4.5L Industrial Diesel Engine
  • PowerTech™ M
  • 74 kW (99 hp)
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Get details on 99 hp, 74 kW John Deere 4045HF280 industrial diesel engines for OEM equipment, including features, specs, and integrated support.
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2-valve cylinder head
  • Cross flow head design that provides excellent breathing from a lower cost two-valve cylinder head
Mechanical rotary fuel pump
  • The timing and fuel injection pressures are optimized to maximize performance and fuel economy at a given rated speed
Fixed geometry turbocharger
  • Fixed geometry turbochargers are precisely matched to the power level and application
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
  • Mounting points are the same as Tier 2/Stage II engine models
Engine performance
  • New power bulge feature
  • New higher-peak torque speed
  • Lower-rated speeds available for reduced noise and improved fuel economy
Additional features
  • Self-adjusting poly-vee fan drive
  • Forged-steel connecting rods
  • Replaceable wet-type cylinder liners
  • Either-side service
  • 500-hour oil change
  • Optional final fuel filter with water separator and water-in-fuel sensor
  • Optional balancer shafts
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Emissions Certifications
EPA Tier 3
EU Stage III A
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
Engine Type
In-line, 4-Cycle
Turbocharged and air-to-air aftercooled
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
Intermittent - Rated power/Rated speed
60-74 kW (80-99 hp) @2200-2400 rpm
Intermittent - Peak power
75 kW (101 hp) @2000-2200 rpm
Intermittent - Peak torque
366-383 N·m (270-282 ft-lb) @1600 rpm
Intermittent - Torque rise
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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