Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : 320 ➔
The Caterpillar 320 is a hydraulic excavator in Caterpillar's medium-size excavator lineup, used for earthmoving, trenching, site preparation, utility work, and general construction. It is typically equipped with a diesel engine, hydraulic system, boom and stick assembly, and a standard excavator undercarriage with a rotating upper structure. The 320 is available in multiple configurations and may include different boom lengths, bucket options, cab packages, and technology features depending on model year and market. It is commonly used in construction, infrastructure, and material handling applications where digging depth, reach, and cycle efficiency are important.
General Specifications
Caterpillar 320 Excavator General Specifications specifications
Digging Depth
22.00 ft (6.71 m) — Starting 2025 Model Year
Digging Reach
32.30 ft (9.85 m) — Starting 2025 Model Year
Engine
172.00 hp (128.26 kw) — Starting 2025 Model Year
Operating Weight
49,800.00 lbs (22,588.93 kg) — Starting 2025 Model Year
Dimensions
Caterpillar 320 Excavator Dimensions specifications
Boom
Reach 5.7 m (18'8") — Starting 2026 Model Year
Bucket
1.19 m ³ (1.56 yd³) — Starting 2026 Model Year
Counterweight Clearance
3.40 ft (1.04 m) — Starting 2026 Model Year
Ground Clearance
1.50 ft (0.46 m) — Starting 2026 Model Year
Handrail Height
9.70 ft (2.96 m) — Starting 2026 Model Year
Height
9.92 ft (3.02 m)
Length
31.33 ft (9.55 m)
Length to Center of Rollers
11.70 ft (3.57 m) — Starting 2026 Model Year
Shipping Height - Top of Cab
9.70 ft (2.96 m) — Starting 2026 Model Year
Shipping Length
31.30 ft (9.54 m) — Starting 2026 Model Year
Stick
Reach 2.9 m (9'6") — Starting 2026 Model Year
Tail Swing Radius
9.30 ft (2.83 m) — Starting 2026 Model Year
Track Gauge
7.80 ft (2.38 m) — Starting 2026 Model Year
Track Length
14.60 ft (4.45 m) — Starting 2026 Model Year
Transport Width
9.80 ft (2.99 m) — Starting 2026 Model Year
Weight
49,600.00 lbs (22,498.21 kg)
Width
10.42 ft (3.18 m)
Engine
Caterpillar 320 Excavator Engine specifications
Biodiesel Capability
Up to B20¹ — Starting 2026 Model Year
Bore
4.00 in (10.16 cm) — Starting 2026 Model Year
Displacement
269.00 cu in (4,408.13 cu cm) — Starting 2026 Model Year
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. — Starting 2026 Model Year
Engine Model
Cat® C4.4 — Starting 2026 Model Year
Engine Power - ISO 14396
174.00 hp (129.75 kw) — Starting 2026 Model Year
Engine Power - ISO 14396 (DIN)
176.00 hp (131.25 kw) — Starting 2026 Model Year
Net Power - ISO 9249
172.00 hp (128.26 kw) — Starting 2026 Model Year
Net Power - ISO 9249 (DIN)
175.00 hp (130.50 kw) — Starting 2026 Model Year
Stroke
5.00 in (12.70 cm) — Starting 2026 Model Year
Hydraulic System
Caterpillar 320 Excavator Hydraulic System specifications
Main System - Maximum Flow
429.00 lpm (113.34 gpm) — Starting 2026 Model Year
Maximum Pressure - Equipment
5075 psi — Starting 2026 Model Year
Maximum Pressure - Equipment - Lift Mode
5510 psi — Starting 2026 Model Year
Maximum Pressure - Swing
3988 psi — Starting 2026 Model Year
Maximum Pressure - Travel
4974 psi — Starting 2026 Model Year
Service Refill Capacities
Caterpillar 320 Excavator Service Refill Capacities specifications
Cooling System
6.60 gal (24.98 l) — Starting 2026 Model Year
DEF Tank
10.30 gal (38.99 l) — Starting 2026 Model Year
Engine Oil
4.00 gal (15.14 l) — Starting 2026 Model Year
Final Drive - Each
1.10 gal (4.16 l) — Starting 2026 Model Year
Fuel Tank Capacity
91.10 gal (344.81 l) — Starting 2026 Model Year
Hydraulic System - Including Tank
61.80 gal (233.91 l) — Starting 2026 Model Year
Hydraulic Tank
30.40 gal (115.06 l) — Starting 2026 Model Year
Swing Drive
1.60 gal (6.06 l) — Starting 2026 Model Year
Sustainability
Caterpillar 320 Excavator Sustainability specifications
Recyclability
97% — Starting 2026 Model Year
Swing Mechanism
Caterpillar 320 Excavator Swing Mechanism specifications
Maximum Swing Torque
60,300.00 lbs ft (81,754.74 nm) — Starting 2026 Model Year
Swing Speed*
11.25 r/min — Starting 2026 Model Year
Weights
Caterpillar 320 Excavator Weights specifications
Operating Weight
49,800.00 lbs (22,588.93 kg) — Starting 2026 Model Year
Working Ranges And Forces
Caterpillar 320 Excavator Working Ranges And Forces specifications
Boom
Reach 5.7 m (18'8") — Starting 2026 Model Year
Bucket
1.19 m ³ (1.56 yd³) — Starting 2026 Model Year
Bucket Digging Force - ISO
31,586.00 lbs ft (42,824.30 nm) — Starting 2026 Model Year
Maximum Cutting Height
30.70 ft (9.36 m) — Starting 2026 Model Year
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
21.50 ft (6.55 m) — Starting 2026 Model Year
Maximum Digging Depth
22.00 ft (6.71 m) — Starting 2026 Model Year
Maximum Loading Height
21.30 ft (6.49 m) — Starting 2026 Model Year
Maximum Reach at Ground Level
32.30 ft (9.85 m) — Starting 2026 Model Year
Maximum Vertical Wall Digging Depth
17.00 ft (5.18 m) — Starting 2026 Model Year
Minimum Loading Height
7.10 ft (2.16 m) — Starting 2026 Model Year
Stick
Reach 2.9 m (9'6") — Starting 2026 Model Year
Stick Digging Force - ISO
23,987.00 lbs ft (32,521.58 nm) — Starting 2026 Model Year
