John Deere JD4G Industrial Diesel Engine

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All Product Lines / John Deere Products / Engines and Drivetrain / Industrial Diesel Engines / Final Tier 4 (EPA Only) / JD4G Industrial Diesel Engine

JD4G Industrial Diesel Engine Model Photo

Features
Specs

Features

Wastegated turbocharger

Wastegated turbochargers are designed to develop more airflow at lower engine speeds to improve low-speed torque.

Exhaust filters

This engine utilizes a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF).

Selective catalytic reduction (SCR)

This engine features an SCR system that utilizes a urea-based additive, sometimes referred to as diesel exhaust fluid (DEF).

High-pressure common-rail (HPCR) and engine control unit (ECU)

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

Compact size

Smaller space claim
Simplifies installation

Engine performance

Multiple rated speeds to further reduce noise and improve fuel economy
Higher level of peak torque
Optional power bulge

Rear gear train

The engine features a rear gear train, which produces excellent direct power and options up to two rear aux drives and provide quiet operation.

Additional features

Gear-driven auxiliary drives
750 hour minimum
Self-adjusting poly-vee fan drive
Engine mounted or remote mounted aftertreatment
Optional rear PTO
Single overhead cam

Emissions Certifications

EPA Final Tier 4
EU Stage V

General engine data

Model	4040HI550
Number of cylinders	4
Displacement-- L (cu in)	3.9 (238)
Bore and Stroke-- mm (in)	99 x 128 (3.9 x 5.0)
Engine Type	In-line, 4-cycle
Aspiration	Turbocharged and air-to-air aftercooled
Length - mm (in)	700 (28)
Width-- mm (in)	680 (27)
Height-- mm (in)	810 (32)
Weight, dry - kg (lb)	<460 kg (<1014 lb)

Performance data range

Rated power	63-120 kW (84-161 hp)
Peak power	120 kW (161 hp)
Application Rating	Continuous, Heavy Duty, Intermittent
Peak torque	700 Nm (516 lb-ft)
Power bulge	Up to 8%
Torque rise	Up to 34%

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