Category : Off-Highway Trucks ➔ Manufacturer : Caterpillar ➔ Model : 773D ➔
The Caterpillar 773D is an off-highway haul truck designed for mining, quarry, and large earthmoving applications. It is part of Caterpillar's 773 series and is used to transport high volumes of material over rough terrain and unpaved haul roads. The 773D typically features a rigid frame, rear dump body, diesel powertrain, and heavy-duty suspension for load carrying and site durability. Common applications include overburden removal, aggregate hauling, and construction material transport. The model is recognized for its serviceability, operator visibility, and compatibility with demanding fleet operations in off-road environments.
Body Hoists
Caterpillar 773D Off-Highway Truck Body Hoists specifications
Body Lower Time - Float
12.5 seconds
Body Raise Time - High Idle
9.5 seconds
Pump Flow - High Idle
148.46 gpm (561.92 lpm)
Relief Valve Setting - Raise
2498.27 psi
Dimensions
Caterpillar 773D Off-Highway Truck Dimensions specifications
Centerline Front Tire Width
10.80 ft (3.29 m)
Dump Ground Clearance
2.30 ft (0.70 m)
Dump Height
28.90 ft (8.81 m)
Front Canopy Height
14.60 ft (4.45 m)
Ground Clearance
2.00 ft (0.61 m)
Inside Body Length
21.30 ft (6.49 m)
Loading Height - Empty
12.50 ft (3.81 m)
Operating Width
12.90 ft (3.93 m)
Overall Height
13.20 ft (4.02 m)
Overall Height - Body Raised
29.00 ft (8.84 m)
Overall Length
31.80 ft (9.69 m)
Overall Width
14.70 ft (4.48 m)
Wheel Base
13.80 ft (4.21 m)
Wheelbase
13.80 ft (4.21 m)
Dump
Caterpillar 773D Off-Highway Truck Dump specifications
Load Capacity - heaped
46.10 cu yd (35.24 cu m)
Load Capacity - Struck
34.80 cu yd (26.61 cu m)
Lower Time
12.5 seconds
Raise Time
9.5 seconds
Engine
Caterpillar 773D Off-Highway Truck Engine specifications
Bore
5.40 in (13.72 cm)
Displacement
1,647.70 cu in (27,001.03 cu cm)
Engine Model
Cat 3412E TA-HEUI
Flywheel Power
650.00 hp (484.71 kw)
Gross Power
682.60 hp (509.02 kw)
Gross Power - SAE J1995
650.00 hp (484.71 kw)
Max Torque
1,706.80 lbs ft (2,314.08 nm)
Net Power
643.70 hp (480.01 kw)
Net Power - 80/1269/EEC
34.00 hp (25.35 kw)
Net Power - Cat
650.00 hp (484.71 kw)
Net Power - ISO 9249
41.00 hp (30.57 kw)
Net Power - SAE J1349
53.60 hp (39.97 kw)
Number of Cylinders
12
Power Measured @
2000 rpm
Stroke
6.00 in (15.24 cm)
Final Drives
Caterpillar 773D Off-Highway Truck Final Drives specifications
Planetary Ratio
Planetary
Operating Specifications
Caterpillar 773D Off-Highway Truck Operating Specifications specifications
Body Capacity - SAE 2:1
44.60 cu yd (34.10 cu m)
Body Capacity - Struck
34.00 cu yd (25.99 cu m)
Brake/Hoist System Fluid Capacity
35.20 gal (133.23 l)
Circle Clearance Diameter
78.80 ft (24.02 m)
Cooling System Fluid Capacity
36.20 gal (137.02 l)
Diff and Final Drive Fluid Capacity
37.00 gal (140.05 l)
Engine Oil Capacity
20.10 gal (76.08 l)
Fuel Capacity
185.00 gal (700.23 l)
Lower Time
12.5 seconds
Maximum Capacity
96,260.00 lbs (43,655.33 kg)
Nominal Payload Class (100%)
96,260.00 lbs (43,655.33 kg)
Operating Voltage
24 volts
Raise Time
9.5 seconds
Steering System Fluid Capacity
9.00 gal (34.07 l)
Tire Size
24.00R35
Top Speed - Loaded
41.00 mph (65.98 kph)
Service Refill Capacities
Caterpillar 773D Off-Highway Truck Service Refill Capacities specifications
Brake Hoist System - Includes Tank
103.90 gal (393.26 l)
Cooling System
39.90 gal (151.02 l)
Fuel Tank
185.00 gal (700.23 l)
Steering System - Including Tank
21.40 gal (81.00 l)
Steering Tank
14.60 gal (55.26 l)
Torque Converter - Brake - Hoist Hydraulic Tank
58.20 gal (220.29 l)
Torque Converter - Transmission System - Including Sump
26.50 gal (100.30 l)
Tires
Caterpillar 773D Off-Highway Truck Tires specifications
Standard Tire
24.00R35 (E-4)
Transmission
Caterpillar 773D Off-Highway Truck Transmission specifications
Forward - 1
6.30 mph (10.14 kph)
Forward - 2
8.60 mph (13.84 kph)
Forward - 3
11.70 mph (18.83 kph)
Forward - 4
15.60 mph (25.11 kph)
Forward - 5
21.20 mph (34.12 kph)
Forward - 6
28.60 mph (46.03 kph)
Forward - 7
40.90 mph (65.82 kph)
Max Speed
38.70 mph (62.28 kph)
Number of Gears - Forward
7
Number of Gears - Reverse
1
Reverse
7.46 mph (12.01 kph)
Weights
Caterpillar 773D Off-Highway Truck Weights specifications
Empty Weight
87,082.60 lbs (39,493.24 kg)
Front Axle - Empty
47.3%
Front Axle - Loaded
33.3%
Loaded Weight
219,007.20 lbs (99,323.00 kg)
Operating Weight - Loaded
204,000.00 lbs (92,517.01 kg)
Rear Axle - Empty
52.7%
Rear Axle - Loaded
66.7%
Weight Distribution Front - empty
47.3%
Weight Distribution Front - loaded
33.3%
Weight Distribution Rear - empty
52.7%
Weight Distribution Rear - loaded
66.7%
