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Caterpillar
3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final)
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.
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Details
Specifications
Power Rating
| Spec | Value |
|---|---|
| Power Range | 732-2399 bhp (546-1789 bkW) 732-2399 bhp (546-1789 bkW) |
Engine Specifications
| Spec | Value |
|---|---|
| Aspiration | TA TA |
| Emissions | U.S. EPA Tier 4 Final, IMO III U.S. EPA Tier 4 Final, IMO III |
| Bore | 6.69 in 170 mm |
| Displacement | 3574 in³ 58.6 l |
| Stroke | 8.46 in 215 mm |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Configuration | Vee 12, 4-Stroke-Cycle Diesel Vee 12, 4-Stroke-Cycle Diesel |
Dimensions & Weights
| Spec | Value |
|---|---|
| Maximum Width | 81.9 in 2081 mm |
| Minimum Width | 71.2 in 1808 mm |
| Maximum Height | 91.9 in 2335 mm |
| Minimum Height | 91.9 in 2335 mm |
| Minimum Dry Weight | 18025 lb 8176 kg |
| Maximum Length | 125.4 in 3184 mm |
| Minimum Length | 104.2 in 2624 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