Caterpillar 1500 kW diesel generator, CAT 3512C engine, 591 Hrs, Yr 2009 – CSDG # 4720

When it comes to industrial power generation, few names carry the weight and reliability of Caterpillar. The Caterpillar 3512C diesel generator represents decades of engineering excellence, delivering robust performance for mission-critical applications. At Central States Diesel Generators, we’re excited to showcase our current inventory of used 3512C units, including a standout model with just 591 hours and EPA Tier 2 certification that’s ready to ship today.

Why Caterpillar Dominates the Generator Market

Caterpillar has been setting the gold standard in heavy equipment and power generation for nearly a century. Their reputation isn’t just built on marketing – it’s earned through consistent performance in the world’s most demanding environments. From construction sites in the scorching desert to backup power systems in critical healthcare facilities, Cat generators have proven their worth time and again.

What sets Caterpillar apart is their commitment to innovation and durability. Every generator that rolls off their production line undergoes rigorous testing and quality control processes. The company’s global service network means that no matter where your generator is installed, expert support and genuine parts are never far away. This combination of reliability, performance, and support has made Caterpillar the go-to choice for industries that simply cannot afford power failures.

The 3512C: Engineering Excellence in Action

The Caterpillar 3512C isn’t just another generator – it’s a powerhouse designed for serious applications. At the heart of this machine lies a robust V-12, 4-stroke water-cooled diesel engine with electronic unit injection technology. This sophisticated fuel delivery system ensures optimal combustion efficiency while minimizing emissions, making it both powerful and environmentally responsible.

With a displacement of 51.8 liters and a compression ratio of 14.7:1, the 3512C delivers impressive power output ranging from 1230 kW to 1750 kW depending on configuration. Most units operate at 1800 rpm, providing the perfect balance of power delivery and engine longevity. The turbocharged aspiration system ensures consistent power output even under varying load conditions.

The engine features Caterpillar’s advanced ADEM A3 governor technology, which provides precise power control and monitoring capabilities. This electronic control system continuously monitors engine parameters, ensuring optimal performance while protecting against potentially damaging operating conditions.

Technical Specifications That Matter

Let’s dive into the numbers that make the 3512C such a reliable choice. The standard configuration delivers 1500 kW standby power and 1360 kW prime power ratings, with the engine producing between 1818 to 2206 horsepower depending on the specific model variant.

The generator offers flexible voltage options ranging from 380 to 13800 volts, making it suitable for a wide variety of electrical system configurations. Most commercial and industrial applications utilize the common 277/480V or 600V configurations, ensuring compatibility with existing electrical infrastructure.

Physical dimensions are substantial but manageable, measuring approximately 222 inches in length, 90 inches in width, and 104 inches in height for the base generator set. The dry weight of around 29,000 pounds reflects the robust construction, though complete packages with enclosures and fuel systems can weigh significantly more.

Our Featured 3512C: Low Hours, High Value

The specific unit we’re highlighting exemplifies why used Caterpillar generators represent such excellent value. This 2009 model with only 591 hours shows how well these machines hold their value and performance over time. With EPA Tier 2 emissions certification, this generator meets current environmental standards while delivering the reliable power you expect from Caterpillar.

This particular unit comes equipped with a sound-attenuated enclosure, making it suitable for installations where noise control is important. The included 750 kW radiator-mounted load bank provides convenient testing capabilities, while the massive 2500-gallon UL-listed sub-base fuel tank with secondary containment ensures extended runtime without refueling.

What really sets this unit apart is its recent performance validation – it successfully passed comprehensive load testing in August 2025, confirming that all systems are operating within specifications. At 85,000 pounds total weight with its complete package, this is a serious piece of equipment ready for serious applications.

The Smart Economics of Used Cat Generators

Purchasing a used Caterpillar 3512C makes solid financial sense for many applications. These generators are built to last for decades, meaning a well-maintained used unit can provide many years of reliable service at a fraction of new equipment cost. The robust construction and high-quality components mean that even units with moderate hours still have substantial operational life remaining.

Consider that diesel generators often run only during power outages or scheduled testing, accumulating relatively few operating hours over their lifespan. A generator with 500-1000 hours might be 10-15 years old but still have 80-90% of its useful life ahead of it. This represents exceptional value for businesses that need reliable backup power but want to optimize their capital expenditure.

Configuration Options and Features

Modern used 3512C generators come with various configuration options to match specific installation requirements. Sound-attenuated enclosures reduce noise levels for installations in populated areas or where noise ordinances apply. These weatherproof enclosures also protect the generator from environmental elements, extending equipment life.

Integrated fuel systems range from basic day tanks to massive capacity systems like the 2500-gallon configuration mentioned earlier. Larger fuel systems enable extended runtime during prolonged power outages, crucial for critical facilities that cannot risk fuel depletion during emergencies.

Digital control systems like the EMCP 3.3 provide comprehensive monitoring and control capabilities. These systems continuously monitor engine parameters, automatically start the generator during power outages, and provide detailed operational data for maintenance planning and regulatory compliance.

Additional features often include battery chargers for reliable starting, dual coolant heaters for cold weather operation, and various electrical configurations to match facility requirements. Generator ends from respected manufacturers like Kato are commonly paired with Cat 3512C engines, ensuring reliable electrical output.

Emissions Compliance and Certifications

Environmental compliance is increasingly important for stationary power generation equipment. Most used 3512C generators available today meet EPA Tier 2 emissions standards, making them compliant for emergency power applications throughout the United States. This certification ensures the generators can legally operate as backup power sources for critical facilities.

Many units also carry UL 2200 listing, demonstrating compliance with rigorous safety standards for stationary engine generator assemblies. This certification is often required by local building codes and insurance companies, particularly for installations in healthcare facilities, data centers, and other critical applications.

Our Inventory: Ready When You Are

At Central States Diesel Generators, we maintain a rotating inventory of quality used Caterpillar 3512C generators. Beyond the featured 591-hour unit, we regularly stock additional models with varying hours, configurations, and specifications. Our inventory includes both open power units for indoor installations and complete packaged systems with enclosures and fuel systems.

Each generator in our inventory undergoes thorough inspection and testing before being offered for sale. We verify operational parameters, check emission compliance, and ensure all safety systems function properly. This attention to detail gives our customers confidence they’re purchasing equipment that will perform reliably from day one.

Our experienced team understands that every application has unique requirements. Whether you need a generator for emergency backup power, prime power in remote locations, or continuous duty applications, we can help match you with the right equipment configuration.

Nationwide Shipping and Support

One of the biggest advantages of working with Central States Diesel Generators is our ability to ship equipment nationwide. We have established relationships with specialized heavy equipment transport companies, ensuring your generator arrives safely and on schedule. Our shipping partners understand the unique requirements of moving large generators and provide appropriate equipment and handling procedures.

We also provide support beyond the initial sale. While these are used generators, we can often arrange extended warranty coverage and connect you with qualified service providers in your area. Our goal is to ensure your Caterpillar generator provides years of reliable service.

Making Your Decision

The combination of Caterpillar’s legendary reliability, the robust design of the 3512C platform, and the economic advantages of purchasing used equipment creates a compelling value proposition. Whether you’re replacing aging backup power equipment, expanding facility capacity, or establishing power generation capability at a new location, a used Cat 3512C deserves serious consideration.

The specific 591-hour unit we’ve highlighted represents an exceptional opportunity to acquire low-hour equipment at used equipment pricing. With EPA Tier 2 compliance, comprehensive accessories, and recent load testing validation, this generator is ready to provide immediate reliable service.

Ready to explore your options? Contact Central States Diesel Generators today to discuss your power generation requirements and learn about our current inventory of Caterpillar 3512C generators. Our knowledgeable team can provide detailed specifications, arrange inspections, and coordinate shipping to your location. Don’t wait – quality used generators move quickly in today’s market.

Call us now or visit our website to discover how a used Caterpillar 3512C can provide the reliable power your operation demands. With our inventory ready to ship and financing options available, there’s never been a better time to upgrade your power generation capabilities.