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The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a new comfortable cab, reduced fuel consumption by up to 20%, and longer maintenance intervals reducing maintenance costs by up to 15% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.


Engine Model Cat C4.4 ACERT Cat C4.4 ACERT Less
Net Flywheel Power 121.0 HP 90.0 kW Less
Bore 4.0 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 269.0 in³ 4.4 l Less
Gross Power - SAE J1995 122.0 HP 91.0 kW Less
Net Power - SAE J1349 121.0 kW 90.0 HP Less
Engine RPM - Operation 1700.0 r/min 1700.0 r/min Less
Engine RPM - Travel 2000.0 r/min 2000.0 r/min Less


Note (1) Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 790mm(31 ") TG shoes, Counterweight (4.2mt / 9,260lb) Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 790mm(31 ") TG shoes, Counterweight (4.2mt / 9,260lb) Less
Operating Weight - North America 48281.0 lb 21900.0 kg Less
Note (2) Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 700mm(28 ") TG shoes, Counterweight (4.2mt / 9,260lb) Standard Undercarriage, Reach Boom, R 2.9 (9'6")Stick, HD 1.0 m3 (1.31yd3 ) bucket and 700mm(28 ") TG shoes, Counterweight (4.2mt / 9,260lb) Less
Operating Weight - Europe 46958.0 lb 21300.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 86.6 gal (US) 345.0 l Less
Cooling System 6.6 gal (US) 25.0 l Less
Engine Oil 4.0 gal (US) 15.0 l Less
Final Drive - Each 1.3 gal (US) 5.0 l Less
Hydraulic System - Including Tank 61.8 gal (US) 234.0 l Less
Hydraulic Tank 30.4 gal (US) 115.0 l Less
DEF Tank 10.3 gal (US) 39.0 l Less
Swing Drive - Each 1.3 gal (US) 5.0 l Less


Maximum Swing Torque 54440.0 ft·lbf 74.0 null Less
Swing Speed 11.6 r/min 11.6 r/min Less


Maximum Drawbar Pull 46131.0 lbf 205.0 kN Less
Maximum Travel Speed 3.6 mile/h 5.9 km/h Less
Maximum Gradeability 35°--70% 35°--70% Less

Hydraulic System

Main System - Maximum Flow - Total 116.0 gal/min 442.0 l/min Less
Maximum Pressure - Equipment - Normal 5075.0 psi 35000.0 kPa Less
Maximum Pressure - Swing 3886.0 psi 26800.0 kPa Less
Maximum Pressure - Travel 4974.0 psi 34300.0 kPa Less

Working Ranges - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Bucket Digging Force (ISO) 28935.0 lbf 129.0 kN Less
Bucket Digging Force (SAE) 25759.0 lbf 115.0 kN Less
Stick Digging Force (ISO) 22281.0 lbf 99.0 kN Less
Stick Digging Force (SAE) 21678.0 lbf 96.0 kN Less
Maximum Cutting Height 31.0 ft 9450.0 mm Less
Maximum Depth Cut for 2440 mm (8'0") Level Bottom 21.5 ft 6550.0 mm Less
Maximum Digging Depth 22.0 ft 6720.0 mm Less
Maximum Loading Height 21.3 ft 6490.0 mm Less
Maximum Reach - Ground Level 32.3 ft 9860.0 mm Less
Maximum Vertical Wall Digging Depth 18.7 ft 5690.0 mm Less
Minimum Loading Height 7.1 ft 2170.0 mm Less

Dimensions - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Counterweight Clearance 3.4 ft 1050.0 mm Less
Note With HD 1.0m3 bucket and 790 mm shoes. With HD 1.0m3 bucket and 790 mm shoes. Less
Shipping Height 9.7 ft 2960.0 mm Less
Shipping Length 31.3 ft 9530.0 mm Less
Track Gauge 7.2 ft 2200.0 mm Less
Track Length - Center of Rollers 10.7 ft 3270.0 mm Less
Transport Width - 790 mm (31 in) Shoes 10.4 ft 3170.0 mm Less

Dimensions - Reach Boom - 5.7 m (18'8"); R2.9 (9'6") Stick

Ground Clearance 1.5 ft 470.0 mm Less
Tail Swing Radius 9.3 ft 2830.0 mm Less

High Performance with Lower Fuel Consumption

  • Use up to 20% less fuel than the 320F excavators.
  • Match the excavator to the job using power modes including new Smart Mode that automatically matches engine and hydraulic power to digging conditions.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.
  • Your joystick commands adjust pump flow based on valve priority putting hydraulic pressure and flow where it needs to go giving you improved fast light-to-medium load cycle times.
  • The electronically controlled, turbocharged engine meets U.S. EPA Tier 4 Final and EU Stage IV emissions standards using a transparent aftertreatment system that requires no operator input or downtime.
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
  • Don't let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 125 º F (52º C) and cold start capability of 0º F (-18º C). An optional -25º F (-32º C) cold start package is available .
  • Work up to 9,480 feet (3000 meters) above sea level without de-rating.
  • Track your performance through standard Product Link that provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes and other machine data on demand through VisionLink ® online interface.

320GC Standard Equipment

  • Cat C4.4 ACERT™ electronically-controlled turbo-charged Tier 4 Final diesel engine
  • Meets U.S. EPA Tier 4 Final and EU Stage IV emissions standards.
  • Two selectable power modes
  • One-touch low idle with automatic engine speed control
  • Automatic engine idle shutdown
  • Recommended for use up to 4500 m altitude (14,764 ft) with engine power derate above 3000 m (9,842.5 ft).
  • 52° C (125° F) high-ambient cooling capacity
  • Cold starting capability for - 32° C (- 25° F)
  • Double element air filter with integrated pre-cleaner
  • Electric fuel priming pump
  • Reversible electric cooling fans
  • Biodiesel capability up to B20

  • Boom and stick regeneration circuits
  • Electronic main control valve
  • Auto warm up
  • Automatic two-speed travel
  • Boom and stick drift reduction valve
  • Element type main hydraulic filter
  • 3 Buttons Joysticks
  • Electronic main pump
  • Electric refueling pump(Europe only)

  • ROPS, standard sound suppression
  • High-resolution 8 " (203 mm) LCD touchscreen monitor
  • Automatic Bi-level air conditioner
  • Jog dial and shortcut keys for monitor control
  • Keyless push-to-start engine control
  • Height-adjustable console, 3-steps with tool
  • Mechanically adjustable seat suspension
  • Seat belt, retractable (51 mm [2"] width)
  • Fixed left side console
  • Bluetooth® integrated radio with USB ports
  • 12V DC outlets
  • Document storage
  • Cup and bottle holders
  • Two-piece front window, openable
  • Steel hatch, openable
  • Upper radial wiper with 70/30 w/washer
  • LED dome and lower interior lights
  • Roller front sunscreen
  • Beacon ready
  • Washable floor mat
  • Straight travel pedal (US Only)

  • Tiedown points on base frame (ISO 15818 Compliant)
  • Standard bottom guards
  • Standard travel motor guards
  • Grease lubricated track links
  • (4200 kg ( 9,260lb) counterweight
  • Standard swing frame
  • Standard swing bearing
  • Base frame with standard track rollers and standard carrier rollers
  • Final drive with standard travel motor

  • Machine electronic control module (x2)
  • 1000 CCA maintenance-free batteries (x2)
  • Centralized electrical disconnect switch
  • Programmable time-delay LED working lights
  • LED chassis light, LH boom light for reach-850 lumens

  • 5.7 m (18'8") reach boom
  • 2.9 m (9'6") stick
  • 790 mm (31" ) triple grouser track shoes
  • Bucket linkage, B1-family with lifting eye

  • Rearview camera and side RH mirror
  • Rear and right hand sideview camera (Europe)
  • Neutral lever (lock out) for all controls
  • Anti-skid plate and countersunk bolts on service platform
  • Ground-level accessible secondary engine shutoff switch in cab
  • RH hand rail and hand hold (ISO 2867 compliant)
  • Travel alarm (US only)

  • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Grouped location for engine oil and fuel filters
  • Ground level 2nd dipstick for engine oil
  • Remote flash

  • Cat Product Link™

320GC Optional Equipment

  • Hammer return filter circuit
  • Combined flow/high pressure aux circuit
  • Simplified combined Circuit (2 Way)
  • Quick coupler circuit for Cat Pin Grabber
  • Slider joysticks
  • Smart boom (Europe only)

  • LED chassis light, LH & RH boom lights for reach, cab lights- 850 lumens

  • Roller rear suncreen

  • Radiator screen
  • RH side mirror for use with RH sideview camera or 360° visibility (Europe)

  • Heavy duty buckets 1.0m3(1.31yd3)