3512

Overview

The 3512 marine auxiliary engine is now available in a wide range of ratings from lesser regulated up to U.S. EPA Tier 4 Final and IMO III marine emissions regulations. As the commercial marine industry adjusts their operations to meet up to 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) after treatment 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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Power Rating
Power Range732-2399 bhp (546-1789 bkW)
Engine Specifications
AspirationTA
EmissionsU.S. EPA Tier 4 Final, IMO III
Bore170mm
Displacement58.6l
Stroke215mm
Rotation from Flywheel EndCounterclockwise
ConfigurationVee 12, 4-Stroke-Cycle Diesel
Dimensions & Weights
Maximum Width2081mm
Minimum Width1808mm
Maximum Height2335mm
Minimum Height2335mm
Minimum Dry Weight8176kg
Maximum Length2624mm
Minimum Length2624mm
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
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.
Specifications
Power Rating
Power Range732-2399 bhp (546-1789 bkW)
Engine Specifications
AspirationTA
EmissionsU.S. EPA Tier 4 Final, IMO III
Bore170mm
Displacement58.6l
Stroke215mm
Rotation from Flywheel EndCounterclockwise
ConfigurationVee 12, 4-Stroke-Cycle Diesel
Dimensions & Weights
Maximum Width2081mm
Minimum Width1808mm
Maximum Height2335mm
Minimum Height2335mm
Minimum Dry Weight8176kg
Maximum Length2624mm
Minimum Length2624mm
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
Benefits & 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
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