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

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