Auxiliary Engines:

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

3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final / IMO III)
Power Range
732-2399 bhp (546-1789 bkW)
Aspiration
TA
Emissions
U.S. EPA Tier 4 Final, IMO III
Bore
6.69 in

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.



Product Specs

  • Power Rating

  • Power Range
    732-2399 bhp (546-1789 bkW)
  • Engine Specifications

  • Aspiration
    TA
    Emissions
    U.S. EPA Tier 4 Final, IMO III
    Bore
    6.69in
    Configuration
    Vee 12, 4-Stroke-Cycle Diesel
    Displacement
    3574in³
    Rotation from Flywheel End
    Counterclockwise
    Stroke
    8.46in
  • Dimensions & Weights

  • Maximum Height
    91.9in
    Maximum Length
    104.2in
    Maximum Width
    81.9in
    Minimum Dry Weight
    18025lb
    Minimum Height
    91.9in
    Minimum Length
    104.2in
    Minimum Width
    71.2in

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

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