450 - 550 HP (330 - 404 KW)
The BUKH D8 is a reliable, powerful, fuel-efficient and clean marine diesel engine. This 7,7 litre diesel engine has common rail fuel injection, 4 valves per cylinder, twin entry turbo and charge air cooler.
All together with the electronic engine managemnet system results in a very smooth running engine with world-class diesel performance, combined with low fuel consumption and low emission levels.
Engine block and head

• Cast iron cylinder block
• One-piece cast iron cylinder head
• Ladder frame fitted to engine block
• Replaceable dry cylinder liners and valve seats/guides
• Drop forged crankshaft with induction hardened bearing surfaces and fillets with 7 main bearings
• 4 valve per cylinder layout with overhead camshaft
• Each cylinder features cross-flow inlet and exhaust ducts
• Gallery oil cooled cast aluminium alloy pistons wtih three piston rings
• Rear-end transmission

Engine mounting
• Flexible engine mounting

Lubrication system
• Seawater-cooled tubular oil cooler
• Single cartridge type oil filter, easy to replace, with no spillage

Fuel system
• Common rail fuel injection system
• Gear-driven fuel pump and injection timing
• Electronically controlled central processing system (EMS – Engine Management System)
• Single fine fuel filter of spin-on type, with water separator and water alarm

Air inlet and exhaust system

• Mid-positioned twin entry turbocharger with aftercooler
• Air filter with replaceable inserts
• Wet exhaust elbow/riser (option)
• Loss of sea water alarm

Cooling system

Two options available:
1. HE(Heat Exchanger)
• Seawater-cooled tubular heat exchanger
• Coolant system perpared for hot water outlet
• Coolant system prepared for hot water outlet
• Easily accessible seawater pump in rear end
2. KC (Keel Cooling)
• 1,5-circuet cooling system
• Belt-driven centrifugal cooling water pump in HT circuit
• Gear driven rubber impeller cooling water pump in CAC LT circuet

Electrical system
• 24V with extra 12V/115A or 24V/80A alternator

• A type-approved system that fully integrates the engine, electronics and the unique set of EVC features
• Plug-in connectors
• EVC system color display - Optional

• Shaft drive