Houston Engines | Used Auto Parts

Mon - Fri: 8am - 5pm, Sat - Sun: Closed

Used Auto Parts | Money Back Guarantee

6-36 Month Warranties

We Ship Local.
Hablamos Español.
Connect with
Houston Engines | Used Engines

Caterpillar C12 10.4L Reman Diesel Engine

Caterpillar C12 10.4L Reman Engine

Used Engines Inventory

Reman Engines Inventory

Diesel Engines Inventory

Caterpillar 3306 C D333C Reman Diesel Engine 10.4L

Caterpillar C12 engine

The 2012 Ford Powerstroke 6.7L Diesel Engine is a robust choice for heavy-duty applications, found in the 2012 Ford F250, F350, and F550 models. This turbocharged V8 engine delivers significant torque and horsepower, making it ideal for towing and hauling. Its design ensures both performance and efficiency, with a reputation for reliability and durability. Whether for work or recreation, the 6.7L Powerstroke handles demanding tasks with ease. For more details on its performance and specs, visit our 2012 F250 diesel engine page.

Reman Diesel Engine

Engine Overview

The Caterpillar C12 10.4L remanufactured diesel engine is celebrated for its durability and exceptional performance in heavy-duty applications. Featuring an inline-six configuration and a displacement of 10.4 liters with a 5.12-inch stroke, it delivers reliable power for diverse industrial and transportation needs. Initially designed for marine applications, the C12's robust construction and dependable performance have enabled its adaptation for trucks, construction equipment, and generators. This versatility, combined with Caterpillar’s renowned engineering excellence, makes the C12 a trusted choice for industries requiring a powerful and reliable engine to handle demanding tasks with efficiency and consistency.


The Caterpillar C12 engine provides a versatile range of horsepower ratings, from 345 to 497 mph, operating efficiently at 1,800 to 2,300 rpm. This flexibility makes it well-suited for various applications, including marine vessels, trucks, construction equipment, and generators. With its ability to deliver consistent power across a wide range of industries, the C12 ensures reliable performance even in demanding environments, making it a trusted choice for heavy-duty operations.

Caterpillar C12 engine

A key feature of the C12 engine is its electronically controlled unit injection fuel system, which optimizes fuel delivery for enhanced efficiency and lower operating costs. This advanced fuel system not only maximizes performance but also ensures compliance with stringent emission standards, contributing to a reduced environmental impact. Combining power, efficiency, and environmental responsibility, the Caterpillar C12 is engineered to meet the diverse needs of modern industries while maintaining Caterpillar’s reputation for durability and dependability.

Gas Engines | Diesel Engines | Hybrid Engines

Save With Our Large Inventory of Used Engines

Used Engines

Are you in the market for a used engine to get your vehicle back up and running? Look no further than Houston Engines. We offer a wide selection of high-quality, used engines at affordable prices. We pride ourselves on our commitment to customer satisfaction and provide a hassle-free shopping experience for all our clients.

Start by Selecting the Right Engine Type For You

Use the Part Request Tool to Narrow Down Your Vehicle

Use Our Auto Parts Search Tool

used gasoline engines

Gas Engines

used diesel engines

Diesel Engines

used hybrid engines

Hybrid Engines

Caterpillar C12 10.4L reman engine Applications

Caterpillar C12 engine

The Caterpillar C12 10.4L remanufactured engine is highly versatile, making it suitable for diverse applications such as marine propulsion, heavy-duty trucks, construction machinery, and power generation. Its ability to deliver reliable power across various industries highlights its adaptability and robust engineering.

With a compact design and proven performance, the C12 engine has become a preferred choice for operators seeking efficiency and dependability. Its balance of power and durability ensures consistent operation, even under demanding conditions, making it a trusted solution for heavy-duty needs.


Regular maintenance is essential for ensuring the longevity and peak performance of the Caterpillar C12 engine. Key practices include routine inspections of the fuel system to ensure optimal fuel delivery and combustion efficiency.

Timely oil changes are critical to maintaining proper lubrication and preventing premature wear on internal components. Regular monitoring of engine parts, such as the cooling system, air filters, and turbocharger, helps detect potential issues early and prevent costly downtime.

Using genuine Caterpillar parts during maintenance is vital to ensure compatibility and reliability, maintaining the engine’s high standards of performance. Access to professional service support further enhances maintenance efforts by providing expert care and detailed diagnostics. Adhering to a comprehensive maintenance schedule not only maximizes the engine’s operational life but also ensures it continues to deliver dependable performance

Fuel Economy

Caterpillar C12 engine

The Caterpillar C12 turbo diesel engine is engineered for exceptional fuel efficiency, providing operators with significant cost savings over its lifespan. Its advanced fuel injection system ensures precise fuel delivery, promoting optimal combustion and reducing fuel consumption, even during demanding operations.

Despite its focus on efficiency, the C12 maintains Caterpillar’s hallmark performance standards. Operators can rely on its robust power output without sacrificing economy, making it a dependable choice for industries that prioritize both productivity and cost-effectiveness.


With its robust power output and impressive fuel efficiency, the Caterpillar C12 turbo diesel engine strikes the perfect balance between performance and economy. Operators can depend on its reliable design to handle demanding tasks while minimizing operating costs. This combination of power and efficiency makes it an ideal choice for industries focused on maximizing productivity without compromising cost-effectiveness.

Reliability and Performance

The Caterpillar C12 10.4L remanufactured engine is built for reliability, making it a preferred choice for demanding applications. Its robust design ensures it can handle heavy loads while maintaining optimal performance. The engine’s durable components and advanced engineering contribute to its long lifespan, reducing the need for frequent repairs.

One of the standout features of the CAT C12 engine is its efficient fuel system. The electronically controlled unit injection fuel system optimizes fuel delivery, improving fuel economy and reducing emissions. This makes it an excellent choice for fleet operators and businesses looking to lower operating costs.

When properly maintained, the Caterpillar C12 can deliver consistent power for years. Regular maintenance, including oil changes and component inspections, helps ensure longevity. At Houston Engines, With the availability of remanufactured CAT C12 engines, operators can enjoy like-new performance at a fraction of the cost of a brand-new engine.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

What is the horsepower range of the Caterpillar C12 engine?

The CAT C12 engine offers horsepower ratings ranging from 345 to 497 mph, depending on the specific application and configuration.

What are the common applications of the Caterpillar C12 engine?

The Caterpillar C12 is commonly used in marine propulsion, heavy-duty trucks, construction machinery, and power generation due to its versatility and robust performance.

How does the electronically controlled unit injection fuel system benefit the C12 engine?

This system enhances fuel efficiency and ensures compliance with emission standards, contributing to the engine's environmental friendliness.

What is the displacement of the Caterpillar C12 engine?

The Caterpillar C12 has a displacement of 10.4 liters, providing substantial power for various applications.

What maintenance practices are recommended for the CAT C12 engine?

Regular maintenance, including timely oil changes and fuel system checks, is essential to ensure the engine's longevity and optimal performance.

Is the Caterpillar C12 engine suitable for marine applications?

Yes, the Caterpillar C12 is widely used in marine propulsion due to its reliability and efficiency.

What emission standards does the C12 engine comply with?

The Caterpillar C12 meets various emission standards, including EPA Tier 2 and IMO II, depending on the specific configuration.

How does the C12 engine's fuel economy benefit operators?

The engine's advanced fuel injection system reduces fuel consumption, offering cost savings over its operational lifespan.

What is the torque rating of the Caterpillar C12 engine?

The CAT C12 engine has a peak torque rating of 1,650 ft-lb at 1,200 rpm, with a torque rise percentage of 53%.

Where can I find parts for the Caterpillar C12 engine?

Genuine parts for the Caterpillar C12 engine are available through authorized dealers and specialized suppliers.

Used Engines Houston

Why Buy From Us?

We strive to be the ultimate destination for recycled auto parts. With access to a vast inventory and exclusive parts network, we offer millions of quality parts. We specialize in used engines and transmissions with new stock weekly. Our commitment to quality means that you can trust that you're getting the best possible part for your vehicle.

Used Auto Parts Satisfaction Guaranteed

30 Years In Business

Used Auto Parts Satisfaction Guaranteed

Largest Inventory In Houston

Used Auto Parts Satisfaction Guaranteed
Used Auto Parts Satisfaction Guaranteed

30 Years In Business

Used Auto Parts Satisfaction Guaranteed

Best Warranty Programs

Used Auto Parts Satisfaction Guaranteed

Largest Inventory In Houston

Best Warranty Programs

Used Engine
Used Transmission
used engines
used transmission

We Stock All Foreign and Domestic Vehicles

Get our latest news and promos

QUALITY ASSURED

Houston Engines Since 1989
Used Auto Parts Satisfaction Guaranteed

SATISFACTION GUARANTEED

Used Auto Parts Satisfaction Customer Support

UNPARALLELED SUPPORT

Used Auto Part Payments American Express
Used Auto Part Payments Discover
Used Auto Part Payments PayPal
Used Auto Part Payments Visa

Ship Used Auto Parts Fedex
Ship Auto Parts | USPS

Ship Used Auto Parts Fedex
Ship Used Auto Parts USPS
Houston Engines | Member of TARA
Houston Engines | Member of URG
Houston Engines | Automotive Recyclers Association

Houston Engines | Used Auto Parts
Houston Engines | Used Auto Parts

© 2025 Houston Engines | All Rights Reserved | Sitemap