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

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.

Aspiration
TA
Power Range
732-2399 bhp (546-1789 bkW)
Emissions
U.S. EPA Tier 4 Final, IMO III
Bore
6.69 in

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

Optional Equipment:

Specifications

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/Optional Features

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

Optional Equipment: