4045HFG81 4.5L Generator Drive Engine

4045HFG81 4.5L Generator Drive Engine

Overview

  • 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
Build your own
Features

Features

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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

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