4045HG551

4045HG551

  • 4045HG551
  • PowerTech™ EWS
  • Certified to EU Stage V only
  • Standby: 83-106 kW (111-142 hp) @ 1500-1800 rpm
  • Prime: 76-96 kW (102-129 hp) @ 1500-1800 rpm

    Specifications

    Emissions Certifications

    EPA Final Tier 4 / EU Stage V engines 

    General engine data

    Model4045HG551
    Number of cylinders4
    Displacement-- L (cu in)4.5 (275)
    Bore and Stroke-- mm (in)106 x 127 (4.2 x 5.0)
    Compression Ratio17.1 : 1
    Engine TypeIn-line, 4-cycle
    AspirationTurbocharged
    Length - mm (in)871 (34)
    Width-- mm (in)\663 (26)
    Height-- mm (in)1024 (40)
    Weight, dry - kg (lb)506 (1116)

    ATD

    DOC/DPFSize 2
    SCR CatalystN/A

    Performance data range

    Rated power55kW (74 hp) @ 2200-2400 rpm
    Peak power55kW (74 hp) @ 2200-2400 rpm
    Application ratingContinuous
    Peak torque304 nM (224 lb-ft) @ 1600 rpm
    Power bulge0%
    Torque rise39%

    Features

    • John Deere has billions of hours of field experience with off-highway diesel engine technologies and launched many of its engines ahead of EPA and EU deadlines, and is ready to meet Stage V emissions regulations using our proven diesel particulate filter (DPF) solutions. In most cases, OEM customers currently using a John Deere engine with a diesel particulate filter (DPF) won’t have to re-engineer machine design to meet the requirements of Stage V regulations. Our engineers continue to employ a global network of technical resources and the latest technology to lower emissions while improving performance and fluid efficiency.

    • Wastegated turbochargers are designed to develop more airflow at lower engine speeds to improve low-speed torque. The wastegate control device bleeds off a portion of the exhaust flow at higher engine speeds. Wastegated turbos deliver improved transient response and higher peak torque without compromising engine envelope size. They also provide the lowest installed cost across a given power range.

    • 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.

    • The HPCR fuel system provides variable common-rail pressure and high injection pressures. It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.

    • Cross-flow head design provides excellent breathing from a low-cost 2-valve cylinder head.  This less complex design is optimized for these ratings.

    • Lower installed cost

    • Faster engine control unit (ECU) manages both the engine and the exhaust filter

    • Replaceable (wet) cylinder liners

    • Grid heater cold start aid