Big EOFY Savings on Cat Compact machines until 30 June 2026. T&Cs apply. View Promotion

Big EOFY Savings on Cat Compact machines until 30 June 2026. T&Cs apply. View Promotion

785 (04) Water Truck

Water Trucks
Longer description goes here
Engine Model
Cat® 3512C HD
Gross Power - SAE J1995:2014
1450 hp/1082 kW
Net Power - SAE J1349:2011
1348 hp/1005 kW
Emissions
Fuel Optimized

Key Features

Specifications

Metric | Imperial
Engine Expand Collapse
Engine Model
Cat® 3512C HD
Gross Power - SAE J1995:2014
1450 hp 1082 kW
Net Power - SAE J1349:2011
1348 hp 1005 kW
Emissions
Fuel Optimized
Bore
6.7 in 170 mm
Stroke
8.4 in 215 mm
Displacement
3573.6 in³ 58.56 l
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
Maximum water flow
1800 gal(US)/min 6814 L/min
Water per spray head (minimum)
35 gal(US)/min 132.5 L/min
Water per spray head (maximum)
600 gal(US)/min 2270 L/min
Spray head opening range (minimum)
0.04 in 1 mm
Spray head opening range (maximum)
0.75 in 19 mm
Maximum size debris flushed through spray head
0.75 in 19 mm
Spray system hydraulic tank capacity
7.25 gal (US) 27.5 l
Maximum number of rear spray heads
5
Minimum number of rear spray heads (recommended 3)
2
Minimum number of front/side spray heads
2
Maximum number of front/side spray heads
Maximum water from cannon (idle)
600 gal(US)/min 2271 L/min
Maximum water from cannon (high idle)
1650 gal(US)/min 6246 L/min
Maximum cannon spray distance
200 ft 61 m
Type
Wet water pump/hydraulic motor coupling
Note
Operator selectable coverage: 0.2 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Note (3)
Alternatively, manual mode allows the operator to set a water flow rate that is constant regardless of ground speed. This mode is not recommended for daily operation and will reduce watering efficiency and may increase fuel usage.
Note (4)
Spray heads on competitive water distribution systems require tools and maintenance to change flow and spray pattern. Caterpillar is the only company to have variable active spray heads to regulate water spray.
Note (5)
Cannon performance depends on nozzle orifice and pipe size.
Water Tank Capacity
up to 121 133 L (32,000 gal)
Note
Operator selectable coverage: 0.2 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
Machine Weight (with water tank full)
480,655 lb - 520,237 lb / 218 022 kg - 235 976 kg
Empty Machine Operating Weight (without water / with fuel)
241,647 lb - 251,098 lb / 109 610 kg - 113 896 kg
Water Tank - Max Empty Weight (no WDS)
57,320 lb - 66,769 lb / 26 000 kg - 30 286 kg
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Note (3)
Alternatively, manual mode allows the operator to set a water flow rate that is constant regardless of ground speed. This mode is not recommended for daily operation and will reduce watering efficiency and may increase fuel usage.
Note
Operator selectable coverage: 0.2 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Target Gross Machine Weight
550000 lb 249476 kg
Chassis Weight
180827 lb 82022 kg
Forward - 1
7.5 mile/h 12.1 km/h
Forward - 2
10.2 mile/h 16.3 km/h
Forward - 3
13.8 mile/h 22.2 km/h
Forward - 4
18.6 mile/h 29.9 km/h
Forward - 5
25.2 mile/h 40.6 km/h
Forward - 6
34 mile/h 54.8 km/h
Reverse
6.8 mile/h 11 km/h
Note
Operator selectable coverage: 0.2 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
Differential Ratio
2.10:1
Planetary Ratio
10.83:1
Total Reduction Ratio
22.75:1
Brake Surface - Front
9497 in² 61270 cm²
Brake Surface - Rear
13908 in² 89729 cm²
Brake Standards
ISO 3450:2011
Pump Flow - High Idle
198 gpm 750 L/min
Relief Valve Setting - Raise
2500 psi 17238 kPa
Relief Valve Setting - Lower
500 psi 3450 kPa
Body Raise Time - High Idle
15.2 s 15.2 s
Body Lower Time - Float
16.2 s 16.2 s
Body Lower Time - High Idle
15.9 s 15.9 s
Front Axle - Empty
46 % 46 %
Front Axle - Loaded
33 % 33 %
Rear Axle - Empty
54 % 54 %
Rear Axle - Loaded
67 % 67 %
Rear axle - Oscillation
5 ° 5 °
Steering Standards
ISO 5010:2007
Steer Angle
36 ° 36 °
Turning Diameter - Front
97.7 ft 29.8 m
Standard Tire
33.00-R51 (E3 & E4)
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Fuel Tank
500 gal (US) 1893 l
Cooling System
100 gal (US) 379 l
Crankcase
54 gal (US) 204 l
Differential - Final Drives
115 gal (US) 436 l
Steering Tank
24 gal (US) 90 l
Steering System - Including Tank
31 gal (US) 117 l
Brake Hoist System
89 gal (US) 337 l
Brake Hoist System - Includes Tank
169 gal (US) 641 l
Torque Converter - Transmission System - Including Sump
65.5 gal (US) 248 l
Air Conditioning
18390 Btu/lb 42780 Btu/kWh
Heater / Defroster
43930 Btu 11070 kJ/kg
ROPS Standards (1)
The ROPS (Rollover Protective Structure) for the cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards
The FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 1,800 rpm.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Note (3)
Alternatively, manual mode allows the operator to set a water flow rate that is constant regardless of ground speed. This mode is not recommended for daily operation and will reduce watering efficiency and may increase fuel usage.

Equipment

Similar Products

Engine Model
Cat® C32B
Gross Power - SAE J1995:2014
1025 hp/765 kW
Engine Model
Cat® C32B
Gross Power - SAE J1995:2014
1026 hp/765 kW
Engine Model
Cat® 3512C HD
Gross Power - SAE J1995:2014
1450 hp/1082 kW
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp/1566 kW
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp/1566 kW
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp/1566 kW
COOKIES
This site uses and sets "cookies" on your computer to help make this website better. By continuing to use this site without changing your settings, you are agreeing to our use of cookies.