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3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final)

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3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final)

Overview

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.

3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final / IMO III)

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Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs, IMO III emissions compliant

Highest efficiency mixing and control to lower operational costs, extends emissions useful life, ensures compliance, flexibility regarding urea quality

Advanced engine combustion design process utilizing optimum configurations and cylinder geometry for maximum engine efficiency

Enhanced control of fuel injection optimized through crank timing and thelatest A5 ECM technology

Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery

Strengthened cylinder heads and valves for increased durability and peak cylinder pressure capability resulting in higher engine duty cycle capability

Industry-leading warranty coverage for factory packaged components

No matter where or when, our extensive global dealer network is ready to provide support.
Power Range
1263 – 1789 bkW
Frequency
50 / 60
Emissions
U.S. EPA Tier 4, IMO II/III
Configuration
V 12, 4-Stroke-Cycle Diesel
Displacement
3574in³
Aspiration
Turbocharged – Aftercooled
Bore
6.69in
Stroke
8.46in
Rotation from Flywheel End
Counterclockwise
Height
86.8in
Minimum Length
104.2in
  • 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

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