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D6 / 370

D6 / 370

D6 / 370

Product catalog summary
Overview: The BUKH 6-cylinder D6-370 engine is a modern diesel engine featuring advanced technologies such as a common rail fuel injection system, double overhead camshafts, and a turbocharger with aftercooler. It is designed for high performance in marine applications.
Engine Block and Head: The engine features a cast iron cylinder block and head, with a ladder frame for stability. It includes 4-valve technology with hydraulic lash adjusters, double overhead camshafts, and oil-cooled pistons. The crankshaft is supported by 7 bearings, and the engine has integrated cylinder liners and replaceable valve seats.
Engine Mounting: The engine is mounted flexibly to reduce vibrations and enhance stability.
Lubrication System: The system includes easily replaceable full-flow and by-pass oil filters and a seawater-cooled tubular oil cooler.
Fuel System: The engine uses a common rail fuel injection system with a control unit for precise injection processing and a fine filter with a water separator.
Air Inlet and Exhaust System: Features include an air filter with a replaceable insert, venting of crankcase gases into the air inlet, and a freshwater-cooled turbocharger. An alarm for loss of seawater is also included.
Cooling System: The engine has a thermostatically regulated freshwater cooling system with a tubular heat exchanger and a large volume expansion tank. It is prepared for a hot water outlet and includes an easily accessible seawater impeller pump.
Electrical System: Available in 12V or 24V configurations, the system includes a marine alternator with Zener diodes for voltage protection and an integrated charging regulator. It also features fuses with automatic or manual reset and an auxiliary stop button.
Instruments/Controls: The engine comes with complete instrumentation and display packages, with options for electronic shift and throttle controls.
Specifications: The D6-370 engine is SOLAS approved and features a crankshaft power of 370 hp (272 kW) at 3500 rpm. It has a displacement of 5.5 liters, a bore of 103 mm, and a stroke of 110 mm. The compression ratio is 17.5:1, and it supports both shaft drive and waterjet propulsion systems.
Performance Data: The engine's fuel consumption is up to 76.8 liters per hour, and it has a dry weight of 580 kg. Graphs included in the document illustrate fuel consumption, power output, and torque across various RPMs.
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Catalog excerpts

D6 / 370-1

Photo: Norsafe Magnum 750 rescue boat BUKH SOLAS MARINE DIESELENCI, 370 HP (272 KW) The BUKH 6-cylinder D6-370 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. TECHNICAL DESCRIPTION: ENGINE BLOCK AND HEAD • Cast iron cylinder block and cylinder head • Ladder frame fitted to engine block • 4 valve technology with hydraulic lash adjusters • Double overhead camshafts • Oil cooled pistons with two compression rings and one oil scraper ring • Integrated cylinder liners • Replaceable valve seats • 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 FUEL SYSTEM • Common rail fuel injection system • Control unit for processing the injection • Fine filter with water separator COOLING SYSTEM • Thermostatically regulated freshwater cooling • Tubular heat exchanger with separate large volume expansion tank • Coolant system prepared for hot water outlet • Easily accessible seawater impeller pump ELECTRICAL SYSTEM • 12V or 24 V two-pole electrical system • 14V/115A or 28V/80A marine alternator with Zener- diodes to protect the system from peak voltage, and integrated charging regulator with battery sensor cable for maximum use of alternator • Fuses with automatic reset (12V) and fuses with manual reset (24V) • Auxiliary stop button INSTRUMENTS/CONTROLS • Complete instrumentation/display packages, including e-key • Electronic shift and throttle available as extras • Plug-in connections 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

 Open the catalog to page 1
D6 / 370-2

D6-370 BUKH SOLAS MARINE DIESEL ENGINE D6-370 Specifications Engine type Engine duty rating C12 - High Speed Craft Commercial_3 Crankshaft power [hp(kW)] Rpm@full load Compression ratio Injection system Common Rail fuel injection system Electronic engine diagnostic Dry Weight Bobtail [kg] Cr ankshaft power Calculat ed propeller l oad exp. PropulsionkW system kW 2.5 Power Cr ankshaft power Calculatetri c hp, m Waterjet Drive /ed propeller l oad exp. 2.5 As BUKH is always endeavouring to improve the engines, specifications mentioned are subject 22 2255 22 2255 30 0 to alterations without previous...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.