESEL
2006 Chevrolet C6500 Kodiak
Caterpillar C7 7.2L DIESEL
2005 Motor Coach Industries 102DL3
Caterpillar C13 12.5L DIESEL
1986 White WCL
Caterpillar 3406 14.6L DIESEL
2000 Freightliner FL70
Caterpillar 3126 7.2L DIESEL
1990 Ford LA9000
Caterpillar 3306 10.5L DIESEL
1999 International 9300
Caterpillar 3406 14.6L DIESEL
2006 Sterling Truck Condor
Caterpillar C11 11.1L DIESEL
Similar 14.6L DIESEL Engines
Other diesel engines with similar specifications
1998 International 9400
Caterpillar 3406 DIESEL
1999 Peterbilt 379
Caterpillar 3406 DIESEL
1986 Ford LTL9000
Caterpillar 3406 DIESEL
2004 Western Star 4900SA
Caterpillar C15 DIESEL
1992 Kenworth T800
Caterpillar 3406 DIESEL
1988 Mack MH
Caterpillar 3406 DIESEL
1995 Peterbilt 378
Caterpillar 3406 DIESEL
1987 Ford LS9000
Caterpillar 3406 DIESEL
Related Searches
Buy Caterpillar C15 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our C15 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 2003 Peterbilt 387or 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.
PROPOSITION 65 WARNING
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
