Remanufactured CAT C13 12.5L (762 ci) Engine For Sale
2003–2010 — 380–520 hp | 1,450–1,750 lb-ft
The Caterpillar C13 was introduced in 2003 as a lighter, more fuel-efficient alternative to the C15 for regional and vocational applications. With a displacement of 12.5 liters, the C13 offered an exc...
Starting from $7,000 – $13,000 — 1-Year Unlimited Mileage Warranty
CAT C13 Technical Specifications
About the Caterpillar C13 Engine
The Caterpillar C13 was introduced in 2003 as a lighter, more fuel-efficient alternative to the C15 for regional and vocational applications. With a displacement of 12.5 liters, the C13 offered an excellent power-to-weight ratio that made it popular in applications where the C15's 15.2 liters was more engine than needed. The C13 ACERT used Caterpillar's Advanced Combustion Emissions Reduction Technology to meet EPA emissions standards, featuring advanced fuel injection timing and in-cylinder combustion optimization. Horsepower ratings ranged from 380 to 520 hp with torque up to 1,750 lb-ft, making it suitable for both highway and vocational applications. The C13 was particularly popular in Peterbilt and Kenworth trucks configured for regional hauling, construction, and refuse applications. Like the C15, the C13 was discontinued when Caterpillar exited the on-highway market in 2010, but it remains well-supported with parts and service.
CAT C13 Strengths
- Excellent power-to-weight ratio — lighter than the C15 with strong performance
- Better fuel economy than the C15 in regional and vocational applications
- ACERT technology provides clean combustion with reduced emissions
- Versatile — suitable for highway, regional, vocational, and construction use
- Strong parts availability and dealer support network
- Compact design fits in a wider range of truck chassis configurations
Common CAT C13 Issues (Addressed in Our Remanufactured Engines)
- ACERT regeneration issues on 2007+ models with DPF can cause excessive downtime
- Injector failures on high-mileage engines lead to rough running and power loss
- Turbocharger failures, particularly on twin-turbo ACERT configurations
- EGR cooler leaks on emissions-equipped models cause coolant contamination
- Oil cooler housing gasket failures lead to external oil leaks
- Wiring harness chafing issues on some model years cause intermittent fault codes
Vehicles with the CAT C13
CAT C13 Buying Guide
When purchasing a remanufactured Caterpillar C13, identify the model year and emissions level. Pre-2007 C13 engines without DPF are simpler and generally more reliable. The 2007–2010 models with DPF offer higher power ratings but require more emissions maintenance. Verify the horsepower rating (380–520 hp) matches your truck's configuration. A quality remanufactured C13 should include new injectors, rebuilt turbo, new EGR components (if applicable), and a complete gasket set. The C13 shares many components with the C15, so parts availability is excellent.
Frequently Asked Questions — CAT C13
How much does a remanufactured Caterpillar C13 engine cost?
A remanufactured Caterpillar C13 engine typically costs between $13,500 and $15,000 depending on the model year, horsepower rating, and emissions configuration. Pre-2007 models without DPF are generally less expensive. All our CAT C13 engines are fully dyno tested and backed by our comprehensive warranty. Call (631) 991-7700 for an exact quote.
Is the CAT C13 a good engine?
Yes, the Caterpillar C13 is a solid engine that offers an excellent balance of power, fuel economy, and reliability. It's lighter than the C15 while still delivering up to 520 hp, making it ideal for regional hauling and vocational applications. The C13 shares much of its architecture with the proven C15, benefiting from Caterpillar's decades of diesel engineering expertise.
What are common Caterpillar C13 problems?
Common C13 issues include ACERT/DPF regeneration problems on 2007+ models, injector failures on high-mileage engines, turbocharger failures, EGR cooler leaks, and oil cooler housing gasket failures. Our remanufactured C13 engines address all known issues with updated components and thorough dyno testing.
What trucks use the Caterpillar C13 engine?
The Caterpillar C13 was installed in Peterbilt 386/384/367, Kenworth T660/T800/T470, Freightliner Columbia/Coronado, International ProStar, and Western Star trucks. It was popular in regional hauling, construction, refuse, and vocational applications where the C15 was more engine than needed.
What is the difference between CAT C13 and C15?
The C13 is a 12.5L engine producing 380–520 hp, while the C15 is a 15.2L engine producing 435–625 hp. The C13 is lighter and more fuel-efficient for regional and vocational use, while the C15 is designed for long-haul and heavy-haul applications requiring maximum power. Both use ACERT technology and share many components.
How many miles can a CAT C13 last?
A well-maintained Caterpillar C13 can last 500,000 to 750,000 miles before requiring a major overhaul. In less demanding vocational applications, some C13 engines have exceeded 800,000 miles. Regular maintenance including oil changes, coolant service, and valve adjustments is key to maximizing engine life.
Caterpillar Troubleshooting Guides
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ACERT vs pre-ACERT issues, injector failures, head gaskets, and oil pressure problems.
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Read Guide →Installation Guide
Step-by-step guide for installing your remanufactured engine.
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