DOOSAN P158FE Marine Diesel Engine

The DOOSAN P158FE is a powerful and reliable marine diesel engine engineered for demanding commercial and industrial marine applications. Delivering 546 PS (≈ 402 kW) at 1500 rpm, this robust 6-cylinder, 4-stroke engine combines dependable performance with excellent fuel efficiency and durability, making it ideal for main propulsion or auxiliary power on a wide range of vessels.

Designed with advanced combustion technology and a turbocharged, aftercooled (TA) configuration, the P158FE provides smooth power delivery, superior torque characteristics, and reduced fuel consumption — even under heavy load conditions. Its rugged construction and precision-engineered components ensure long service life and minimal downtime, helping vessel operators maintain operational efficiency and reduce life-cycle costs.

The engine reliable cooling and lubrication systems are optimized for sustained marine operation, delivering stable performance in varying sea and environmental conditions. Quiet and low-vibration operation further enhances comfort aboard vessels where crew comfort and noise control are priorities.

The DOOSAN P158FE is suited for medium-sized commercial vessels, including patrol boats, ferries, fishing vessels, workboats, and offshore support craft, where consistent power and efficient performance are required. With Doosan global parts support and service network, operators benefit from excellent parts availability and after-sales support, ensuring peace of mind and reduced maintenance concerns.

Overall, the P158FE stands out as a dependable marine diesel engine that delivers the performance, economy, and reliability that professional mariners expect in challenging marine environments.

Specifications:

• Engine Type: 6-cylinder, in-line, 4-stroke marine diesel engine

• Model: P158FE

• Rated Power Output: 546 PS (≈ 402 kW) at 1500 rpm

• Rated Speed: 1500 rpm

• Bore × Stroke: 158 mm × 170 mm

• Total Displacement: 21.23 liters

• Aspiration: Turbocharged and aftercooled

• Fuel System: Direct fuel injection

• Cooling System: Freshwater cooling with heat exchanger (seawater indirect cooling)

• Lubrication System: Forced lubrication with full-flow oil filter

• Compression Ratio: Approx. 16.0 : 1

• Governor: Mechanical or optional electronic governor

• Flywheel Housing: SAE standard

• Starting System: Electric starter motor (DC 24 V)

• Dry Weight: Approx. 2400 kg (engine only; without gearbox)

• Dimensions (L × W × H): Approx. 1900 × 1000 × 1300 mm (engine block only)

• Fuel Consumption: Efficient turbocharged design for improved fuel economy

• Applications:

  • Main propulsion for medium-sized vessels

  • Fishing boats and trawlers

  • Coastal ferries and passenger vessels

  • Workboats and offshore support craft

  • Auxiliary power generation (with appropriate genset configuration)