Marine Power Systems

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

Product description

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.

Engine Specifications
  • Aspiration - TA
  • Emissions - U.S. EPA Tier 4 Final, IMO III
  • Bore - 6.69in
  • Displacement - 3574in³
  • Stroke - 8.46in
  • Rotation from Flywheel End - Counterclockwise
  • Configuration - Vee 12, 4-Stroke-Cycle Diesel
Power Rating
  • Power Range - 732-2399 bhp (546-1789 bkW)
Dimensions & Weights
  • Maximum Width - 81.9in
  • Minimum Width - 71.2in
  • Maximum Height - 91.9in
  • Minimum Height - 91.9in
  • Minimum Dry Weight - 18025lb
  • Maximum Length - 125.4in
  • Minimum Length - 104.2in
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
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