The 66,380-lb. 555C Extra features a 10.8-liter, turbocharged, in-line six-cylinder Cummins QSM11 engine delivering 319 net hp at 2,100 rpm or 330 net hp with minimum fan usage.
- Maximum torque of 1,235 lb.-ft. at 1,400 rpm
- Available with buckets ranging from 5.5 to 11 cu. yds.
- Electrically controlled, full powershift, four-speed countershaft transmission
- Features include hydrostatic steering, single-lever hydraulic controls, internal wet disc brakes and a variable-speed cooling fan