Category : Off-Highway Trucks ➔ Manufacturer : Caterpillar ➔ Model : 785C ➔
The Caterpillar 785C is a rigid-frame off-highway haul truck designed for large-scale mining and heavy earthmoving applications. It is part of Caterpillar's 785 series and is used to transport high volumes of overburden, ore, and aggregate in demanding site conditions. The 785C features a high-capacity dump body, diesel powertrain, and heavy-duty suspension for operation on rough haul roads. Common specifications include a large payload rating, articulated service access, and operator cab designed for visibility and control. The model is widely recognized in quarry, mining, and construction fleets for material transport in continuous production environments.
Approximate Weights - Dual Slope
Caterpillar 785C Off-Highway Truck Approximate Weights - Dual Slope specifications
Chassis
164,134.00 lbs (74,437.19 kg)
Gross Weight - Empty
211,035.00 lbs (95,707.49 kg)
Approximate Weights - Flat Floor
Caterpillar 785C Off-Highway Truck Approximate Weights - Flat Floor specifications
Body
56,630.00 lbs (25,682.54 kg)
Chassis
164,134.00 lbs (74,437.19 kg)
Articulating/Rigid
Caterpillar 785C Off-Highway Truck Articulating/Rigid specifications
Articulating/Rigid
Rigid
Body Hoists
Caterpillar 785C Off-Highway Truck Body Hoists specifications
Body Lower Time - Float
16.2 seconds
Body Raise Time - High Idle
15.2 seconds
Pump Flow - High Idle
198.00 gpm (749.43 lpm)
Relief Valve Setting - Lower
74 psi
Relief Valve Setting - Raise
2500 psi
Capacity - Dual Slope - 100% Fill Factor
Caterpillar 785C Off-Highway Truck Capacity - Dual Slope - 100% Fill Factor specifications
Heaped 2:1 (SAE)
96.00 cu yd (73.39 cu m)
Struck
74.00 cu yd (56.57 cu m)
Capacity - Flat Floor - 100% Fill Factor
Caterpillar 785C Off-Highway Truck Capacity - Flat Floor - 100% Fill Factor specifications
Struck
96.00 cu yd (73.39 cu m)
Dimensions
Caterpillar 785C Off-Highway Truck Dimensions specifications
Dump Ground Clearance
4.30 ft (1.31 m)
Dump Height
36.90 ft (11.25 m)
Ground Clearance
3.30 ft (1.01 m)
Overall Height
19.00 ft (5.79 m)
Overall Length
36.30 ft (11.06 m)
Overall Width
20.60 ft (6.28 m)
Wheelbase
17.00 ft (5.18 m)
DRIVE SYSTEM
Caterpillar 785C Off-Highway Truck DRIVE SYSTEM specifications
Drive Config
4x2
Dump
Caterpillar 785C Off-Highway Truck Dump specifications
Dump Angle
49 degrees
Load Capacity - heaped
119.00 cu yd (90.98 cu m)
Load Capacity - Struck
96.00 cu yd (73.39 cu m)
Lower Time
15.9 seconds
Raise Time
15.2 seconds
Engine
Caterpillar 785C Off-Highway Truck Engine specifications
Bore
6.70 in (17.02 cm)
Displacement
3,158.00 cu in (51,750.46 cu cm)
Engine Model
Cat 3512B-EUI
Gross Power
1,451.00 hp (1,082.03 kw)
Gross Power - SAE J1995
1,450.00 hp (1,081.28 kw)
Make
Cat
Net Power
1,348.00 hp (1,005.22 kw)
Net Power - 80/1269/EEC
1,348.00 hp (1,005.22 kw)
Net Power - Cat
1,348.00 hp (1,005.22 kw)
Net Power - ISO 9249
1,348.00 hp (1,005.22 kw)
Net Power - SAE J1349
1,348.00 hp (1,005.22 kw)
Number of Cylinders
16
Power Measured @
1750 rpm
Rated Engine Speed
169.4 rpm
Stroke
7.50 in (19.05 cm)
Torque Measured @
Turbocharged rpm
Final Drives
Caterpillar 785C Off-Highway Truck Final Drives specifications
Planetary Ratio
10.83:1
Operating Specifications
Caterpillar 785C Off-Highway Truck Operating Specifications specifications
Brake/Hoist System Fluid Capacity
89.00 gal (336.87 l)
Cooling System Fluid Capacity
100.00 gal (378.50 l)
Diff and Final Drive Fluid Capacity
115.00 gal (435.28 l)
Engine Oil Capacity
24.00 gal (90.84 l)
Fuel Capacity
500.00 gal (1,892.50 l)
Hydraulic System Fluid Capacity
169.40 gal (641.18 l)
Lower Time
15.9 seconds
Operating Voltage
24 volts
Raise Time
15.2 seconds
Steering System Fluid Capacity
31.00 gal (117.34 l)
Tire Size
33.00-R51 tires
Top Speed - Loaded
34.00 mph (54.72 kph)
Turning Circle - Clearance Diameter
65.60 ft (19.99 m)
ROPS
Caterpillar 785C Off-Highway Truck ROPS specifications
ROPS/FOPS Standards
46865
Service Refill Capacities
Caterpillar 785C Off-Highway Truck Service Refill Capacities specifications
Brake / Hoist / Fan Hydraulic Tank
102.00 gal (386.07 l)
Brake Hoist System - Includes Tank
169.00 gal (639.67 l)
Cooling System
100.00 gal (378.50 l)
Fuel Tank - Standard
500.00 gal (1,892.50 l)
Steering System - Including Tank
31.00 gal (117.34 l)
Steering Tank
24.00 gal (90.84 l)
Torque Converter - Transmission Sump
164,134.00 gal (621,247.20 l)
Torque Converter/Transmission System - Including Sump
65.60 gal (248.30 l)
Sound
Caterpillar 785C Off-Highway Truck Sound specifications
Sound Standards
ANSI/SAE J1166 MAY90 SAE J88 APR95
Suspension
Caterpillar 785C Off-Highway Truck Suspension specifications
Rear axle - Oscillation
12.1 degrees
Transmission
Caterpillar 785C Off-Highway Truck Transmission specifications
Forward - 1
7.50 mph (12.07 kph)
Forward - 2
10.20 mph (16.42 kph)
Forward - 3
13.80 mph (22.21 kph)
Forward - 4
18.60 mph (29.93 kph)
Forward - 5
25.20 mph (40.56 kph)
Forward - 6
34.00 mph (54.72 kph)
Max Speed
34.00 mph (54.72 kph)
Number of Gears - Forward
6
Number of Gears - Reverse
1
Reverse
6.80 mph (10.94 kph)
Transmission Type
Six-speed planetary
Weights
Caterpillar 785C Off-Highway Truck Weights specifications
Body Weight
164,134.00 lbs (74,437.19 kg)
Empty Weight
225,200.00 lbs (102,131.52 kg)
Front Axle - Empty
47%
Front Axle - Loaded
33%
Gross Machine Operating Weight (GMW)
SAE J1040 APR88 ISO 3471:1994 lbs (0.00 kg)
Loaded Weight
550,000.00 lbs (249,433.12 kg)
Operating Weight
550,000.00 lbs (249,433.12 kg)
Operating Weight - Loaded
SAE J1511 OCT90 ISO 5010:1992 lbs (0.00 kg)
Rear Axle - Empty
53%
Rear Axle - Loaded
67%
Weight Distribution Front - empty
47%
Weight Distribution Front - loaded
33%
Weight Distribution Rear - empty
53%
Weight Distribution Rear - loaded
67%
