Propulsion engines
3512E
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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| Power Range | 1341-2550 bhp (1000-1902 bkW) |
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| Speed Range | 1600 - 1800 rpm |
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| Emissions | U.S. EPA Tier 4, IMO II/III, EU Stage V |
| Aspiration | Twin Turbocharged - Aftercooled |
| Bore | 6.69 in |
| Stroke | 8.46 in |
| Displacement | 3574 in³ |
| Rotation from Flywheel End | Clockwise or Counterclockwise |
| Configuration | V 12, 4-Stroke-Cycle Diesel |
| Approximate Weight | 12824 lb |
| Oil Change Interval | 250 / 500 / 1000 |
| Minimum Dry Weight | 18025.0 lb |
|---|---|
| Minimum Length | 123.5 in |
| Maximum Length | 125.4 in |
| Minimum Height | 91.9 in |
| Maximum Height | 92.1 in |
| Minimum Width | 80.2 in |
| Maximum Width | 81.9 in |
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
- Download ↓3512E Marine Commercial Prop Engine Spec Sheet (1000 bkW -1902 bkW)
Need installed dimensions with enclosure and tank? See Model Configurations