BUKH Solas Marine Engine
175HP (129kW)


The BUKH R-Series Solenoid Common Rail Direct injection System(CRDi) delivers 175 hp and 440 Nm of torque from the 2.2 liter In-line 4 CRDI engine.

The common rail multiple injection feature makes the In-line 4 R-series more environmentally friendly by minimizing the emissions of particulates and NOX. The design optimizes fuel injection and intake porting to improve combustion performance.

Specifically low-temperature combustion stability through lean air-fuel rationing. This ensures that we satisfy the world´s strictest exhaust emission standards.

Technical Description

  • Cast iron cylinder block
  • Aluminium head
  • Oil cooled piston
  • In-line 4, 16-valve DOHC
  • Hydraulic lash adjusters
  • Integrated water jacket
  • Balance shaft
  • Drive belt auto tensioner
  • Single serpentine belt system

Engine Mounting
  • Adjustable engine mount

Lubrication System
  • Easily exchangeable oil filter cartridge
  • Electric oil extraction pump
  • Seawater cooled transmission oil cooler

Fuel System
  • Common rail direct injection (CRDi)- New solenoid injector with 2,000 bar
  • Fuel filter with sensor detecting water in fuel
  • Electric low pressure pump
  • Dual pressure control valve
  • Low and high pressure fuel pump

Electrical System
  • 12V/150A alternator
  • Auxiliary engine stop button
  • Glowplugs for a trouble free cold start
  • NMEA 2000 Converter (Optional)

Cooling System
  • Seawater pump driven from V-ribbed belt
  • Seawater cooled intercooler, heat exchanger
  • Auxiliary connector for cabin heater
  • Corrosion resistant material for seawater circuit
Exhaust System
  • Engine coolant cooled exhaust manifold
  • Seawater cooled exhaust elbow


Engine rotation (looking forward) Anti-clockwise
Propeller rotation (looking forward) Anti-clockwise
Number of cylinders 4
Bore and stroke 85,4/96
Net weight 280
Compression ratio 17.5:1
Engine type R175J
Engine crankcase vent syst Closed
Engine duty rating S4 (Special Light Duty Commercial) - S5 (Pleasure Duty)
Output [ps(kW)] acc. to ISO 8665 175 (129)
rom@full load 3800
Displacement [cc] 2200
Max. torque [kgm] 440 Nm @ 2000
At speed [rpm] 3800
Injection system Common rail direct injection (CRDi)
Alternator [A] 150
Electronic engine diagnostic YES
Max. Fuel consumption [L/h] 43
Propulsion system Shaftdrive / Waterjet
Cylinders In-line 4
Titel Type Størrelse Download
BUKH_R175_A4_lowres.pdf PDF 5.07MB Download