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John Deere 6068TF250 6.8L Industrial Diesel Engine

Model Photo


  • PowerTech™
  • 106 – 149 kW (142 - 200 hp)



Dynamically balanced crankshaft

  • Crankshafts are machined from a heat-treated, high carbon steel forging

Forged-steel connecting rods

  • Unique 45-degree design permits the use of larger crankshaft connecting-rod bearings for increased durability

Self-adjusting poly-vee fan drive

  • Self-adjusting, eight-groove, poly-vee fan drive provides multiple fan drive ratios and fan heights that can be matched to specific application requirements
  • Poly-vee design provides more than twice the drive capacity of comparable vee-belts

Replaceable wet-type cylinder liners

  • Provides excellent heat dissipation
  • Precision machined for long life

Either-side service

  • Engine installation and maintenance simplified and convenient by providing dipstick and oil filter options on both sides of the engine

Standard gear auxiliary drive

  • Standard gear auxiliary drive produces up to 50 hp (37 kW) for gear-driven accessories

Mounting points

  • Standard front and side mounting points provide easy installation and application flexibility

Emissions Certifications


General engine data

Model 6068TF250
Number of cylinders 6
Displacement-- L (cu in) 6.8 (415)
Bore and Stroke-- mm (in) 106 x 127 (4.17 x 5.00)
Compression Ratio 17.0:1
Engine Type In-line, 4-Cycle
Aspiration Turbocharged
Length - mm (in) 1116 (43.9)
Width-- mm (in) 623 (24.5)
Height-- mm (in) 1012 (39.8)
Weight, dry - kg (lb) 569 (1254)

Performance data range

Intermittent - Rated power/Rated speed 138-149 kW (185-200 hp) @2400 rpm
Intermittent - Peak power 138-155 kW (185-208 hp) @2200-2400 rpm
Intermittent - Peak torque 682-793 N·m (503-585 ft-lb) @1400-1500 rpm
Intermittent - Torque rise NA
Heavy Duty - Rated power/Rated speed 106-128 kW (142-172 hp) @2200-2300 rpm
Heavy Duty - Peak power 112-128 kW (150-172 hp) @2000-2300 rpm
Heavy Duty - Peak torque 614-668 N·m (453-493 ft-lb) @1400 rpm
Heavy Duty - Torque rise NA