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 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
Stroke 8.46in
Displacement 4765in³
Configuration Vee 16, 4-Stroke-Cycle Diesel
Bore 6.69in
Rotation from Flywheel End Counterclockwise

Power Rating

Power Range 787-3175 bhp (587-2368 bkW)

Dimensions & Weights

Minimum Width 72.8in
Dry Weight 22060lb
Height 90.9in
Length 146.6in
Maximum Width 87.9in

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
  • General
    • Vibration damper and guard
    • Meets SOLAS regulations

Optional Equipment