4045HFG81
4.5L Generator Drive Engine
  • PowerTech™ M
  • Standby: 61-65 kW (82-87 hp)
    @ 1500 -1800 rpm
  • Prime: 56-59 kW (75-79 hp)
    @ 1500 - 1800 rpm
  • Dual frequency available
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Features
See how the 61-65 kW ( 82-87 hp) EU Stage III A John Deere 4045HFG81 generator drive diesel engine with fixed geometry turbocharger can provide excellent performance across the entire torque for OEM gen-set applications.
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Jet fuel capable
  • The John Deere jet fuel capable engines run on military, arctic, and aviation fuel, including Jet A, Jet A-1, JP-5, and JP-8. If you need to switch back to diesel fuel, just fill up the tank and go.
Fixed geometry turbocharger
  • Fixed geometry turbochargers are sized for a specific power range and optimized to provide excellent performance across the entire torque curve. They are also designed to maximize fuel economy between the engine’s rated speed and peak torque.
Mechanical rotary pump
  • The timing and fuel injection pressures are optimized to maximize performance and fuel economy at a given rated speed.
2-valve cylinder head
  • Cross-flow head design provides excellent breathing from a lower-cost 2-valve cylinder head.
Compact size
  • Horsepower/displacement ratio is best-in-class
  • Lower installed cost
  • Mounting points are the same as previous engine models
Dual frequency
  • 50 Hz/60 Hz dual frequency is available on these engines and meet EPA Interim Tier 3 and EU Stage III A emissions regulations.
Additional features
  • Self-adjusting poly-vee fan drive
  • Forged-steel connecting rods
  • Either-side service
  • Optional balancer shafts
Specifications
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Emissions Certifications
EPA Tier 3
EU Stage III A
General Engine Data
Model
4045HFG81
Number of cylinders
4
Displacement-- L (cu in)
4.5 (275)
Bore and Stroke-- mm (in)
106 x 127 (4.17 x 5.00)
Compression Ratio
19.0 : 1
Engine Type
In-line, 4-cycle
Aspiration
Turbocharged and air-to-air aftercooled
Length - mm (in)
867 (34.1)
Width-- mm (in)
578 (22.8)
Height-- mm (in)
1049 (41.3)
Weight, dry - kg (lb)
491 (1082)
Performance Data Range
Hz (rpm)
60 ( 1800 )
50 ( 1500 )
Generator Efficiency %
88-92
88-92
Power Factor
0.8
0.8
Engine power - Prime kW
59
56
Engine power - Prime hp
79
75
Engine power - Standby kW
65
61
Engine power - Standby hp
87
82
Rated Fan Power - kW
15.5
9
Rated Fan Power - hp
20.8
12.1
Calculated generator set output - Prime kWe
38-40
41-43
Calculated generator set output - Prime kVA
48-50
51-54
Calculated generator set output - Standby kWe
43-45
46-48
Calculated generator set output - Standby kVA
54-57
57-60
We want to make owning and operating your equipment simple and affordable. 
We have a range of finance options to suit any customer.  Contact your local Emmetts branch, or visit these sites for more information and a free quote.
John Deere FinancialEmmetts Finance
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