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Caterpillar 3406C 14.6L Reman Diesel Engine

Caterpillar 3406C 14.6L Reman Engine

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Engineered to Withstand Heavy-Duty Workloads

Caterpillar 3406C 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

Engineered to Withstand Heavy-Duty Workloads

The CAT 3406C 14.6L engine is designed to tackle the most demanding jobs, making it a trusted option for off-road equipment, marine vessels, and long-haul trucks. Known for its durability and consistent power, this remanufactured model features enhanced 3406C torque specs that allow it to perform exceptionally well under pressure. Its ability to deliver strong low RPM power makes it highly efficient for fuel-sensitive applications. Whether you're navigating tough terrain or covering long distances, the CAT 3406C offers reliable, high-output performance built for heavy-duty demands.

Every rebuilt CAT 3406C engine is pressure tested and hot-run to guarantee smooth integration and reliable performance from day one. These rigorous quality checks ensure consistent power output and long-lasting durability across a wide range of applications.

Caterpillar 3406C engine

One of the key advantages of the 3406C is its serviceability—maintenance remains affordable thanks to widely available parts and straightforward repair procedures. This makes it a practical choice for operators who prioritize uptime and cost-efficiency. For those seeking more choices, we also carry a wide selection of remanufactured diesel engines for Caterpillar equipment.

If reducing downtime is a top priority, choosing a Caterpillar engine overhaul like the 3406C is a smart investment. These remanufactured engines deliver OEM-level performance without the steep costs of a new engine. And if your fleet runs on multiple platforms, we also offer fully remanufactured Cummins 6CTA 8.3L engines.

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Trusted CAT 3406C Performance Built to Last

Caterpillar 3406C engine

Reliability is a core trait of the 3406C series. These engines are known for their ability to run consistently under intense workloads. The Caterpillar 3406C 14.6L engine is no exception—it offers fuel efficiency, reduced emissions (when upgraded to latest specs), and minimal vibration.

From high-mileage fleets to marine vessels, this heavy-duty CAT diesel engine has proven its long-term viability. For similar performance in a smaller form factor, review our reman diesel engine page.


Each CAT 3406C 14.6L remanufactured diesel engine is carefully reconditioned to meet or surpass original factory specifications, ensuring dependable performance in demanding environments.

Engine highlights include six in-line cylinders, turbocharging, and a 14.6-liter displacement. Depending on the application and setup, the standard output ranges between 350 and 550 horsepower, making it a versatile powerplant for various heavy-duty uses.

Maintaining your CAT 3406C engine is key to maximizing its service life. Routine tasks such as oil changes, fuel filter replacements, and valve adjustments are straightforward, affordable, and essential for preserving long-term reliability. These simple maintenance steps help keep your engine running smoothly under load while minimizing the risk of unexpected issues. If you're looking for compatible options or specific applications, be sure to explore our used diesel engines inventory for more CAT 3406C models and other power solutions.

Efficient fuel use ensures longer engine life span

Caterpillar 3406C engine

The 3406C engine delivers impressive fuel efficiency, thanks to its advanced combustion design and reduced internal friction. These features enable the engine to run longer on each gallon of fuel, improving overall performance while minimizing waste.

When operators apply proper load balancing and maintain optimal RPM levels, fuel consumption decreases even further. Over time, this combination significantly lowers operating costs, boosts efficiency, and makes the 3406C a smart investment for long-term performance.


The engine’s design reduces internal wear and streamlines overhaul procedures, allowing for longer service intervals and less frequent maintenance. This simplicity not only extends the engine’s operational life but also helps lower labor and downtime costs. Over time, operators benefit from improved reliability, reduced maintenance demands, and overall cost savings throughout the equipment’s lifespan.

Streamlined engine overhaul ensures reliable, long-term support

Each remanufactured 3406C diesel engine undergoes a comprehensive overhaul process, including cylinder head reconditioning, crankshaft polishing, and injector testing. We use genuine or OEM-matching components to ensure complete compatibility and exceptional durability, restoring the engine to factory-grade standards.

Our remanufactured engines are not just refurbished—they’re meticulously rebuilt to perform in demanding environments, providing reliability and power for heavy-duty operations. Our in-house technicians follow strict quality control protocols throughout the rebuild process, ensuring each engine meets the highest performance standards.

Whether you’re replacing a blown engine or upgrading an older system, our remanufactured 3406C engines come with nationwide shipping and optional core returns for quicker turnaround times. This makes it easier than ever to get a high-quality engine that meets your operational needs. For more details or expert assistance, please contact Houston Engines.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQ)

What is the horsepower range for the Caterpillar 3406C 14.6L?

Horsepower typically ranges between 350 to 550 HP, depending on the configuration and intended use.

Is this a long block or complete drop-in engine?

The reman 3406C is available as a complete drop-in engine, including essential components for installation.

What vehicles or equipment are compatible with the CAT 3406C?

This engine fits various heavy-duty trucks, marine vessels, and construction equipment.

Does this engine meet current emissions standards?

While not Tier 4 compliant, upgraded versions may offer reduced emissions through aftermarket kits.

Is the 3406C a turbocharged engine?

Yes, it features a turbocharged inline-6 design for optimized power delivery and torque.

What’s the difference between a rebuilt and remanufactured 3406C?

Remanufactured engines are restored to OEM specs, while rebuilt engines may reuse more original parts.

How often should the 3406C undergo maintenance?

Regular intervals include oil changes every 250 hours and valve adjustments every 1,000 hours.

Can I get a warranty with this engine?

Yes, all remanufactured 3406C engines include a limited-time warranty based on mileage or hours.

What is the torque output of the 3406C?

Torque varies by setup but often falls between 1,350–1,850 lb-ft.

How long does it take to receive the reman engine after ordering?

Delivery typically takes 5–10 business days, depending on inventory and location.

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