4045HF275 4.5L Industrial Diesel Engine

4045HF275 4.5L Industrial Diesel Engine


  • 4.5L PowerTech™
  • 86 - 104 kW (115 - 139 hp)
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Dynamically balanced crankshaft

  • Crankshafts are formed from nodular iron

Forged-steel connecting rods

  • Unique 45-degree design permits use of larger crankshaft connecting-rod bearings for increased durability

Self-adjusting poly-vee fan drive

  • Self-adjusting, eight-groove, poly-vee fan drive provides multiple fan drive ratios and fan heights that can be matched to specific application requirements
  • Poly-vee design provides more than twice the drive capacity of comparable vee-belts

Replaceable wet-type cylinder liners

  • Provides excellent heat dissipation
  • Precision machined for long life

Either-side service

  • Engine installation and maintenance simplified and convenient by providing dipstick and oil filter options on both sides of the engine.

500-Hour oil change

  • Customers save significant costs on oil, filters and labor with a 500-hour oil change interval

Standard gear auxiliary drive

  • Standard gear auxiliary drive produces up to 50 hp (37 kW) for gear-driven accessories

Mounting points

Standard front and side mounting points provide easy installation and application flexibility

Electronic-controlled rotary injection pump

  • Electronic-controlled rotary injection pump distributes the precise amount of fuel required by each cylinder at exactly the right time
  • Electronic controls monitor engine speed and load to determine fuel timing

SAE J1939 standard communication link

  • Industry standard, which provides an interface with vehicle systems, like the transmission, hydraulics and various accessory drives minimizing machine complexity and reducing the installed cost

Optional engine-balancer shafts

  • Provides smooth engine operation


Emissions certifications

EPA Tier 2
EU Stage II

General engine data

Model 4045HF275
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 17.0:1
Engine Type In-line, 4-Cycle
Aspiration Turbocharged and air-to-air aftercooled
Length - mm (in) 867 (34.1)
Width-- mm (in) 637 (25.1)
Height-- mm (in) 979 (38.5)
Weight, dry - kg (lb) 451 (994)

Performance data range

Intermittent - Rated power/Rated speed 86-104 kW (115-139 hp) @2000-2400 rpm
Intermittent - Peak power 86-104 kW (115-139 hp) @2000-2400 rpm
Intermittent - Peak torque 498 N·m (367 ft-lb) @1400 rpm
Intermittent - Torque rise NA