3516E Marine Auxiliary Engine (U.S. EPA Tier 4 Final)

The 3516E 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 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.



Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs, IMO III emissions compliant

Utilizes closed loop air assisted DEF dosing control strategy

Highest efficiency mixing and control to lower operational costs, extends emissions useful life, ensures compliance, flexibility regarding urea quality

Advanced Engine Combustion Design

Advanced engine combustion design process utilizing optimum configurations and cylinder geometry for maximum engine efficiency

Enhanced control of fuel injection

Enhanced control of fuel injection optimized through crank timing and the latest A5 ECM technology

Enhanced Fuel Delivery

Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery

Increased Durability and Higher Engine Duty Cycle Capability

Strengthened cylinder heads and valves for increased durability and peak cylinder pressure capability resulting in higher engine duty cycle capability

Caterpillar Warranty

Industry-leading warranty coverage for factory packaged components

Global Dealer Network

No matter where or when, our extensive global dealer network is ready to provide support

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
Cooling System
  • Auxiliary fresh water pump
  • Gear Driven, centrifugal jacket water pump with 40% more capacity
Exhaust System
  • Dual turbochargers with water-cooled bearings and heat shields
Fuel System
  • Duplex Fuel and Oil Filtration
  • Vibration damper and guard
  • Meets SOLAS regulations

Additional information

Offering Type

Power Rating - Power Range

787-3175 bhp (587-2368 bkW)

Engine Specifications - Aspiration


Engine Specifications - Emissions

U.S. EPA Tier 4 Final, IMO III

Engine Specifications - Stroke

215.0 mm ( 8.46 in )

Engine Specifications - Displacement

78.0 l ( 4765.0 in³ )

Engine Specifications - Configuration

Vee 16, 4-Stroke-Cycle Diesel

Engine Specifications - Bore

170.0 mm ( 6.69 in )

Engine Specifications - Rotation from Flywheel End


Dimensions & Weights - Minimum Width

1850.0 mm ( 72.8 in )

Dimensions & Weights - Dry Weight

10006.0 kg ( 22060.0 lb )

Dimensions & Weights - Height

2309.0 mm ( 90.9 in )

Dimensions & Weights - Length

3724.0 mm ( 146.6 in )

Dimensions & Weights - Maximum Width

2230.0 mm ( 87.9 in )

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