BUKH D4 / 175-320 HP

BUKH marine engine

175 - 320 hp (129 - 235 kW)

Bukh´s 4-cylinder D4 is developed from the latest design in modern diesel technology. The engine has common rail fuel injection system, double overhead camshafts,

4 valves per cylinder, turbocharger and aftercooler. Together with a large swept volume and the EVC system (Electronic Vessel Control), this results in world-class diesel

performance, combined with low emissions. The engine is extremely compact for its high output.

 

Following powerrange is avaliable:

INBOARD:

BUKH D4 - 175 HP (129 kW)

BUKH D4 - 230 HP (169 kW)

BUKH D4 - 270 HP (199 kW)

BUKH D4 - 300 HP (221 kW)

BUKH D4 - 320 HP (235 kW)

 

STERNDRIVE:

BUKH D4 - 230 HP (169 kW)

BUKH D4 - 270 HP (199 kW)

BUKH D4 - 300 HP (221 kW)

BUKH D4 - 320 HP (235 kW)

See below download for product spec.

Technical description

Engine block and head

  • Cylinder block and head made of cast iron
  • Combined ladder frame and balance shafts
  • 4-valve technology with hydraulic lash adjusters
  • Double overhead camshafts
  • Oil-cooled pistions with two compressionrings and one oil scraper ring
  • Integrated cylinder liners
  • Replaceable valve seats
  • Five-bearing crankshaft
  • Rear-end transmission

 

Engine mounting

  • Flexible engine mounting

 

Lubrication system

 

  • Easily replaceable separate full-flow and by-pass oil filter
  • Seawater cooled tubular oil cooler
  • Oil level and oil temperature sensors
  • Crankcase oil separator, maintenance free unit

 

Fuel system

  • Common rail fuel injection system, 2000 bar
  • Electronically controlled central processing system
  • Fuel pressure sensor that indicates clogging in fuel filters
  • Single fine filter with water separator and water in fuel alarm

 

Air inlet and exhaust system

  • Air filter with replaceable insert
  • Crankcase gases vented into the air inlet
  • Exhaust elbow or exhaust riser
  • Freshwater-cooled turbocharger
  • Loss of sea water alarm

 

Cooling system

  • Thermostatically regulated freshwater cooling
  • Seawater tubular heat exchanger
  • Coolant system prepared for hot water outlet
  • Seawater impeller pump

  • Engine mounted seawater strainer

 

Electrical system

  • Marine alternator (12V/150A or 24V/80A)
  • Autmatic fuses for engine, transmission and EVC
  • Auxiliary stop button
  • Power connections and fuses co-located in one connection box on engine

 

Instruments/control

  • Complete instrumentation/display packages, including e-key
  • Electronic shift and throttle avaliable
  • Plug-in connections

 

Propulsion

  • Shaft drive
  • Water jet
  • Stern drive

Number of cylinders 4
Bore and stroke 103/110
Charging alternator 12V - 150A / 24V - 80A
Net weight 510/525
Model D4
Compression ratio 18,0:1
Valves per cyl 4
Engine crankcase vent syst Closed
Engine duty rating Avaliable in C12 - High Speed Craft Commercial_3 / C9 - Special Light Duty Commercial_4
Output [ps(kW)] acc. to ISO 8665 175 (129) / 230 (169) / 270 (199) / 300 (221) / 320 (235)
Displacement [cc] 3670
Injection system Common rail fuel injection system
Alternator [A] 12V - 150A / 24V - 80A
Electronic engine diagnostic YES
Propulsion system Shaft drive / Water jet