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.

Power Rating

Power Range
732-2399 bhp (546-1789 bkW)
Power Range
732-2399 bhp (546-1789 bkW)

Engine Specifications

Speed Range
Emissions
U.S. EPA Tier 4 Final, IMO III
Aspiration
TA
Bore
6.69in
Stroke
8.46in
Displacement
3574.0in3
Rotation from Flywheel End
Counterclockwise
Configuration
Vee 12, 4-Stroke-Cycle Diesel
Aspiration
TA
Emissions
U.S. EPA Tier 4 Final, IMO III
Bore
6.69in
Displacement
3574in³
Stroke
8.46in

Dimensions & Weights

Minimum Dry Weight
18025.0lb
Minimum Length
104.2in
Maximum Length
104.2in
Minimum Height
91.9in
Maximum Height
91.9in
Minimum Width
71.2in
Maximum Width
81.9in
Minimum Dry Weight
18025lb
Minimum Height
91.9in
Minimum Length
104.2in
Minimum Width
71.2in

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