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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.

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

Documents

Features

Emissions

Utilizes closed loop air assisted DEF dosing control strategy

Advanced Engine Combustion Design

Enhanced control of fuel injection

Enhanced Fuel Delivery

Increased Durability and Higher Engine Duty Cycle Capability

Caterpillar Warranty

Global Dealer Network

Details

Specifications

Spec Value
Power Range 1341-2550 bhp (1000-1902 bkW) 1341-2550 bhp (1000-1902 bkW)
Spec Value
Speed Range 1600 - 1800 rpm 1600 - 1800 rpm
Emissions U.S. EPA Tier 4, IMO II/III, EU Stage 5 U.S. EPA Tier 4, IMO II/III, EU Stage 5
Aspiration Twin Turbocharged - Aftercooled Twin Turbocharged - Aftercooled
Bore 6.69 in 170 mm
Stroke 8.46 in 215 mm
Displacement 3574 in³ 58.6 l
Rotation from Flywheel End Clockwise or Counterclockwise Clockwise or Counterclockwise
Configuration V 12, 4-Stroke-Cycle Diesel V 12, 4-Stroke-Cycle Diesel
Approximate Weight 12824 lb 5817 kg
Oil Change Interval 250 / 500 / 1000 250 / 500 / 1000
Spec Value
Minimum Dry Weight 18025 lb 8176 kg
Minimum Length 123.5 in 3136.1 mm
Maximum Length 125.4 in 3184.1 mm
Minimum Height 91.9 in 2334.6 mm
Maximum Height 92.1 in 2340.3 mm
Minimum Width 80.2 in 2036.7 mm
Maximum Width 81.9 in 2080.1 mm

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

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