MARINE DIESEL ENGINES

6LT-500/580/640 Series
Configuration in-line, 4-stroke, vertical, water-cooled diesel engine

Maximum output at crankshaft *367 kW@2530 rpm [500 mhp@2530 rpm]

*426 kW@2530 rpm [580 mhp@2530 rpm]

*470 kW@2530 rpm [640 mhp@2530 rpm]

Displacement 8.710 L [531 cu in]

Bore x stroke 117 mm x 135 mm [4.60 in x 5.31 in]

Cylinders 6 cylinders

Combustion system Direct injection Bosch common-rail system

Aspiration Turbocharged & intercooled

Alternator 24V - 90A

Start-assist Electric starting 24V - 5.5kW

Cooling system Fresh water cooling by centrifugal pump

Sea water cooling by rubber impeller pump

Lubrication system Enclosed, forced lubricating system

Direction of rotation [crankshaft] Counterclockwise viewed from stern

Dry weight without gear 940 kg [2072 lbs]

Emission compliance EU: RCD 2 EMC

USA: EPA Tier3 IMO Tier 2

NOTE:
Fuel condition: Density at 15°C = 0.84 g/cm³
* Fuel temperature 40°C at the inlet of the fuel injection pump [ISO 8665: 2006]
Technical data is according to ISO 8665: 2006/3046-1

EN_DS6LT500/580/640_0220

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PERFORMANCE CURVES

6LT500 Output Power curve 6LT500 Torque curve 6LT500 Fuel consumption (load exp. 2.5)
Max. output at crankshaft Max. output at prop. shaft
Propeller power curve (load exp. 2.5)
600 800 2400
140
1600
35
500 2000
120
30
600

Crankshaft Torque (lbf·ft)

Output Power (mhp)

Fuel consumption (gal/h)

Output Power (kW)

Fuel consumption (L/h)

Crankshaft Torque (Nm)
400 1600 1200 100
25

80
300 400 1200 20
800
60
15
200 800
40 10
200 400
100 400
20 5

0 0 0 0 0 0
600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600

Engine Speed (min-1) Engine Speed (min-1) Engine Speed (min-1)

6LT580 Output Power curve 6LT580 Torque curve 6LT580 Fuel consumption (load exp. 2.5)
Max. output at crankshaft Max. output at prop. shaft
Propeller power curve (load exp. 2.5)
600 800 2400
140
1600
35
500 2000
120
30
600

Crankshaft Torque (lbf·ft)

Output Power (mhp)

Fuel consumption (gal/h)

Output Power (kW)

Fuel consumption (L/h)

Crankshaft Torque (Nm)

400 1600 1200 100

25

80
300 400 1200 20
800
60
15
200 800
40 10
200
400
100 400
20 5

0 0 0 0 0 0
600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600

Engine Speed (min-1) Engine Speed (min-1) Engine Speed (min-1)

6LT640 Output Power curve 6LT640 Torque curve 6LT640 Fuel consumption (load exp. 2.5)
Max. output at crankshaft Max. output at prop. shaft
Propeller power curve (load exp. 2.5)
600 800 2400
140
1600
35
500 2000
120
30
600

Crankshaft Torque (lbf·ft)

Output Power (mhp)

Fuel consumption (gal/h)

Output Power (kW)

Fuel consumption (L/h)

Crankshaft Torque (Nm)

400 1600 1200 100

25

80
300 400 1200 20
800
60
15
200 800
40 10
200 400
100 400
20 5

0 0 0 0 0 0
600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600

Engine Speed (min-1) Engine Speed (min-1) Engine Speed (min-1)

ACCESSORIES
Standard Package Optional

• YANMAR VC20 control system • High-riser mixing elbow

• Electronic CAN-bus control-head • Second or third station
• Multi-function color display • Front-PTO pulley [V-belt type A or B]
• NMEA2000 or J1939 gauge output • Hot water connector
• Switch Panel • Secondary Alternator 24V - 110A with external regulator
• Back up Panel • JC20 inboard joystick

EN_DS6LT500/580/640_0220

NOTE: All data subject to change without notice. Text and illustrations are not binding.

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