2004 Freightliner Classic C13 12.5 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar C13 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2004 Freightliner Classic? US Engine Production offers premium remanufactured Caterpillar C13 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 C13 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar C13 engines:
- Injector o-ring failures causing fuel leaks
- HEUI pump failures affecting fuel delivery
- Turbocharger wastegate issues
- Cylinder liner pitting from coolant contamination
- Oil cooler failures
- ECM sensor failures
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Freightliner Vehicle Compatibility
Caterpillar C13 engines are commonly found in these Freightliner vehicles:
- Cascadia highway trucks
- Coronado classic trucks
- M2 106/112 medium-duty trucks
- 114SD severe-duty trucks
- Business Class trucks
- Sprinter vans
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: 2004 Freightliner Classic Caterpillar C13 Remanufactured Engine
A remanufactured Caterpillar C13 12.5L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2004 Freightliner Classic. 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 C13 remanufactured long block for your 2004 Freightliner Classic, 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
"Fast shipping and the engine was exactly as described. Installation went smoothly and it's been running great for 6 months now."
"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!"
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 C13 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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Other model years available for the Freightliner Classic
2007 Freightliner Classic
Caterpillar C13 12.5L
2004 Freightliner Classic
Caterpillar C12 12L
2007 Freightliner Classic
Mercedes-Benz MBE4000 12.8L
2004 Freightliner Classic
Detroit Diesel Series 60 12.7L
2001 Freightliner Classic
Cummins N14 14L
2009 Freightliner Classic
Mercedes-Benz MBE4000 12.8L
2004 Freightliner Classic
Caterpillar C15 14.6L
2007 Freightliner Classic
Detroit Diesel Series 60 12.7L
Vehicles with Caterpillar C13 Engine
This same engine is also available for these vehicles
2006 Freightliner Columbia
C13 12.5L DIESEL
2008 Freightliner Century Class
C13 12.5L DIESEL
2011 International WorkStar 7600
C13 12.5L DIESEL
2004 Oshkosh Motor Truck Co. S
C13 12.5L DIESEL
2005 Western Star 4900FA
C13 12.5L DIESEL
2005 Freightliner Columbia
C13 12.5L DIESEL
2006 Peterbilt 362
C13 12.5L DIESEL
2008 International 8600 TranStar
C13 12.5L DIESEL
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1990 Freightliner FLA086
Cummins L10 10L
2009 Freightliner Sprinter 2500
Mercedes-Benz EXM 3L
2001 Freightliner Century Class
Cummins ISB 3.9L
2001 Freightliner FC80
Caterpillar 3126 7.2L
2000 Freightliner Argosy
Cummins ISX 15.0 15L
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Explore other Caterpillar engine models we carry
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Caterpillar C12 12L DIESEL
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Caterpillar 3208 10.4L DIESEL
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Caterpillar 3306 10.5L DIESEL
1981 Western Star 4800
Caterpillar 3306 10.5L DIESEL
Similar 12.5L DIESEL Engines
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Buy Caterpillar C13 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our C13 remanufactured long blocks for Freightliner 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 2004 Freightliner Classicor 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.
