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John Deere 6068TFM50 Marine Propulsion Engine

Model Photo

6068TFM50

  • 6.8L PowerTechâ„¢
  • 115-168 kW (154-225 hp)

 

Features

Watercooled turbocharger and exhaust manifold

  • Cooler and quieter environment for vessel and crew

Replaceable wet-type cylinder liners

  • Excellent heat dissipation
  • Hardened and precision machined for long life
  • Rebuild to original specifications

Corrosion resistant components

  • Provides engine protection from the effects of seawater

Either-side service

  • Oil fill and dipstick combinations
  • Remote oil filter for easier service access
  • Application and service flexibility to provide installation convenience plus fast and easy maintenance

Heat exchanger or keel-cooled

  • High-capacity heat exchanger designed for reliable operation in adverse conditions
  • Integrated expansion tank, heat exchanger and exhaust manifold
  • Keel cooler or heat exchanger options provide application flexibility

High torque and low rated RPM

  • Enables the engine to turn larger propellers at lower speed for best efficiency
  • Excellent vessel control and maneuvering
  • Lower rated rpm limits vibration and noise for better crew comfort

Fuel system

  • Proven and reliable Mechanical Governor

Emissions Certifications

Non-Certified  

General Data (based on standard option configuration)

Model 6068TFM50
Number of cylinders 6
Displacement-- L (cu in) 6.8 (415)
Bore and Stroke-- mm (in) 106 x 127 (4.17 x 5.00)
Engine Type In-line, 4- Cycle
Aspiration Turbocharged
Length - mm (in) 1141 (44.9)
Width Maximum - mm (in) 712 (28.0)
Height-- mm (in) 881 (34.7)
Weight, dry - kg (lb) 730 (1609)

Engine Specifications

Performance Rating Power KW (bhp)
Rated Speed (rpm)
Rated fuel consumption L/hr(gal/hr)
M1 115 ( 154 )
2300
M2 130.5 ( 175 )
2400
36.3 ( 9.6 )
M3 149 ( 200 )
2500
M4 168 ( 225 )
2600
46.8 ( 12.4 )

M rating

M1 - Typical annual usage (hr) Unrestricted
M1 - Typical full-power operation (hr) Uninterrupted
M1 - Typical load factor <65%
M2 - Typical annual usage (hr) 000-5
M2 - Typical full-power operation (hr) 16 of each 24 hr
M2 - Typical load factor <=65%
M3 - Typical annual usage (hr) 000-4
M3 - Typical full-power operation (hr) 4 of each 12 hr
M3 - Typical load factor <=50%
M4 - Typical annual usage (hr) 000-3
M4 - Typical full-power operation (hr) 1 of each 12 hr
M4 - Typical load factor <=40%