4045TF290 4.5L Generator Drive Engine

4045TF290 4.5L Generator Drive Engine


  • PowerTech™ M
  • Standby: 55 kW (74 hp) @ 1800 rpm
  • Prime: 50 kW (67 hp) @ 1800 rpm
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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.


  • In turbocharged engines, the air is pre-compressed. Due to the higher pressure, more air is supplied into the combustion chamber, allowing a corresponding increase in fuel injection, which results in greater engine output.

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.


Emissions certifications

EPA Interim Tier 4

General engine data

Model 4045TF290
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
Length - mm (in) 860 (33.9)
Width-- mm (in) 612 (24.1)
Height-- mm (in) 994 (39.1)
Weight, dry - kg (lb) 396 (873)

Performance data range

Hz (rpm) 60 ( 1800 )
Generator Efficiency % 88-92
Power Factor 0.8
Engine power - Prime kW 50
Engine power - Prime hp 67
Engine power - Standby kW 55
Engine power - Standby hp 74
Rated Fan Power - kW 1.9
Rated Fan Power - hp 2.5
Calculated generator set output - Prime kWe 42-44
Calculated generator set output - Prime kVA 53-55
Calculated generator set output - Standby kWe 47-49
Calculated generator set output - Standby kVA 59-62