Stage IV/Tier 4 Final Base Engine

A clean sheet of paper at the outset of the engine program at JCB has provided a unique position where we have been able to offer an engine with class-leading reliability, long service intervals, high efficiency and excellent fuel economy.

Features

  • Increased up time
  • No after treatment for 55kW (74Hp) Tier 4
  • Exceptional transient performance
  • Increased torque levels at low speed, to 400Nm (295lb-ft)
  • Constant power curve feature
  • Reduced whole life costs

Specifications

Displacement
4.4/4.8L
Peak Torque
Up to 690Nm
Rating
55kW (74hp)

108KW (145hp) to 129kW (173hp)

Maximum rating (gross intermittent)

108kW (145hp)

129kW (173hp)

At speed

2200 rpm

2050 rpm

Peak Torque

560 Nm (413 lb-ft)

690 Nm (456.6 lb-ft)

Peak Torque Speed

1500 rpm

1500 rpm

Maximum no load governed speed

2450 rpm

2450 rpm

Nominal Idling Speed

850 rpm

850 rpm

Thermodynamic Cycle

Diesel 4 Stroke

Diesel 4 Stroke

Air Intake

TCAE

TCAE

Arrangement

4.8L

4.8L

Nominal bore

106 mm (4.17")

106 mm (4.17")

Stroke

135 mm (5.31")

135 mm (5.31")

55kW (74hp)

Maximum rating (gross intermittent)

55kW (74hp)

At speed

2200 rpm

Peak Torque

400 Nm (295 lb-ft)

Peak Torque Speed

1200-1300 rpm

Maximum no load governed speed

2200 rpm

Nominal Idling

850 rpm

Thermodynamic Cycle

Diesel 4 Stroke

Air Intake

TCAE

Arrangement

4.4L

Nominal bore

103 mm (4.06”)

Stroke

132 mm (5.20”)

68kW (74hp) to 93kW (125hp)

Maximum rating (gross intermittent)

68kW (91hp)

81kW (108hp)

93kW (125hp)

At speed

2200 rpm

2200 rpm

2200 rpm

Peak Torque

433 Nm (319 lb-ft)

516 Nm (380 lb-ft)

550 Nm (406 lb-ft)

Peak Torque Speed

1500 rpm

1500 rpm

1500 rpm

Maximum no load governed speed

2450 rpm

2450 rpm

2450 rpm

Nominal Idling Speed

850 rpm

850 rpm

850 rpm

Thermodynamic Cycle

Diesel 4 Stroke

Diesel 4 Stroke

Diesel 4 Stroke

Air Intake

TCAE

TCAE

TCAE

Arrangement

4.4L

4.4L

4.4L

Nominal bore

103mm (4.06")

103mm (4.06")

103mm (4.06")

Stroke

132 mm (5.20")

132 mm (5.20")

132 mm (5.20")