Compare Excavators. Choose Smarter.
CAT 320D VS CAT 320D3 Comparison
CAT 320D
₹ 22 L - 23.99 L
VS
CAT 320D3
₹ 25 L - 28 L
CAT 320D
₹22L
CAT 320D3
₹25L
Compare excavators helps you make an informed purchase decision.
CAT 320D
From ₹ 22 Lakh
CAT 320D3
From ₹ 25 Lakh
Engine
Model
CAT 3066TA
Cat ALUW06DTI
Model
CAT 3066TA
Cat ALUW06DTI
Gross Power
112.8 kw
100 kw
Gross Power
112.8 kw
100 kw
Net Power
104 kw
85 kw
Net Power
104 kw
85 kw
Engine Power
140 HP
134 HP
Engine Power
140 HP
134 HP
Engine Displacement
6370 cc
5760 cc
Engine Displacement
6370 cc
5760 cc
Number Of Cylinders
6 Nos
6 Nos
Number Of Cylinders
6 Nos
6 Nos
Rated RPM
1800 rpm
1700 rpm
Rated RPM
1800 rpm
1700 rpm
Emission Standard
BS IV
BS IV
Emission Standard
BS IV
BS IV
Max Torque
650 Nm
620 Nm
Max Torque
650 Nm
620 Nm
Fuel Type
Diesel
Diesel
Fuel Type
Diesel
Diesel
Operating Weight
Operating Weight
20330 kg
45860 kg
Operating Weight
20330 kg
45860 kg
Machine Weight
20300 kg
42478 kg
Machine Weight
20300 kg
42478 kg
Counter Weight
4200 kg
10211 kg
Counter Weight
4200 kg
10211 kg
Ground Pressure
55 kg
44 kg
Ground Pressure
55 kg
44 kg
Hydraulic System
Main Pump Type
Variable displacement axial piston
Variable displacement axial piston pumps
Main Pump Type
Variable displacement axial piston
Variable displacement axial piston pumps
Maximum Hydraulic Flow
205 L/min
420 L/min
Maximum Hydraulic Flow
205 L/min
420 L/min
Maximum System Pressure
350 bar
350 bar
Maximum System Pressure
350 bar
350 bar
Hydraulic Oil Capacity
260 litres
234 litres
Hydraulic Oil Capacity
260 litres
234 litres
Auxiliary Hydraulic Flow
60 L/min
150 L/min
Auxiliary Hydraulic Flow
60 L/min
150 L/min
Working Range
Max Digging Depth
6720 mm
6300 mm
Max Digging Depth
6720 mm
6300 mm
Max Vertical Wall Digging Depth
6980 mm
5720 mm
Max Vertical Wall Digging Depth
6980 mm
5720 mm
Max Reach at Ground Level
10790 mm
9470 mm
Max Reach at Ground Level
10790 mm
9470 mm
Max Dumping Height
6940 mm
6710 mm
Max Dumping Height
6940 mm
6710 mm
Max Cutting Height
9960 mm
9250 mm
Max Cutting Height
9960 mm
9250 mm
Boom Length
5.700 m
5.700 m
Boom Length
5.700 m
5.700 m
Arm Length
2.5 mm
2500 mm
Arm Length
2.5 mm
2500 mm
Bucket Breakout Force
135 kN
143 kN
Bucket Breakout Force
135 kN
143 kN
Arm Tear-out Force
118 kN
99 kN
Arm Tear-out Force
118 kN
99 kN
Capacities
Fuel Tank Capacity
410 litres
410 litres
Fuel Tank Capacity
410 litres
410 litres
Hydraulic Tank Capacity
120 litres
115 litres
Hydraulic Tank Capacity
120 litres
115 litres
Cooling System Capacity
25 litres
40 litres
Cooling System Capacity
25 litres
40 litres
Engine Oil Capacity
30 litres
25 litres
Engine Oil Capacity
30 litres
25 litres
Swing Drive Oil Capacity
8 litres
5 litres
Swing Drive Oil Capacity
8 litres
5 litres
Final Drive Gear Oil Capacity
6 litres
16 litres
Final Drive Gear Oil Capacity
6 litres
16 litres
Under Carriage
Track Shoe Width
600 mm
600 mm
Track Shoe Width
600 mm
600 mm
Track Gauge
2200 mm
2200 mm
Track Gauge
2200 mm
2200 mm
Track Length on Ground
3265 mm
4,080 mm
Track Length on Ground
3265 mm
4,080 mm
Ground Clearance
450 mm
450 mm
Ground Clearance
450 mm
450 mm
Tail Swing Radius
2750 mm
2750 mm
Tail Swing Radius
2750 mm
2750 mm
Undercarriage Type
Crawler – Steel Tracks
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Undercarriage Type
Crawler – Steel Tracks
Grease-lubricated track links with segmented & center guiding guards (standard Cat undercarriage)
Steering & Brakes
Overall Length
9450 mm
9530 mm
Overall Length
9450 mm
9530 mm
Overall Width
2800 mm
2800 mm
Overall Width
2800 mm
2800 mm
Overall Height
3050 mm
3050 mm
Overall Height
3050 mm
3050 mm
Cab Height
2950 mm
3050 mm
Cab Height
2950 mm
3050 mm
Boom Height
3.050 m
3.200 m
Boom Height
3.050 m
3.200 m
Track Width
600 mm
600 mm
Track Width
600 mm
600 mm
Performances
Travel Speed
5.6 km/h
5.5 km/h
Travel Speed
5.6 km/h
5.5 km/h
Swing Speed
10.5 rpm
11.5 rpm
Swing Speed
10.5 rpm
11.5 rpm
Gradeability
30 %
70 %
Gradeability
30 %
70 %
Drawbar Pull
205 kN
205 kN
Drawbar Pull
205 kN
205 kN
Bucket And Attachments
Bucket Capacity
1 Cu.m
0.92 Cu.m
Bucket Capacity
1 Cu.m
0.92 Cu.m
Bucket Options
0.57–1.56
0.9 – 1.2
Bucket Options
0.57–1.56
0.9 – 1.2
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Attachment Compatibility
Standard Cat thumb, breaker, auger, tilt‑rotator kits
GP, HD, Rock Breaker, Auger, Thumb, Grapple, Ripper
Cabin And Controls
Cabin AC
Yes
Yes
Cabin AC
Yes
Yes
Display Type
LCD monitor on newer versions
LCD Monitor
Display Type
LCD monitor on newer versions
LCD Monitor
Joystick Controls
Yes
Yes
Joystick Controls
Yes
Yes
Seat Type
Air suspension available
Adjustable suspension seat
Seat Type
Air suspension available
Adjustable suspension seat
Noise Level
75 dB(A)
72 dB(A)
Noise Level
75 dB(A)
72 dB(A)
Safety Features
-
-
Safety Features
-
-
Electrical System
Battery
24 V
2x12 V
Battery
24 V
2x12 V
Alternator Output
70 A
80 A
Alternator Output
70 A
80 A
Lighting Type
Halogen
Halogen
Lighting Type
Halogen
Halogen
Additional Features
Auto Idle
Yes
Yes
Auto Idle
Yes
Yes
Eco Mode
Yes
Yes
Eco Mode
Yes
Yes
Telematics
Yes
Yes
Telematics
Yes
Yes
Diagnostic System
Yes
Yes
Diagnostic System
Yes
Yes
CAT 320D
Pros
- Proven Cat C6.4 ACERT engine with solid torque and power for mid‑size excavator tasks (earthmoving, trenching, loading).
- 5.7 m boom and ~9+ m digging height help in both shallow and medium depth work.
- Caterpillar’s dealer network is extensive — spare parts availability is usually strong globally.
CAT 320D3
Pros
- Strong engine performance for a 20-ton class excavator: 134 HP gross (100 kW), ~114 HP net. Great for heavy digging and lifting tasks.
- Typically well-insulated, ergonomically arranged operator cab with adjustable suspension seat, good visibility, and modern controls.
- Selectable power modes (Power, Smart, Eco) improve fuel efficiency depending on task.
