- 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. Built for high-capacity material transport, the 773D features a rigid frame, diesel powertrain, and heavy-duty suspension for operation on rough haul roads and demanding site conditions. It is commonly used to move overburden, aggregate, and other bulk materials in production environments. The model is part of Caterpillar's off-highway truck lineup and is recognized for its serviceability, durability, and compatibility with large-scale material handling operations. The 773D is typically configured for high payload performance and continuous duty cycles in industrial and construction fleets.
Body Hoists
| Body Lower Time - Float | 12.5 seconds
|
| Body Raise Time - High Idle | 9.5 seconds
|
| Pump Flow - High Idle | 148 gpm (562 lpm)
|
| Relief Valve Setting - Raise | 2498.27 psi
|
Dimensions
| Centerline Front Tire Width | 11 ft (3 m)
|
| Dump Ground Clearance | 2 ft (1 m)
|
| Dump Height | 29 ft (9 m)
|
| Front Canopy Height | 15 ft (4 m)
|
| Ground Clearance | 2 ft (1 m)
|
| Inside Body Length | 21 ft (6 m)
|
| Loading Height - Empty | 13 ft (4 m)
|
| Operating Width | 13 ft (4 m)
|
| Overall Height | 13 ft (4 m)
|
| Overall Height - Body Raised | 29 ft (9 m)
|
| Overall Length | 32 ft (10 m)
|
| Overall Width | 15 ft (4 m)
|
| Wheel Base | 14 ft (4 m)
|
| Wheelbase | 14 ft (4 m)
|
Dump
| Load Capacity - heaped | 46 cu yd (35 cu m)
|
| Load Capacity - Struck | 35 cu yd (27 cu m)
|
| Lower Time | 12.5 seconds
|
| Raise Time | 9.5 seconds
|
Engine
| Bore | 5 in (14 cm)
|
| Displacement | 1,648 cu in (27,001 cu cm)
|
| Engine Model | Cat 3412E TA-HEUI
|
| Flywheel Power | 650 hp (485 kw)
|
| Gross Power | 683 hp (509 kw)
|
| Gross Power - SAE J1995 | 650 hp (485 kw)
|
| Max Torque | 1,707 lbs ft (2,314 nm)
|
| Net Power | 644 hp (480 kw)
|
| Net Power - 80/1269/EEC | 34 hp (25 kw)
|
| Net Power - Cat | 650 hp (485 kw)
|
| Net Power - ISO 9249 | 41 hp (31 kw)
|
| Net Power - SAE J1349 | 54 hp (40 kw)
|
| Number of Cylinders | 12
|
| Power Measured @ | 2000 rpm
|
| Stroke | 6 in (15 cm)
|
Final Drives
Operating Specifications
| Body Capacity - SAE 2:1 | 45 cu yd (34 cu m)
|
| Body Capacity - Struck | 34 cu yd (26 cu m)
|
| Brake/Hoist System Fluid Capacity | 35 gal (133 l)
|
| Circle Clearance Diameter | 79 ft (24 m)
|
| Cooling System Fluid Capacity | 36 gal (137 l)
|
| Diff and Final Drive Fluid Capacity | 37 gal (140 l)
|
| Engine Oil Capacity | 20 gal (76 l)
|
| Fuel Capacity | 185 gal (700 l)
|
| Lower Time | 12.5 seconds
|
| Maximum Capacity | 96,260 lbs (43,663 kg)
|
| Nominal Payload Class (100%) | 96,260 lbs (43,663 kg)
|
| Operating Voltage | 24 volts
|
| Raise Time | 9.5 seconds
|
| Steering System Fluid Capacity | 9 gal (34 l)
|
| Tire Size | 24.00R35
|
| Top Speed - Loaded | 41 mph (66 kph)
|
Service Refill Capacities
| Brake Hoist System - Includes Tank | 104 gal (393 l)
|
| Cooling System | 40 gal (151 l)
|
| Fuel Tank | 185 gal (700 l)
|
| Steering System - Including Tank | 21 gal (81 l)
|
| Steering Tank | 15 gal (55 l)
|
| Torque Converter - Brake - Hoist Hydraulic Tank | 58 gal (220 l)
|
| Torque Converter - Transmission System - Including Sump | 27 gal (100 l)
|
Tires
| Standard Tire | 24.00R35 (E-4)
|
Transmission
| Forward - 1 | 6 mph (10 kph)
|
| Forward - 2 | 9 mph (14 kph)
|
| Forward - 3 | 12 mph (19 kph)
|
| Forward - 4 | 16 mph (25 kph)
|
| Forward - 5 | 21 mph (34 kph)
|
| Forward - 6 | 29 mph (46 kph)
|
| Forward - 7 | 41 mph (66 kph)
|
| Max Speed | 39 mph (62 kph)
|
| Number of Gears - Forward | 7
|
| Number of Gears - Reverse | 1
|
| Reverse | 7 mph (12 kph)
|
Weights
| Empty Weight | 87,083 lbs (39,500 kg)
|
| Front Axle - Empty | 47.3%
|
| Front Axle - Loaded | 33.3%
|
| Loaded Weight | 219,007 lbs (99,340 kg)
|
| Operating Weight - Loaded | 204,000 lbs (92,533 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%
|
