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Caterpillar 12L 10.4L Reman Diesel Engine

Caterpillar 12L 10.4L Reman Engine

Used Engines Inventory

Reman Engines Inventory

Engineered for tough, heavy-duty performance and reliability

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

Engineered for tough, heavy-duty performance and reliability

The Caterpillar 12L 10.4L reman diesel engine is specifically built for commercial and industrial applications, offering reliable torque and enduring performance. Completely rebuilt from the block up, this engine provides robust power for heavy machinery, stationary generators, and marine uses. Designed to meet the demanding needs of tough environments, it ensures high uptime and consistent operation. The Caterpillar reman engine comes with a warranty, making it a trusted replacement for aging CAT units. This 12L engine is ideal for operators seeking reliable, long-lasting power for challenging work conditions.

Every 10.4L diesel engine rebuild begins with a comprehensive teardown and thorough inspection to assess the condition of all components. Each part is meticulously cleaned, machined, and tested to meet exact factory specifications.

Critical components, including pistons, cylinder heads, and injectors, are either replaced or rebuilt to OEM standards, ensuring the engine performs just like the original Caterpillar 12L design. This precision in rebuilding minimizes wear and extends operating hours in demanding environments.

After the rebuild, each engine undergoes dyno testing to verify its torque output and performance reliability under load. This rigorous testing process ensures that the engine meets the demands of real-world applications. Many operators opt for this rebuild over newer, more complex platforms, valuing the reliability and simplicity of the Caterpillar 12L engine. For a comparison, consider our reman Cummins 5.9L diesel engine when evaluating mid-size industrial engines.

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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.

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Consistent torque, reduced maintenance for lasting performance

The rebuilt 12L Caterpillar engine produces consistent torque across long work cycles. Built for uptime, this engine helps reduce unscheduled downtime thanks to simplified servicing and predictable maintenance intervals.

Ideal for users in heavy-load applications, the CAT 10.4L reman diesel provides performance without the electronics-heavy issues of newer models. Explore similar diesel builds, including the Isuzu 4HK1 reman engine, for reliable mid-range power and versatile equipment compatibility.

The 12L engine, with its mechanical and HEUI injection systems, offers easier maintenance compared to fully electronic systems.

This makes it ideal for demanding applications like mining, drilling, or water pumps, where equipment must run continuously for long hours without failure. The simplicity of its design allows for quick repairs in the field, ensuring minimal downtime.

Additionally, the 12L is a great fit for older equipment that remains structurally sound but requires a reliable power source. If you need assistance matching the 12L engine to your existing setup, our team can help verify compatibility and recommend any necessary components, such as a remanufactured Allison transmission. We offer expert advice and quality parts to ensure your equipment continues to perform at its best.

Proven reliability, versatile performance in tough conditions

The Caterpillar 12L engine is known for its proven performance in various industries, including energy, agriculture, and marine support. It’s especially valued in remote applications where parts and service must be minimal and reliability is critical.

This 10.4L engine is part of our broader lineup of industrial diesel CAT engines, all designed for durability and efficiency, and each backed by expert technical support and a comprehensive warranty program.

Our high quality engines are available for freight shipping or in-shop installation. Contact our team for more information on custom fitment options and load testing. We’re here to ensure your equipment performs at its best, and we can assist with all aspects of installation, fitment, and testing to meet your specific needs.

Why Operators Trust the 12L/10.4L Rebuild

The remanufactured CAT 12L engine stands out for its durability and simplicity. Built for work environments where engines are pushed for hours, it offers consistent torque without relying on sensitive electronics or costly sensors. Its mechanical reliability makes it ideal for operations that demand minimal downtime and straightforward maintenance.

The 10.4L engine is also popular for rebuilds due to its adaptable design. With proper fitment, it drops into many older CAT units without needing costly modifications. This makes it a cost-effective option for equipment upgrades or replacements where full replacements aren’t viable or within budget.

For mixed fleets, it pairs well with larger or smaller builds, including GM Duramax diesel options. If you're trying to balance cost, downtime, and long-term serviceability, the 12L rebuild is a solid investment.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

What is the displacement of the Caterpillar 12L engine?

The engine has a 12-liter (10.4L actual) displacement, built for heavy-duty use.

What is the fuel system type on this engine?

It typically uses a mechanical or HEUI injection system, depending on the year.

Is this a drop-in replacement for older CAT engines?

Yes, with proper fitment, it works in many older CAT applications.

Do reman engines come with a warranty?

Yes, all Caterpillar reman engines come with a limited parts and labor warranty.

What industries typically use this engine?

Common uses include construction, marine, power generation, and agriculture.

Can this engine run on biodiesel blends?

Yes, depending on build spec, it may support approved biodiesel blends.

Is dyno testing included?

Yes, every engine is dyno-tested under load before shipment.

How do I check compatibility with my machine?

Our team can assist—start by visiting our engine installation services.

Can I get this engine shipped internationally?

Yes, we offer domestic and international freight options.

Where can I request a quote or check availability?

Visit our Request a Quote page to get started.

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.