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Key specifications
- Operating Weight
- 46,300 lb (21,000 kg)
- Operating Weight (Std UC)
- 43,400 lb (19,700 kg)
- Engine Power
- 138 hp (103 kW) Net Flywheel Power
- Engine Model
- Cat 3066T (turbocharged)
- Fuel Tank
- 106 gal (400 L)
- Hydraulic Flow
- 54.2 gpm (205 L/min)
Model overview
The Cat 320C L is the long-undercarriage variant of the 320C medium excavator, offering enhanced stability and lifting capacity in the 21-ton class. The 'L' undercarriage configuration provides better balance for truck loading and lifting operations while maintaining excellent transportability. Powered by the Cat 3066T turbocharged diesel engine at 138 hp, the 320C L delivers the same proven C-series performance with faster cycle times and higher productivity than previous generations. Features include hydraulic cross-sensing system, automatic boom and swing priority, boom/stick regeneration circuits, and optional Tool Control System for managing multiple attachments.
At a glance
Operating Weight21,000 kg (long UC)
Net Power103 kW (138 hp)
Hydraulic Flow205 L/min
Swing Torque61.8 kN·m
Specifications sourced from h-cpc.cat.com (official manufacturer page).

