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.
Engine Specifications
- Aspiration
- TA
- Emissions
- U.S. EPA Tier 4 Final, IMO III
- Bore
- 6.69in
- Displacement
- 3574in³
- Stroke
- 8.46in
- Rotation from Flywheel End
- Counterclockwise
- Configuration
- Vee 12, 4-Stroke-Cycle Diesel
Power Rating
- Power Range
- 732-2399 bhp (546-1789 bkW)
Dimensions & Weights
- Maximum Width
- 81.9in
- Minimum Width
- 71.2in
- Maximum Height
- 91.9in
- Minimum Height
- 91.9in
- Minimum Dry Weight
- 18025lb
- Maximum Length
- 125.4in
- Minimum Length
- 104.2in
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
Optional Equipment:
Specifications
Engine Specifications
- Aspiration
- TA
- Emissions
- U.S. EPA Tier 4 Final, IMO III
- Bore
- 6.69in
- Displacement
- 3574in³
- Stroke
- 8.46in
- Rotation from Flywheel End
- Counterclockwise
- Configuration
- Vee 12, 4-Stroke-Cycle Diesel
Power Rating
- Power Range
- 732-2399 bhp (546-1789 bkW)
Dimensions & Weights
- Maximum Width
- 81.9in
- Minimum Width
- 71.2in
- Maximum Height
- 91.9in
- Minimum Height
- 91.9in
- Minimum Dry Weight
- 18025lb
- Maximum Length
- 125.4in
- Minimum Length
- 104.2in
Standard/Optional Features
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