4045HG551 | Generator Drive Engine

Features

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Stage V.

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 turbocharger

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.

Exhaust filters

These engines utilise a catalysed 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 oxidised 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.

High-pressure common-rail (HPCR)

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.

2-valve cylinder head

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

Compact size

Lower installed cost
Mounting points are the same as previous engine models

John Deere electronic engine controls

Faster engine control unit (ECU) manages both the engine and the exhaust filter
Premium software option integrates with equipment or vehicles to reduce engineering and installation costs

Big-engine durability

Replaceable (wet) cylinder liners
Oil-cooled pistons with hardened ring groove insert
Full flow engine-mounted oil cooler
Up to 500-hour oil change

Additional features

Grid heater cold start aid
Single fluid solution
Engine or remote mounted fuel filters
Gear-driven auxiliary drives

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Specifications

John Deere

4045HG551

4.5L Generator Drive Engine

EU Stage V

Model

4045HG551

Number of cylinders

Displacement-- L (cu in)

4.5 (275)

Bore and Stroke-- mm (in)

106 x 127 (4.2 x 5.0)

Compression Ratio

17.1 : 1

Engine Type

In-line, 4-cycle

Aspiration

Turbocharged

Length - mm (in)

871 (34)

Width-- mm (in)

663 (26)

Height-- mm (in)

1024 (40)

Weight, dry - kg (lb)

506 (1116)

DOC/DPF

Size 2

SCR Catalyst

N/A

Rated power

55kW (74 hp) @ 2200-2400 rpm

Peak power

55kW (74 hp) @ 2200-2400 rpm

Application rating

Continuous

Peak torque

304 nM (224 lb-ft) @ 1600 rpm

Power bulge

Torque rise

39%

4045HG5514.5L Generator Drive Engine

Features

Stage V.

Wastegated turbocharger

Exhaust filters

High-pressure common-rail (HPCR)

2-valve cylinder head

Compact size

John Deere electronic engine controls

Big-engine durability

Additional features

Specifications

Emissions Certifications

General engine data

ATD

Performance data range

Power Connect

Customer Connections

Engine Parts

Explore More

Connect with us

Find Sales or Services

4045HG5514.5L Generator Drive Engine

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Features

Specifications

Emissions Certifications

General engine data

ATD

Performance data range

Power Connect

Customer Connections

Engine Parts

Explore More

Connect with us

Find Sales or Services