CATERPILLAR 3512 DITA Marine Diesel Engine (1200 HP)

The CATERPILLAR 3512 DITA is a heavy-duty V12 marine diesel engine designed for demanding commercial and industrial marine applications requiring high power, reliability, and long-term durability. Delivering 1200 HP (≈895 kW), this engine provides strong torque and dependable performance for propulsion in offshore support vessels, tugboats, ferries, fishing boats, and other large commercial craft.

Built on Caterpillar proven 3512 platform, the DITA configuration (Direct Injection, Turbocharged, Aftercooled) enhances combustion efficiency, optimizes fuel consumption, and ensures consistent power delivery under continuous heavy-duty operation. Its robust construction, advanced cooling, and efficient lubrication systems allow for stable engine operation in harsh marine environments, minimizing wear and extending service life.

The 3512 DITA features an electronic fuel governor for precise load handling and responsive acceleration, making it suitable for vessels that require reliable propulsion and continuous operation. Caterpillar extensive global support network ensures availability of spare parts and technical assistance, further reducing downtime and operational risk.

Ideal for main propulsion in medium to large vessels, the CATERPILLAR 3512 DITA 1200 HP combines power, durability, and maintainability, making it a trusted choice for marine operators who demand reliable performance in challenging maritime conditions.

Specifications:

• Engine Type: 12-cylinder V-type, 4-stroke marine diesel

• Model: 3512 DITA (Direct Injection, Turbocharged, Aftercooled)

• Rated Power Output: 1200 HP (≈ 895 kW)

• Rated Speed: 1600 RPM

• Aspiration: Turbocharged and aftercooled

• Fuel System: Electronic high-pressure fuel injection

• Displacement: 56.7 liters

• Bore × Stroke: 159 mm × 159 mm

• Compression Ratio: Approx. 14.0 : 1

• Cooling System: Freshwater cooling with heat exchanger; seawater loop for jacket cooling

• Lubrication System: Full-flow forced lubrication with spin-on filters

• Governor: Electronic governor for precise load control

• Starting System: 24 V DC electric starter

• Flywheel Housing: SAE standard

• Dry Weight: Approx. 5500–5800 kg (engine only; varies with accessories)

• Dimensions (Approx. L × W × H): 3700 × 1500 × 2000 mm

• Emission Compliance: IMO Tier II (depending on configuration)

• Exhaust Outlet: Jacketed or dry type depending on marine setup

• Applications:

  • Main propulsion for tugboats, ferries, offshore support vessels, and large commercial vessels

  • Heavy-duty continuous marine operations

  • Auxiliary power generation with proper configuration