3512E

3512E

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

Technicial Specifications

Engine Specifications
Aspiration TA TA
Emissions U.S. EPA Tier 4 Final, IMO III U.S. EPA Tier 4 Final, IMO III
Bore 6.69 in 170 mm
Displacement 3574 in³ 58.6 l
Stroke 8.46 in 215 mm
Rotation from Flywheel End Counterclockwise Counterclockwise
Configuration Vee 12, 4-Stroke-Cycle Diesel Vee 12, 4-Stroke-Cycle Diesel
Power Rating
Power Range 732-2399 bhp (546-1789 bkW) 732-2399 bhp (546-1789 bkW)
Dimensions & Weights
Maximum Width 81.9 in 2081 mm
Minimum Width 71.2 in 1808 mm
Maximum Height 91.9 in 2335 mm
Minimum Height 91.9 in 2335 mm
Minimum Dry Weight 18025 lb 8176 kg
Maximum Length 125.4 in 3184 mm
Minimum Length 104.2 in 2624 mm

Advantages and Features

Emissions

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 thelatest 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
  • 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