4045HFC93 4.5L Industrial Diesel Engine

4045HFC93 4.5L Industrial Diesel Engine


  • 4.5L PowerTech™ PVX
  • 93 - 129 kW (125 - 173 hp)
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Variable geometry turbocharger (VGT)

  • 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 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 resulting in greater low-speed torque and better transient response time by utilizing a cross-flow design.

Air-to-air aftercooled

  • This is the most efficient method of cooling intake air to help reduce engine emissions while maintaining low-speed torque, transient response time, and peak torque. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.

Compact size

  • Simplifies installation; Mounting points are the same as previous models

Engine performance

  • Multiple rated speeds to further reduce noise and improve fuel economy; Low-speed (1000 rpm) torque equal to or better than Tier 3/Stage III A; Optional power bulge equal to or better than Tier 3/Stage III A

John Deere electronic engine controls

  • Faster engine control unit (ECU) manages both the engine and the exhaust filter; Four times the memory, twice the RAM, and double the processing speed; Input/output capability has increased 40%; JDLink™ lets you monitor, protect, and maintain your equipment 24/7; Premium software option integrates with equipment or vehicles to reduce engineering and installation costs

Additional features

  • Glow plugs
  • Gear-driven auxiliary drives
  • 500-hour oil change
  • Self-adjusting poly-vee fan drive
  • Optional factory installed variable-speed fan drive improves fuel economy and reduces noise levels
  • R.H. and L.H. engine-mounted final fuel filters
  • Optional low-pressure fuel system with electrical transfer pump and auto-prime feature


Emissions certifications

EPA Interim Tier 4
EU Stage III B

General engine data

Model 4045HFC93
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 16.5 : 1
Engine Type In-line, 4-cycle
Aspiration 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) 566 (1248)

DOC/DPF Dimensions

Size 8 - Diameter - mm (in) 307.18 (12.1)
Size 8 - Length - mm (in) 636.95 (25.1)
Size 8 - Weight - kg (lb) NA

Performance data range

Intermittent - Rated power/Rated speed 116-129 kW (156-173 hp) @2200-2400 rpm
Intermittent - Peak power 117-129 kW (157-173 hp) @2100-2400 rpm
Intermittent - Power bulge 0 %
Intermittent - Peak torque 645 N·m (476 ft-lb) @1600 rpm
Intermittent - Torque rise 26-28%
Heavy Duty - Rated power/Rated speed 104 kW (139 hp) @2200-2400 rpm
Heavy Duty - Peak power 107-112 kW (143-150 hp) @1900-2200 rpm
Heavy Duty - Power bulge 2-8 % @2000-2200 rpm
Heavy Duty - Peak torque 552-601 N·m (407-443 ft-lb) @1600 rpm
Heavy Duty - Torque rise 33%
Continuous - Rated power/Rated speed 93-104 kW (125-139 hp) @2200-2400 rpm
Continuous - Peak power 96-106 kW (129-142 hp) @1900-2200 rpm
Continuous - Power bulge 1-2 % @2000-2200 rpm
Continuous - Peak torque 537-552 N·m (396-407 ft-lb) @1600 rpm
Continuous - Torque rise 33%