Stage IIIB Base Engine 3.0L

The new JCB 3.0 litre EU Stage IIIB engine is revolutionary product offering a compact four cylinder engine, which has been developed for the most demanding off-highway applications.

With future emission demands at its core, the new engine utilises state of the art technology whilst building on JCB’s award winning design philosophies of class leading fuel consumption, high torque, heavy duty design and low in cylinder emissions. The new DIESELMAX is smaller, lighter, more cost effective to operate and easier to maintain than any other engine before it.



  • Compact. 24% smaller than a 4.4L EcoMAX
  • Weight. 30% lighter than a 4.4L EcoMAX
  • Award winning. No after-treatment EU Stage IIIB
  • Fuel efficient. Real world fuel savings of up to 8% over 4.4L EcoMAX
  • Innovative. State of the art particulate and NOx control technologies for EU Stage V
  • High torque at low speed. Power where you need it most

55kW (74hp)

 Maximum rating (gross intermittent)  55kW (74hp) 
 At speed 2200rpm 
 Peak Torque 400 Nm (295 lb-ft) 
 Peak Torque Speed 1200-1250rpm 
 Maximum no load governed speed 2200rpm 
 Nominal idling speed 850-950rpm 
 Thermodynamic Cycle Diesel 4 Stroke 
 Air Intake TCAE 
 Arrangement In-line 4 cyl 
 Displacement 3.0L 
 Nominal Bore 92mm (3.62in) 
 Stroke 112mm (4.41in)