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.
| Power Range | 1263 - 1789 bkW |
| Frequency | 50 / 60 |
| Emissions | U.S. EPA Tier 4, IMO II/III |
| Configuration | V 12, 4-Stroke-Cycle Diesel |
| Displacement | 3574in³ |
| Aspiration | Turbocharged - Aftercooled |
| Bore | 6.69in |
| Stroke | 8.46in |
| Rotation from Flywheel End | Counterclockwise |
| Height | 86.8in |
| Minimum Length | 104.2in |
| Air Inlet System |
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| Control System |
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| Exhaust System |
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| General |
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| Fuel System |
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| Cooling System |
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