Used Powertrain Warranties up to 36 Months / 36K Miles

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

6-36 Month Warranties

See Warranty Options Here

(888) 521-6162

We Ship Local.
Hablamos Español.

Connect with

Caterpillar C3408 HEUI 18L Reman Diesel Engine

Caterpillar C3408 HEUI 18L Reman Engine

Used Engines Inventory

Reman Engines Inventory

Diesel Engines Inventory

Heavy-duty performance and torque you can trust

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

Heavy-duty performance and torque you can trust

The Caterpillar C3408 is an 18L V8 diesel engine built to handle tough industrial applications. Featuring a reliable HEUI fuel system, this remanufactured unit delivers consistent performance and strong fuel efficiency. Commonly used in marine, drilling, and power generation, the rebuilt 3408 excels in continuous-duty environments. It’s known for producing high torque under load, making it ideal for demanding sectors like energy, construction, and offshore operations. With proven durability and performance, the reman CAT C3408 engine is a trusted solution where uptime and reliability are essential.

The HEUI system in the Caterpillar C3408 combines hydraulic actuation with electronic control, allowing for more precise combustion and reduced fuel waste.

This advanced fuel delivery system, combined with the engine’s durable 18L block, ensures consistent high-torque performance under demanding conditions. The C3408’s torque characteristics make it especially effective for handling heavy startup loads and powering PTO-driven machinery or continuous-duty industrial operations.

When evaluating high-displacement diesel engines for tough environments, the C3408 stands out for its reliability and performance. For comparison, the Cummins ISX 15L is another strong contender for heavy-duty use. Like the C3408, it’s built for longevity and power, making it a solid alternative for those seeking dependable performance across a variety of applications. You can explore more about the Cummins ISX 15L here. Whether you choose Caterpillar or Cummins, both engines are engineered for long service life and consistent output.

Gas Engines | Diesel Engines | Hybrid Engines

Save With Our Large Inventory of 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

Gas Engines

Diesel Engines

Hybrid Engines

Industrial engine specs built for demanding applications

The CAT C3408 HEUI engine is built with a cast iron block, wet sleeve liners, and a robust crankshaft, ensuring long-lasting durability. It’s ideal for demanding applications such as offshore vessels, pump stations, and generator sets that require continuous operation.

For those seeking similar performance in a more compact engine, the Detroit Series 60 12.7L offers reliable power and efficiency. It’s a strong alternative for industrial settings. Learn more here.

Each 18L Caterpillar reman diesel engine is meticulously rebuilt using OEM-grade parts, ensuring excellent performance and reliability. Key components like heads, pistons, injectors, and turbochargers are carefully inspected and replaced as needed during the remanufacturing process.

This results in a trusted engine that minimizes downtime and provides operators with a cost-effective alternative to purchasing a brand-new unit.

For those in need of a reliable diesel engine in high-demand applications, the Duramax 6.6L is another great option. Commonly used in fleet and commercial vehicles, the Duramax is smaller in size but built to perform under tough conditions. Despite its compact design, it offers impressive durability and reliability for demanding environments. Whether you choose the CAT 18L or the Duramax 6.6L, both engines deliver solid performance at a fraction of the cost of new engines. Learn more about the Duramax 6.6L here.

Fuel system technology enhances efficiency and performance benefits

The HEUI fuel system uses high-pressure oil to control injectors electronically, ensuring precise timing. This setup enhances fuel control while reducing emissions, making it an efficient option for modern engines.

Compared to more complex injection technologies, the HEUI system is easier to service and replace. This simplicity and reliability make remanufactured CAT C3408 models a popular choice for operators in fleets or fixed installations, offering both cost-effectiveness and ease of maintenance.

The combination of hydraulic and electronic control provides cleaner combustion and reduces injector wear. This makes it ideal for long-hour use in rugged conditions, enhancing engine efficiency and longevity. The system ensures optimal performance in harsh environments, minimizing maintenance while maximizing reliability, making it well-suited for demanding applications in tough settings.

Rebuilt to meet OEM-quality standards and specifications

Each remanufactured Caterpillar C3408 engine is rebuilt to strict OEM-quality standards. The process starts with complete disassembly, followed by thorough cleaning and precision machining. Key components like the cylinders are honed, heads are pressure tested, and crankshafts are inspected to ensure they meet exact factory tolerances.

Once reassembled, each engine is dyno-tested under load to confirm it meets OEM power curves and Caterpillar C3408 maintenance requirements. This quality assurance process guarantees that the engine will perform reliably and efficiently in demanding field conditions, just like a new unit.

The C3408 offers lower lifecycle costs, fewer failures, and longer service intervals than other diesel platforms. For gasoline needs, the GM 5.3L V8 may be a fit, based on usage. Unsure which engine suits your application? Contact us for expert help choosing the right solution.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

What is the horsepower range of the CAT C3408?

The Caterpillar C3408 engine typically delivers between 440 and 540 horsepower, depending on configuration.

What is the torque rating of this engine?

It can produce torque ratings in excess of 1,600 lb-ft, ideal for heavy-load startup and continuous operation.

What is the HEUI system?

HEUI stands for Hydraulic Electronic Unit Injector—a system that uses pressurized oil and electronic controls for fuel injection.

What’s the displacement of the C3408?

The engine has a displacement of 18 liters and is built for industrial use.

Is this engine suitable for marine applications?

Yes, the CAT C3408 is widely used in tugboats, barges, and offshore vessels.

What industries typically use the C3408 HEUI?

It’s found in oilfield services, marine propulsion, industrial pumps, and generators.

How is a reman engine different from rebuilt?

Remanufactured engines are restored to OEM specs using new and machined parts; rebuilt engines may reuse more original parts.

What warranty is available for this reman engine?

Warranties vary by supplier, but Houston Engines offers a strong limited warranty on reman units.

What fuel efficiency can I expect?

While not the most fuel-efficient engine, the HEUI system offers better control and cleaner combustion than older mechanical systems.

How do I maintain this engine?

Routine CAT C3408 maintenance includes oil and filter changes, injector inspection, and HEUI system checks for consistent performance.

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.