4.5L Generator Drive Engine
  • PowerTech™ PVX
  • Standby: 105-124 kW (141-166 hp) @ 1800 rpm
  • Prime: 95-113 kW (128-151 hp) @ 1800 rpm
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Meet emissions requirements without sacrificing performance with the 105-124 kW (141-166 hp)John Deere 4045HFG93 Interim Tier 4 generator drive diesel engine with mechanical fuel systems.
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Variable geometry turbocharger
  • Varies exhaust pressure based on load and speed to ensure proper EGR flow. The combination of the cooled EGR and VGT provide low-speed torque, quicker transient response, higher-peak torque, and world-class fuel economy.
Cooled exhaust gas recirculation (EGR)
  • EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx.
Exhaust filters
  • These engines utilize a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). The DOC reacts with exhaust gases to reduce carbon monoxide, hydrocarbons, and some particulate matter (PM). The downstream DPF traps and holds the remaining PM. Trapped particles are oxidized within the DPF through a continuous cleaning process called passive regeneration. Passive regeneration occurs during normal operating conditions when heat from the exhaust stream and catalysts within the exhaust filter trigger the oxidation of the trapped PM. If passive regeneration cannot be achieved due to low temperature, load, or speed, then PM is removed using active regeneration — an automatic cleaning process controlled by the exhaust temperature management system. Engines below 130 kW (174 hp) use an in-cylinder dosing system for active regeneration, while larger engines use an external dosing system.
High-pressure common-rail (HPCR) and engine control unit (ECU)
  • The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures up to 1,975 bar (29,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.
4-valve cylinder head
  • The 4-valve cylinder head provides excellent airflow by utilizing a cross-flow design and a U-flow design.
Air-to-air aftercooled
  • This is the most efficient method of cooling intake air to help reduce engine emissions. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.
Compact size
  • Lower installed cost
  • Simplifies installation
  • Mounting points are the same as previous models
Electronic engine controls
  • Faster engine control unit (ECU) manages both the engine and the exhaust filter
  • Full authority electronic controls
  • Four times the memory, twice the RAM, and double the processing speed
  • The input/output capability has increased 40%
Additional features
  • Glow plugs
  • 500-hour oil change
  • Self-adjusting poly-vee fan drive
  • Variable-speed fan drive increases fuel economy and decreases noise levels
  • Low-pressure fuel system with electrical transfer pump and "auto-prime" feature (optional)
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Emissions Certifications
EPA Interim Tier 4
General Engine Data
Number of cylinders
Displacement-- L (cu in)
4.5 (275)
Bore and Stroke-- mm (in)
106 x 127 (4.17 x 5.00)
Compression Ratio
16.5 : 1
Engine Type
In-line, 4-cycle
Turbocharged and air-to-air aftercooled
Length - mm (in)
867 (34.1)
Width-- mm (in)
680 (26.8)
Height-- mm (in)
1076 (42.4)
Weight, dry - kg (lb)
570 (1257)
Doc/Dpf Dimensions
Size 2 - Diameter - mm (in)
260.71 (10.3)
Size 2 - Length - mm (in)
572.59 (22.5)
Size 2 - Weight - kg (lb)
21.364 (47.1)
Scr Catalyst Dimensions
Size 5 - Diameter -mm(in)
360.68 (14.2)
Size 5 - Weight -kg(lb)
47.17 (104.0)
Size 5 - Length -mm(in)
784.86 (30.9)
Performance Data Range
Hz (rpm)
60 ( 1800 )
Generator Efficiency %
Power Factor
Engine power - Prime kW
Engine power - Prime hp
Engine power - Standby kW
Engine power - Standby hp
Rated Fan Power - kW
Rated Fan Power - hp
Calculated generator set output - Prime kWe
Calculated generator set output - Prime kVA
Calculated generator set output - Standby kWe
Calculated generator set output - Standby kVA
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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