S270 Series – S270HP, S270P, S270J

S270HP Series Engine

Our Piezo controlled common rail injection system delivers 270PS and 57.6kg-m torque from the 3.0 litre V6 CRDI engine. The advanced design also makes it ultralight, quiet and fuel-efficient with extremely compact dimensions

Hyundai SeaSall S270 diesel engine


The designs optimize fuel injection and intake porting to improve combustion performance, particularly low-temperature combustion stability though lean air-fuel rationing.

This ensures that we satisfy the world’s strictest exhaust emission standards while providing the smooth, quiet and efficient power for which Hyundai SeasAll is becoming known.


The S270 features leading edge diesel technologies for a quieter, cleaner, greener, meaner inboard engine


At the core of Hyundai Seasall’s Advanced diesel technology is a focus on stability, performance, fuel efficiency and reliability: key elements which make their engines world class.

Cast iron cylinder block

Durability and Reliability

The use of Compacted Graphite iron (CGI) for the cylinder block gives Hyundai Seasall engines several advantages. The CGI block is lighter and quieter than conventional grey cast iron and demonstrates at least 85 percent higher tensile strength, 45 percent higher stiffness and approximately double the fatigue strength of iron and aluminum. It lasts longer than even we ever expected. this technology is a prime example of the innovation and improvement we bring to the marine engine industry. with Hyundai Seasall, you are on the cutting edge.

Powertrain technology

Hyundai Powertrain Technology, already proven in a full range of modern diesel engines, now brings this exceptional performance and reliability to the marine market.

Technical Description

• Compacted Graphite Iron (CGI) cylinder block
• Aluminum head
• Nine balance weight crankshaft
• Oil cooled pistons
• V6, 24-valve DOHC
• Hydraulic lash adjusters
• Integrated water jacket
• Low noise duplex timing chain
• Hydraulic timing chain tensioner
• Single serpentine belt system
• Drive belt auto tensioner

Engine Mounting
• Adjustable engine mounts

Lubrication System
• Easily exchangeable oil filter cartridge
• Electric oil extraction pump
• Seawater cooled oil cooler
• Chain drive engine oil pump

 Fuel System
• Common rail direct injection (CRDi)-Piezo injectors
• Fuel filter with sensor detecting water in fuel
• Electric low pressure pump
• Dual pressure control valve
• High pressure fuel pumps

Electrical System
•12 volt system and 150A alternator
• Auxiliary engine stop button
• Glow plugs for a trouble-free cold start
• NMEA2000 Converter (Optional)
• 2 Pole system (Optional)
• Electronic control system (Optional)

Cooling System
• Seawater pump driven directly from the camshaft
• Seawater cooled intercooler, heat exchanger
• Auxiliary connector for cabin heating
• Corrosion resistant material for seawater circuit

Engine Operating Indicator (EOI)
• Engine self protection and diagnosis
• Displays CAN information
• Displays engine diagnostic error codes
• Audible alarm and control lamps

Air Inlet system
• Oil wetted and reusable air filter
• Intake silencer (Optional)

Exhaust System
• Engine coolant cooled exhaust manifold
• Seawater cooled exhaust elbow
• Seawater cooled Hi-Riser (Optional)

• E-VGT, Electronic Variable Geometry Turbo

• EPA Tier 3, IMO Tier 2 and RCD compliant