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Auxiliary Engines

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

Aspiration

TA

Power Range

732-2399 bhp (546-1789 bkW)

Emissions

U.S. EPA Tier 4 Final, IMO III

SPECIFICATIONS

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.

    Dimensions & Weights

    Minimum Length

    104.2 in

    Maximum Length

    125.4 in

    Minimum Dry Weight

    18,025 lb

    Minimum Height

    91.9 in

    Maximum Height

    91.9 in

    Minimum Width

    71.2 in

    Maximum Width

    81.9 in

    Engine Specifications

    Aspiration

    TA

    Emissions

    U.S. EPA Tier 4 Final, IMO III

    Configuration

    Vee 12, 4-Stroke-Cycle Diesel

    Rotation from Flywheel End

    Counterclockwise

    Stroke

    8.46 in

    Displacement

    3,574 in³

    Bore

    6.69 in

    Power Rating

    Power Range

    732-2399 bhp (546-1789 bkW)

    • 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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