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Caterpillar

3512E Marine Propulsion Engine (U.S. EPA Tier 4 Final)

The 3512E marine propulsion 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.

Photos

Features

Specifications

  • Power Rating
    Spec Value
    Power Range 1341-2549 bhp (1000-1901 bkW)
  • Engine Specifications
    Spec Value
    Speed Range 1600-1800 rpm
    Emissions U.S. EPA Tier 4 Final, IMO III
    Aspiration TTA
    Bore 6.69 in
    Stroke 8.46 in
    Displacement 3574 in³
    Rotation from Flywheel End Counterclockwise
    Configuration Vee 12, 4-Stroke-Cycle Diesel
  • Dimensions & Weights
    Spec Value
    Minimum Dry Weight 18025 lb
    Minimum Length 104.2 in
    Maximum Length 125.4 in
    Minimum Height 91.9 in
    Maximum Height 91.9 in
    Minimum Width 71.2 in
    Maximum Width 81.9 in

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