1997 Peterbilt 377 C12 12.0 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar C12 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 1997 Peterbilt 377? US Engine Production offers premium remanufactured Caterpillar C12 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 C12 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar C12 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
Peterbilt Vehicle Compatibility
Caterpillar C12 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: 1997 Peterbilt 377 Caterpillar C12 Remanufactured Engine
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 1997 Peterbilt 377. 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 1997 Peterbilt 377, 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
"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."
"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."
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 C12 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 377 Engines
Other model years available for the Peterbilt 377
1999 Peterbilt 377
Caterpillar C10 10.3L
2001 Peterbilt 377
Caterpillar C12 12.0L
1993 Peterbilt 377
Caterpillar 3176 10.3L
1991 Peterbilt 377
Cummins L10 10.0L
1988 Peterbilt 377
Caterpillar 3306 10.5L
1992 Peterbilt 377
Cummins N14 14.0L
1996 Peterbilt 377
Caterpillar 3406 14.6L
1993 Peterbilt 377
Detroit Diesel Series 60 12.7L
Vehicles with Caterpillar C12 Engine
This same engine is also available for these vehicles
2006 Freightliner Condor
C12 12.0L DIESEL
2001 International 8100
C12 12.0L DIESEL
1998 Ford AT9513
C12 12.0L DIESEL
2002 Freightliner FLD120
C12 12.0L DIESEL
2000 International 9900i
C12 12.0L DIESEL
1999 Peterbilt 357
C12 12.0L DIESEL
2004 American LaFrance ALF Eagle
C12 12.0L DIESEL
1999 Sterling Truck LT9500
C12 12.0L DIESEL
More Peterbilt Engines
Browse other Peterbilt models with remanufactured engines
1988 Peterbilt 375
Cummins L10 10.0L
1997 Peterbilt 385
Caterpillar C12 12.0L
2001 Peterbilt 387
Cummins ISX 15.0 15.0L
1992 Peterbilt 379
Detroit Diesel Series 60 12.7L
2001 Peterbilt 379
Detroit Diesel 12V71 14.0L
1997 Peterbilt 379
Caterpillar 3126 7.2L
2023 Peterbilt 389
Cummins ISX 11.9 11.9L
2008 Peterbilt 335
PACCAR PX-6 6.7L
More Caterpillar Engines
Explore other Caterpillar engine models we carry
2007 Chevrolet C6500 Kodiak
Caterpillar C7 7.2L DIESEL
1989 Ford LN8000
Caterpillar 3208 10.4L DIESEL
1987 Ford L9000
Caterpillar 3406 14.6L DIESEL
2005 Chevrolet C8500
Caterpillar 3126 7.2L DIESEL
2006 Freightliner M2 112
Caterpillar C13 12.5L DIESEL
2008 GMC C7500 Topkick
Caterpillar C7 7.2L DIESEL
1988 Kenworth T600A
Caterpillar 3408 18.0L DIESEL
2001 Crane Carrier Low Entry
Caterpillar 3116 6.6L DIESEL
Similar 12.0L DIESEL Engines
Other diesel engines with similar specifications
1997 Freightliner Century Class
Detroit Diesel Series 55 DIESEL
1998 Ford L9511
Caterpillar C12 DIESEL
1998 Freightliner FLD112
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2003 International 9900i
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2004 Freightliner FLD120
Caterpillar C12 DIESEL
2004 International 9400i SBA
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2004 Western Star 4900FA
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2002 International 2574
Caterpillar C12 DIESEL
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Buy Caterpillar C12 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our C12 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 1997 Peterbilt 377or 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
