Caterpillar 321C Hydraulic Excavator
From RitchieWiki
[edit] Features
The 321C has a Cat 3066 air-to-air after-cooled engine producing 140 flywheel horsepower (FWHP). It comes standard with a new operator station and upper frame.
The 321C was manufactured in Japan, with DAX, KBB, KCR, or MCF serial number prefix.
The DAX unit has an operating weight of 49,940 pounds (22,700 kg). All other units have an operating weight of 52,800 lbs (24,000 kg).

