- 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 known for serviceability, durability, and compatibility with large-scale fleet operations. The 773D remains a reference model for operators seeking a conventional mechanical haul truck in heavy-duty material handling.
Body Hoists
| 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
| 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
| 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
| 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
Operating 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 (43,662.86 kg)
|
| Nominal Payload Class (100%) | 96,260.00 lbs (43,662.86 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
| 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
| Standard Tire | 24.00R35 (E-4)
|
Transmission
| 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
| Empty Weight | 87,082.60 lbs (39,500.05 kg)
|
| Front Axle - Empty | 47.3%
|
| Front Axle - Loaded | 33.3%
|
| Loaded Weight | 219,007.20 lbs (99,340.12 kg)
|
| Operating Weight - Loaded | 204,000.00 lbs (92,532.96 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%
|
