The 3512E marine auxiliary engine is now available in a wide range of ratings that meet U.S. EPA Tier 4 Final and IMO III marine emissions regulations. As the commercial marine industry adjusts their operations to meet U.S. EPA Tier 4 Final and IMO III emissions standards, Caterpillar Marine has introduced a solution built to maximize performance while meeting regulations. Caterpillar’s combination of a fuel-efficiency-optimized engine and a selective catalytic reduction (SCR) aftertreatment system is a solution that not only reduces NOx emissions, but can also lower a customer’s owning and operating costs in the process.
Features
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Emissions
Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs, IMO III emissions compliant
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Utilizes closed loop air assisted DEF dosing control strategy
Highest efficiency mixing and control to lower operational costs, extends emissions useful life, ensures compliance, flexibility regarding urea quality
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Advanced Engine Combustion Design
Advanced engine combustion design process utilizing optimum configurations and cylinder geometry for maximum engine efficiency
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Enhanced control of fuel injection
Enhanced control of fuel injection optimized through crank timing and thelatest A5 ECM technology
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Enhanced Fuel Delivery
Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery
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Increased Durability and Higher Engine Duty Cycle Capability
Strengthened cylinder heads and valves for increased durability and peak cylinder pressure capability resulting in higher engine duty cycle capability
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Caterpillar Warranty
Industry-leading warranty coverage for factory packaged components
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Global Dealer Network
No matter where or when, our extensive global dealer network is ready to provide support.
Specifications
Units for specifications
Power Rating
| Power Range | 1263 - 1789 bkW |
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Generator Set Specifications
| Frequency | 50 / 60 |
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Engine Specifications
| Emissions | U.S. EPA Tier 4, IMO II/III |
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| Configuration | V 12, 4-Stroke-Cycle Diesel |
| Displacement | 3574.0 in³ 58.6 l |
| Aspiration | Turbocharged - Aftercooled |
| Bore | 6.69 in 170.0 mm |
| Stroke | 8.46 in 215.0 mm |
| Rotation from Flywheel End | Counterclockwise |
Dimensions & Weights
| Height | 86.8 in 2205 mm |
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| Minimum Length | 104.2 in 2624.0 mm |
Standard Equipment
Air Inlet System
- Corrosion-resistant aftercooler core
Control System
- Dual A5 engine control modules with electronic unit injection and low pressure fuel system
Exhaust System
- Dual turbochargers with water-cooled bearings and heat shields
General
- Vibration damper and guard
- Meets SOLAS regulations
Fuel System
- Duplex Fuel and Oil Filtration
Cooling System
- Auxiliary fresh water pump
- Gear Driven, centrifugal jacket water pump with 40% more capacity