3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final)
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.
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Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 1263 - 1789 bkW | ||||
| Frequency | text | 50 / 60 | ||||
| Emissions | text | U.S. EPA Tier 4, IMO II/III |
Documents & Spec Sheets
Features & Benefits
Emissions
Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs, IMO III emissions compliant
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
Advanced Engine Combustion Design
Advanced engine combustion design process utilizing optimum configurations and cylinder geometry for maximum engine efficiency
Enhanced control of fuel injection
Enhanced control of fuel injection optimized through crank timing and thelatest A5 ECM technology
Enhanced Fuel Delivery
Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery
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
Caterpillar Warranty
Industry-leading warranty coverage for factory packaged components
Global Dealer Network
No matter where or when, our extensive global dealer network is ready to provide support.
Complete Specifications
Power Rating
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 1263 - 1789 bkW | ||||
| Frequency | text | 50 / 60 | ||||
| Emissions | text | U.S. EPA Tier 4, IMO II/III | ||||
| Configuration | text | V 12, 4-Stroke-Cycle Diesel | ||||
| Displacement | measurement | 3574.0 | in³ | 58.6 | l | |
| Aspiration | text | Turbocharged - Aftercooled | ||||
| Bore | measurement | 6.69 | in | 170.0 | mm | |
| Stroke | measurement | 8.46 | in | 215.0 | mm | |
| Rotation from Flywheel End | text | Counterclockwise | ||||
| Height | measurement | 86.8 | in | 2205 | mm | |
| Minimum Length | measurement | 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