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Cat® 320D3 GC

Operating weight
19800 kg
New power in HP
85 kW
Bucket capacity
GD .92 m³ (1.20 yd³)
  • The Cat® 320D3 GC Hydraulic Excavator delivers reduced fuel consumption by up to 15 percent, lowered maintenance costs by up to 20 percent, low owning costs, simpler routine maintenance, increased performance, and long-term durability.

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Up To
Lower Fuel Consumption

Two power modes, new plane cooler and hydraulic boom regeneration offer the power you need when you need it, helping to increase your overall efficiency and saving energy.

Best in Class Reliability & Returns

Increased uptime with premium, time-proven components delivering an exceptional return on investment.

Up To
Lower Maintenance Costs

With 12% less refill oil volume than the 320D3 and reduced frequency of refills increases uptime and reduces cost.

6-cylinder robust mechanical engine for improved reliability. New modified X‐frame structure for longer life and durability.

The 320D3 GC offers up to 30% lower fuel consumption against previous comparable models.

Save time and money with extended service intervals for hydraulics and coolants. New hydraulic oil filter with 50 percent more life.

Operators will never feel as comfortable with an ergonomically designed cab with easy-to-operate controls

Hydraulic activation lever safely locks out all hydraulic functions Anti‐skid plating and countersunk bolts reduce slipping in severe conditions and during routine checks


Net Power - ISO 9249 114 HP
Engine Model ALUW06DTI
Engine Power - ISO 14396 134 HP
Bore 4 in
Stroke 4 in
Displacement 351 in³

Main System - Maximum Flow 400 l/min (106 gal/min)
Maximum Pressure - Equipment 5075 psi
Maximum Pressure - Travel 5075 psi
Maximum Pressure - Swing 3625 psi

Swing Speed 10 r/min
Maximum Swing Torque 45581 ft·lbf

Operating Weight 43600 lb

Fuel Tank Capacity 92.5 gal (US)
Cooling System 5 gal (US)
Engine Oil 4.8 gal (US)
Swing Drive - Each 1.6 gal (US)
Final Drive - Each 1.3 gal (US)
Hydraulic System - Including Tank 60.8 gal (US)
Hydraulic Tank 29.1 gal (US)

Boom Reach 5.7 m (18'8")
Stick Reach 2.25 m (7'5")
Bucket GD .92 m³ (1.20 yd³) GD .92 m³ (1.20 yd³)
Shipping Height - Top of Cab 10.4 ft
Handrail Height 9.7 ft
Shipping Length 31.3 ft
Tail Swing Radius 9 ft
Counterweight Clearance 1.6 ft
Ground Clearance 1.6 ft
Track Length 13.5 ft
Length to Center of Rollers 10.9 ft 3270 mm
Track Gauge 7.3 ft
Transport Width 9.2 ft

Maximum Digging Depth 19.7 ft
Boom Reach 5.7 m (18'8")
Stick Reach 2.5 m (8'2")
Bucket GD .92 m³ (1.20 yd³)
Maximum Reach at Ground Level 30 ft
Maximum Cutting Height 29.11 ft
Maximum Loading Height 20.6 ft
Minimum Loading Height 9.7 ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 18.6 ft
Maximum Vertical Wall Digging Depth 17.7 ft
Bucket Digging Force - ISO 30120 lbf
Stick Digging Force - ISO 25180 lbf

Cat buckets and Cat Ground Engaging Tools (GET) are designed and matched to the machine to ensure optimal performance and fuel efficiency.


Center-Lock is a pin grabber coupler and features a patent-pending locking system. A highly visible secondary lock clearly shows the operator when the coupler is engaged or disengaged from the bucket or work tool..


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