BUKH SeasAll S250



250ps [184kW] ace. to ISO 8665

Piezo controlled common rail injection system delivers 250ps and 50kg · m torque from the 3.0 liter V6 Common Rail Direct Injection (CRDI) engine. Advanced design also makes it ultra light, quiet and fuel efficient with its dimensions extremely compact.

Durability and Reliability
Advantageous is the use of Compacted Graphite Iron (CGI) for the cylinder block. The CGI block is lighter and quieter than conventional grey cast iron and demonstrates at least 80 percent higher tensile strength, 45 percent higher stiffness and approximately double the fatigue strength of iron and aluminium. It lasts longer than anyone of us ever expected. It is the source of innovation and improvement in the marine engine industry.

Marine Gear

Model ZF 45 C for S250J:    
Gear Ratio   1:1
Weight [kg]   31



Engine type   S250J
Engine duty rating   Pleasure & Light Commercial 4-Stroke, 4-Valve E-VGT with intercooler, fresh water cooling
Output [ps(kW)] acc. to ISO 8665   250 (184)
rom@full load   3800
Cylinders   v6
Displacement [cc]   2959
Bore [mm]   84
Stroke [mm]   89
Compression ratio   17.5:1
Max. torque [kgm]   48
At speed [rpm]   3500
Injection system   Common Rall Direct Injection (Piezo injector)
Alternator [A]   150
Electronic engine diagnostic   YES
Max. Fuel consumption [L/h]   50.1
Weight [kg]   334
Propulsion system   Shaftdrive / Waterjet

Technical Description

• Compacted Graphite Iron (CGI) cylinder block
• Aluminium head
• Nine balance weight crank shaft
• Oil cooled piston
• V6 4 valve DOHC
• Hydraulic lash adjusters
• Integrated water jacket
• Low noise duplex timing chain
• Hydraulic timing chain tensioner
• One-serpentine belt system
• Drive belt auto tensioner
Engine Mounting
• Adjustable engine mount
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  (Piezo injector)
• Fuel filter with sensor detecting water in fuel
• Electric low pressure pump
• Dual pressure control valve
• High pressure fuel pump
Electrical System
• 12 volt system and 150A alternator
• Auxiliary engine stop button
• Glow plugs for a trouble-free cold start
Cooling System
• Camshaft directly connected to seawater pump
• Seawater cooled intercooler, heat exchanger
• Auxiliary connector for cabin heater
• Anti-corrosion materials for seawater path
Engine Operating Indicator
• Engine self protection and diagnosis
• Display CAN information
• Display engine diagnostic error code
• Audible alarm and control lamps
Air inlet System
• Reusable airfilter
Exhaust System
• Engine coolant cooled exhaust manifold
• Thermal insulated exhaust system
• Seawater cooled exhaust elbow
• Electric Variable Geometry Turbine (E-VGT)
Engine Coupler
• Life-long and rattle free rubber roller coupler for sterndrive
• Torsion spring type for gearbox
• EPA Tier 2, IMO and RCD compliant
Pass-by Noise Level
• 69,3dB (RCD Standard 75dB)