CAT C12 ACERT Marine Engine
€49,500.00
Explore More CAT C12 ACERT Marine Inboard Engine Today: Caterpillar C12.9 Marine Engine
- Description
Description
CAT C12 ACERT Marine Inboard Engine — Proven Power with Professional Support from Seawave Marine
Trusted Caterpillar Performance for Commercial and Recreational Vessels
For over two decades, Seawave Marine has supplied, installed, and serviced Caterpillar marine propulsion systems for operators worldwide.
The CAT C12 ACERT Marine Inboard Engine continues this legacy of reliability — delivering high power output, smooth operation, and reduced emissions through Caterpillar’s ACERT™ Technology.
Whether powering a fishing trawler, yacht, or commercial workboat, the C12 ACERT combines engineering precision with real-world dependability, making it one of the most respected engines in its class.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Model | CAT C12 ACERT Marine Inboard Engine |
| Configuration | Inline 6-Cylinder, 4-Stroke Diesel |
| Displacement | 12.0 L (732 in³) |
| Bore × Stroke | 130 mm × 150 mm (5.1 × 5.9 in) |
| Power Range | 660 – 705 bhp (492 – 526 bkW) |
| Rated Speed | 2,300 RPM |
| Aspiration | Turbocharged-Aftercooled (TA) |
| Emissions Compliance | IMO II Certified |
| Rotation (Flywheel End) | Counter-Clockwise |
| Cooling System | Heat Exchanger / Keel Cooled |
| Electrical System | 12 V / 24 V |
| Dry Weight | 2,588 lb (1,174 kg) |
| Dimensions (L × W × H) | 62 × 38.1 × 39.5 in |
All specifications verified against official Caterpillar documentation.
⚓ Key Benefits
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Cleaner Operation: ACERT™ combustion management reduces visible smoke and emissions.
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Improved Efficiency: Optimized injection timing and turbocharging enhance fuel economy.
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Reliable Power Delivery: Strong mid-range torque ensures consistent propulsion even in demanding sea states.
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Simplified Maintenance: Easy access to filters and service points shortens downtime.
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Worldwide Service Network: Backed by Seawave Marine and Caterpillar’s global dealer infrastructure.
🧠 Expert Insights from Seawave Marine Engineers
“In real installations aboard crew and patrol vessels, the C12 ACERT performs with exceptional stability and quietness. Its balance between fuel efficiency and torque output is why we recommend it for medium-displacement hulls.”
— A. Reyes, Senior Marine Engineer, Seawave Marine
Our engineering team has over 20 years of hands-on experience commissioning and servicing Caterpillar C-series engines, including the C9, C12, and C18. This first-hand expertise ensures every engine we deliver is tuned for maximum performance and longevity.
🛡️ Warranty and After-Sales Support
Every CAT C12 ACERT supplied by Seawave Marine includes:
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12-Month / 1,000-Hour Caterpillar Warranty (whichever occurs first)
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Optional Extended Service Coverage up to 3 years / 5,000 hours
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Authorized Installation Certification for warranty validation
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24 / 7 Technical Assistance and Parts Availability
Our customers receive full Caterpillar C12 ACERT Marine Engine Manuals and service records for long-term maintenance tracking.
❓ Frequently Asked Questions
Q1: What is a C12 Cat engine?
The C12 is a 12-liter inline-six diesel designed for heavy-duty marine applications. The C12 ACERT adds advanced electronics and cleaner emissions compared with earlier versions.
Q2: How much horsepower does a CAT C12 marine engine have?
Depending on configuration, the C12 ACERT delivers 660 – 705 bhp, offering outstanding power-to-weight performance.
Q3: Is a CAT C12 engine a good engine?
Yes. The C12 ACERT is widely respected for its durability, fuel efficiency, and low vibration — making it a favorite for both commercial operators and private owners.
Q4: What is the life expectancy of a CAT C12 engine?
With proper maintenance, these engines often exceed 15,000 to 20,000 hours before major overhaul.
Q5: What’s the difference between C12 and C13?
The C13 has slightly higher displacement (12.5 L) and horsepower, while the C12 ACERT provides a lighter, more compact alternative suited to repowers or smaller engine bays.
Q6: Are there known C12 ACERT problems?
When maintained correctly using genuine Cat parts, reliability issues are rare. Most reported concerns stem from poor fuel quality or skipped maintenance.
Q7: How much does a CAT C12 ACERT cost?
Prices vary by rating, configuration, and region. Seawave Marine offers competitive CAT C12 ACERT marine engine prices with full installation and commissioning packages.





