Name: Caterpillar C12 12.0L Diesel Engine Remanufactured Long Block For Sale
Brand: Caterpillar
SKU: REMAN-CATERPILLAR-C12-155029
Price: 14988.00 USD
Availability: InStock
Rating: 4.8 (127 reviews)

Question 1

How much does a remanufactured Caterpillar C12 12.0L engine cost for a 2003 Freightliner FLD120?

Accepted Answer

A remanufactured Caterpillar C12 12.0L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2003 Freightliner FLD120. 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 C12 remanufactured long block for your 2003 Freightliner FLD120, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing and fast delivery.

Question 2

What is included in a remanufactured Caterpillar C12 long block engine?

Accepted Answer

A remanufactured Caterpillar C12 long block includes the engine block, new pistons and rings, reground crankshaft, new bearings, camshaft, reconditioned cylinder head(s), timing components, new oil pump, and complete gasket set. Specifically, our Caterpillar C12 12.0L long block comes with: precision-reground crankshaft with new main and rod bearings, new or reground camshaft, cylinder head(s) that are resurfaced and pressure tested, new timing chain or belt with gears and tensioners, new lifters, new valve seals, new front and rear main seals, and new freeze plugs. Every component meets or exceeds OEM specifications.

Question 3

What are the most common problems with the Caterpillar C12 12.0L engine?

Accepted Answer

The most common Caterpillar C12 12.0L engine problems are injector o-ring failures causing fuel leaks, heui pump failures affecting fuel delivery, turbocharger wastegate issues, cylinder liner pitting from coolant contamination. These are well-documented failure points that affect many Caterpillar C12 engines in service. Our remanufacturing process specifically addresses each of these known issues by using updated components, improved gaskets, and enhanced machining techniques. When you purchase a remanufactured Caterpillar C12 long block from US Engine Production, these common problems have been corrected during the rebuild process, giving you a more reliable engine than a simple repair would provide.

Question 4

What warranty comes with a remanufactured Caterpillar C12 engine?

Accepted Answer

Every remanufactured Caterpillar C12 engine from US Engine Production comes with a comprehensive parts-and-labor warranty backed by over 40 years of remanufacturing experience. Our warranty reflects our confidence in the quality of our process — every Caterpillar C12 12.0L engine is dyno tested before shipping to verify horsepower, torque, oil pressure, and overall performance. Warranty terms may vary based on the specific application and whether the engine is for a commercial truck, pickup truck, or industrial application. Contact us at (631) 991-7700 for specific warranty details for your 2003 Freightliner FLD120.

Question 5

How long does a remanufactured Caterpillar C12 engine last?

Accepted Answer

A remanufactured Caterpillar C12 engine typically lasts 200,000 to 500,000+ miles with proper maintenance — comparable to a brand new engine. The longevity of your remanufactured Caterpillar C12 12.0L depends on regular oil changes, proper cooling system maintenance, using the correct fuel and fluids, and following the manufacturer's recommended service intervals. Our remanufactured long blocks are built to OEM specifications using all-new internal components, which is why they deliver the same service life as a factory-new engine.

Question 6

Is a remanufactured Caterpillar C12 better than a used or rebuilt engine?

Accepted Answer

Yes, a remanufactured Caterpillar C12 is significantly better than a used or rebuilt engine because every component is replaced or restored to OEM specifications. A used engine has unknown history and remaining life. A rebuilt engine only replaces worn-out parts. Our remanufactured Caterpillar C12 12.0L engines are completely disassembled down to the bare block, every component is cleaned and inspected, and all wear items are replaced with new parts — including pistons, bearings, gaskets, seals, timing components, and the oil pump. The engine block and crankshaft are precision machined to factory tolerances, delivering better reliability, longer life, and a stronger warranty than used or rebuilt alternatives.

Question 7

Will a remanufactured Caterpillar C12 fit my 2003 Freightliner FLD120?

Accepted Answer

Yes, our remanufactured Caterpillar C12 long block engines are built to be a direct, bolt-in replacement for the original engine in your 2003 Freightliner FLD120. We match the engine to your specific year, make, model, and configuration to ensure proper compatibility with your vehicle's emissions systems (EGR, DPF, SCR/DEF), engine management computer, wiring harness, and mounting points. When you call us at (631) 991-7700, our specialists will verify the exact engine configuration for your 2003 Freightliner FLD120 using your VIN to ensure a perfect match.

Question 8

Do I need to return my old Caterpillar C12 engine core?

Accepted Answer

Yes, a core return is required when purchasing a remanufactured Caterpillar C12 long block engine. A refundable core deposit is collected at the time of purchase and is returned to you once we receive your old Caterpillar C12 12.0L engine in rebuildable condition. We make the core return process easy and hassle-free. The core return program helps us keep remanufactured engine prices affordable by recycling engine blocks and other reusable components. Your old engine core should be complete and not have any cracked or damaged major castings.

Question 9

How fast can I get a remanufactured Caterpillar C12 engine shipped?

Accepted Answer

Most remanufactured Caterpillar C12 engines ship within 1-3 business days with delivery in 3-7 business days to all 50 states. For commercial and fleet customers who need to minimize downtime, we also offer expedited shipping options. Your remanufactured Caterpillar C12 12.0L engine is carefully crated and secured on a pallet for safe transport. Call (631) 991-7700 to check current availability and get an estimated delivery date for your 2003 Freightliner FLD120.

Question 10

How is a remanufactured Caterpillar C12 engine tested before shipping?

Accepted Answer

Every remanufactured Caterpillar C12 long block engine undergoes comprehensive quality testing before it leaves our facility. This includes dynamometer (dyno) testing to verify horsepower output, torque specifications, oil pressure readings, and overall performance meet or exceed OEM specifications for the Caterpillar C12 12.0L. We also perform compression testing across all cylinders, leak-down testing, cooling system pressure testing, and a thorough visual inspection. Our quality assurance process ensures that every remanufactured engine we ship performs like a factory-new Caterpillar C12 engine. We are committed to delivering engines that meet ISO 9001 quality standards.

2003 Freightliner FLD120 C12 12.0 Caterpillar Remanufactured Long Block Engine

About This Caterpillar C12 Remanufactured Long Block

Common Caterpillar C12 Problems We Address

Engine Specifications

Freightliner Vehicle Compatibility

What's Included With Your Remanufactured Long Block

Core Components

Timing Components

Valvetrain

Seals & Lubrication

Frequently Asked Questions: 2003 Freightliner FLD120 Caterpillar C12 Remanufactured Engine

What Our Customers Say

Warranty & Quality Assurance

Why US Engine Production?

Related Diesel Engines

More Freightliner FLD120 Engines

1990 Freightliner FLD120

1997 Freightliner FLD120

1992 Freightliner FLD120

2000 Freightliner FLD120

1999 Freightliner FLD120

2001 Freightliner FLD120

1990 Freightliner FLD120

2002 Freightliner FLD120

Vehicles with Caterpillar C12 Engine

2002 Freightliner Columbia

2001 Freightliner Argosy

1997 Freightliner FLL086

1999 International 9200 SBA

2001 Freightliner Century Class

2001 International 4900

1999 Freightliner Century Class

1999 Sterling Truck LT9500

More Freightliner Engines

2001 Freightliner FLD112

2005 Freightliner Coronado

2002 Freightliner FLD112

2003 Freightliner FLD132

2022 Freightliner M2 112

2023 Freightliner 108SD

2011 Freightliner Sprinter 3500

2013 Freightliner M2 112

More Caterpillar Engines

2004 Peterbilt 385

1984 Autocar C / DC

1996 Ford LS9000

1990 Ford LL9000

2008 Peterbilt 320

1991 Ford LN9000

1985 Ford CT8000

1981 Mack RD

Similar 12.0L DIESEL Engines

2001 Peterbilt 385

2002 International 5500i

2001 Sterling Truck Acterra 8500

2000 International 5500i

1997 Kenworth W900

2001 Sterling Truck AT9500

2000 Freightliner Century Class

2000 Freightliner FLD120

Recently Viewed Engines

2007 Chevrolet Silverado 3500 Classic

1988 Plymouth Reliant

2012 Ram 2500

1982 Western Star WSH

1987 Chevrolet P30

1985 GMC C3500

Related Searches

Buy Caterpillar C12 Remanufactured Long Block Engines