Operating Specifications
| Nominal Payload Class (100%) | 65.2 ton (US) 59.1 t |
| Top Speed - Loaded | 42.1 mile/h 67.8 km/h |
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Off-Highway Trucks 773 (05)
Request A Price Find DealerKey Specs
- Nominal Payload Class (100%)
- 65.2 ton (US)
- 59.1 t
- Engine Model
- Cat® 3412E
- Cat® 3412E
- Top Speed - Loaded
- 42.1 mile/h
- 67.8 km/h
Overview
Redefining Performance
Increase uptime, efficiency, and safety on the jobsite with the productive and reliable Cat® 773 Off-Highway Truck. Built with the powerful Cat 3412E air-to-air aftercooled engine, featuring Hydraulic Electronic Unit Injector (HEUI™) for fuel efficient operation. Delivering unmatched reliability and durability along with high uptime, the 773 is the right choice for your operation.
Benefits
Up To 7% Improved Performance
Maximize power to the ground with an increase in torque and a higher speed on grade
Maximizing Efficiency
Experience higher levels of efficiency using advanced engineering and software
Enhanced Safety and Comfort
Grouped, ground level engine and machine controls allow for safe and easy daily maintenance
Features At A Glance
ACHIEVE GREATER PRODUCTIVITY
- Productivity improvement up to 7%.
- Up to 3% increase in torque puts more power to the ground.
- Various body options, along with liners and sideboard combinations, offer flexibility to move a wide density of material without compromising on payload.
- Machine speed limit feature allows the machine to run at an optimal gear for the selected speed.
BOOST FUEL EFFICIENCY
- Standard economy mode provides maximum fuel savings with minimal productivity impact.
- Haul your truck at a more fuel-efficient engine speed and gear selection with speed limiting.
- Engine Idle Shutdown automatically initiates when the truck is in park and idles for a preset amount of time—conserving fuel.
- Built with the same reliable Cat® 3412E air-to-air aftercooled engine, featuring Hydraulic Electronic Unit Injector (HEUI™) forcefficient operation.
- Deliver reliable performance in the most extreme haul-road conditions with the Cat front dry caliper and rear oil-cooled multiple disc brakes.
DESIGNED FOR SAFETY
- Ground level access to the machine shutoff switch stops all fuel to the engine when activated, shutting down the machine.
- Safe ground level access to daily maintenance points means less servicing time is required.
- Overload speed limiter works with truck payload system to reduce machine speed automatically when the truck is overloaded.
- Equipped with a retractable four-point seat belt and a shoulder harness to improve operator safety.
- Seat belt indicator implements both visual and audible alerts to the operator when seat belt is not fastened.
- Secondary steering automatically engages if the power source for the normal steering fails.
- Save on fuel costs with Engine Overspeed Protection— electronically senses the engine condition and automatically upshifts one gear to prevent engine overspeed.
EASY TO OPERATE
- Completely redesigned cab interior for a whole new standard in visibility, comfort, and productivity.
- Enjoy a more automotive-like, all-in-one integrated parking brake.
- Intuitive, ergonomic controls and multifunction display keep operators focused on their work.
- Designed for precise steering, Cat integrated steering and suspension system provides excellent maneuverability, minimal tire wear, and superior ride control.
INTEGRATED CAT TECHNOLOGIES
- Second gear reweigh improves accuracy of the haul as it recalculates the payload.
- Instrumentation and Advisor system provide a three-category warning system and quick access to stored diagnostic data.
- Product Link™ system connects to each machine wirelessly, allowing you to monitor location, hours, fuel use, productivity, idle time, and diagnostic codes.
- Vital Information Management System (VIMS™ ) – User-friendly interface monitor is available in the cabin to monitor key parameters of the machine.
- Truck Production Management System (TPMS) provides accurate weighing of the materials, stores 2,400 payload cycles, and reports on weights, haul cycle times, and distances with date and time stamps (optional attachment).
INCREASED PERFORMANCE AND RELIABILITY
- Build operator confidence with Automatic Retarder Control (ARC), providing excellent control while reducing operator effort for a smoother ride.
- Enjoy better productivity with a more responsive Traction Control System, improves control in poor underfoot conditions.
- Standard wet disc braking on rear wheels offers extra protection and enhanced safety.
- Prevent any slippage with an integrated park brake for slope holding capability.
LOWER MAINTENANCE COSTS
- Safe, convenient maintenance with a machine platform and groundlevel battery disconnect.
- The Advisor system provides quick, onboard diagnostic data and lowers operating costs.
- Rugged cylinders use a large diameter bore and a low-pressure nitrogen/oil design for long life with minimal maintenance.
- Traction Control System (TCS) engages sooner in the slip, extending tire life and cycle times.
Product Specifications for 773 (05)
Engine
| Engine Model | Cat® 3412E Cat® 3412E |
| Rated Engine Speed | 2000 r/min 2000 r/min |
| Gross Power - SAE J1995:2014 | 760 hp 567 kW |
| Net Power - SAE J1349:2011 | 720 hp 537 kW |
| Number of Cylinders | 12 12 |
| Torque Rise | 33 % 33 % |
| Bore | 5.4 in 137 mm |
| Stroke | 6 in 152 mm |
| Displacement | 1649 in³ 27 l |
| Note (1) | These engine ratings apply at 2,000 rpm when tested under the specified condition for the specified standard in effect at the time of manufacture. These engine ratings apply at 2,000 rpm when tested under the specified condition for the specified standard in effect at the time of manufacture. |
| Note (2) | Power rating conditions based on standard conditions of 25° C (77° F) and99 kPa (29.32 in Hg) dry barometer, using 35° C (95° F) API gravity fuel havingan LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 30° C (86° F) [referencea fuel density of 838.9 g/L (7.001 lb/gal)]. Power rating conditions based on standard conditions of 25° C (77° F) and99 kPa (29.32 in Hg) dry barometer, using 35° C (95° F) API gravity fuel havingan LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 30° C (86° F) [referencea fuel density of 838.9 g/L (7.001 lb/gal)]. |
| Note (3) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator. |
| Note (4) | No engine derating required up to 3048 m (10,000 ft). No engine derating required up to 3048 m (10,000 ft). |
| Note (5) | Meets China Nonroad Stage III emission standards equivalent to Tier 2. Meets China Nonroad Stage III emission standards equivalent to Tier 2. |
Weights - Approximate
| Target Gross Machine Operating Weight | 218920 lb 99300 kg |
| Operating Weight - Empty | 88608 lb 40192 kg |
| Operating Weight - Loaded | 130311 lb 59108 kg |
| Note (1) | Does not include Liner. Does not include Liner. |
| Note (2) | Empty operating weight may vary based on the machine configuration. Refer to Off-Highway Truck Payload Policy. Empty operating weight may vary based on the machine configuration. Refer to Off-Highway Truck Payload Policy. |
Cab
| ROPS Standards (1) | Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer. Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer. |
| FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria for operator and ISO 13459:2012 Level II criteria for trainer. Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria for operator and ISO 13459:2012 Level II criteria for trainer. |
| Note (1) | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.4 kg (5.29 Ibs) of refrigerant, which has a CO2 equivalent of 3.43 metric tonnes (3.78 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.4 kg (5.29 Ibs) of refrigerant, which has a CO2 equivalent of 3.43 metric tonnes (3.78 tons). |
Tires
| Standard Tire | 24.00-R35 (E4) 24.00-R35 (E4) |
| Note (1) | Productive capabilities of the 773 truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. Productive capabilities of the 773 truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. |
| Note (2) | Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. |
Sound
| Sound Standards | ISO 6393:2008, SAE J1166:2008 ISO 6393:2008, SAE J1166:2008 |
| Note (1) | For cab offered by Caterpillar, the operator sound exposure Leq (Equivalent Sound Pressure Level) is 80 dB(A) when measured according to work cycle procedures specified in SAE J1166:2008. This occurs when the cab is properly installed and maintained. The test was conducted with doors and windows closed. For cab offered by Caterpillar, the operator sound exposure Leq (Equivalent Sound Pressure Level) is 80 dB(A) when measured according to work cycle procedures specified in SAE J1166:2008. This occurs when the cab is properly installed and maintained. The test was conducted with doors and windows closed. |
| Note (2) | Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. |
Capacity - Dual Slope - 100% Fill Factor
| Struck | 34.8 yd³ 26.6 m³ |
| Heaped 2:1 (SAE) | 46 yd³ 35.2 m³ |
| Note (1) | ISO 6483:1980 ISO 6483:1980 |
| Note (2) | Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation. |
Weight Distributions - Approximate
| Front Axle - Empty | 46.6 % 46.6 % |
| Front Axle - Loaded | 33.8 % 33.8 % |
| Rear Axle - Empty | 53.4 % 53.4 % |
| Rear Axle - Loaded | 66.2 % 66.2 % |
Transmission
| Forward - 1 | 6.7 mile/h 10.8 km/h |
| Forward - 2 | 9.3 mile/h 15.1 km/h |
| Forward - 3 | 12.7 mile/h 20.4 km/h |
| Forward - 4 | 17 mile/h 27.4 km/h |
| Forward - 5 | 23 mile/h 37 km/h |
| Forward - 6 | 31 mile/h 50 km/h |
| Forward - 7 | 42.1 mile/h 67.8 km/h |
| Reverse | 8.1 mile/h 13.1 km/h |
| Note | Maximum travel speeds with standard 24.00R35 (E4) tires. Maximum travel speeds with standard 24.00R35 (E4) tires. |
Final Drives
| Differential Ratio | 3.64:1 3.64:1 |
| Planetary Ratio | 4.8:1 4.8:1 |
| Total Reduction Ratio | 17.48:1 17.48:1 |
Brakes
| Brake Surface - Front | 216 in² 1395 cm² |
| Brake Surface - Rear | 9496 in² 61269 cm² |
| Brake Standards | ISO 3450: 2011 ISO 3450: 2011 |
Service Refill Capacities
| Fuel Tank | 185 gal (US) 700 l |
| Cooling System | 32 gal (US) 122 l |
| Differential - Final Drives | 41 gal (US) 155 l |
| Steering Tank | 9 gal (US) 34 l |
| Steering System - Including Tank | 16 gal (US) 60 l |
| Torque Converter - Brake - Hoist Hydraulic Tank | 35 gal (US) 133 l |
| Brake Hoist System - Includes Tank | 81 gal (US) 307 l |
| Torque Converter - Transmission System - Including Sump | 19 gal (US) 72 l |
| Torque Converter - Transmission System | 14 gal (US) 53 l |
| Crankcase | 18 gal (US) 68 l |
Body Hoists
| Pump Flow - High Idle | 148 gal/min 562 l/min |
| Relief Valve Setting - Raise | 2500 psi 17225 kPa |
| Relief Valve Setting - Lower | 500 psi 3445 kPa |
| Body Raise Time - High Idle | 9.5 s 9.5 s |
| Body Lower Time - Float | 12.5 s 12.5 s |
| Note (1) | Twin, two-stage hydraulic cylinders mounted outside the main frame; double acting cylinders in second stage. Twin, two-stage hydraulic cylinders mounted outside the main frame; double acting cylinders in second stage. |
| Note (2) | Power raise in both stages and power down in second stage. Power raise in both stages and power down in second stage. |
Suspension
| Effective Cylinder Stroke - Front | 5.2 in 234 mm |
| Effective Cylinder Stroke - Rear | 5.9 in 149 mm |
| Rear axle - Oscillation | 8.1 ° 8.1 ° |
Approximate Weights - Dual Slope
| Chassis | 66622 lb 30219 kg |
| Gross Vehicle | 218920 lb 99300 kg |
Steering
| Turning Diameter - Front | 72.18 ft 22 m |
| Steering Standards | Steering Standards Meets ISO 5010:2007 Steering Standards Meets ISO 5010:2007 |
| Steer Angle | 31 ° 31 ° |
| Turning Circle - Clearance Diameter | 82 ft 25 m |
Dimensions
| Height - Top of ROPS | 13.12 ft 4000 mm |
| Overall Body Length | 28 ft 8535 mm |
| Inside Body Length | 21 ft 6400 mm |
| Overall Length | 31.5 ft 9120 mm |
| Wheel Base | 13.75 ft 4191 mm |
| Rear Axle - Tail | 9.13 ft 2782 mm |
| Ground Clearance | 1.86 ft 566 mm |
| Dump Clearance | 2.22 ft 676 mm |
| Loading Height - Empty | 12.38 ft 3773 mm |
| Inside Body Depth - Maximum | 5.92 ft 1805 mm |
| Overall Height - Body Raised | 28.83 ft 8787 mm |
| Operating Width | 16.8 ft 5076 mm |
| Centerline Front Tire Width | 10.74 ft 3275 mm |
| Engine Guard Clearance | 2.2 ft 667 mm |
| Overall Canopy Width | 14.41 ft 4393 mm |
| Outside Body Width | 12.8 ft 3910 mm |
| Inside Body Width | 12 ft 3658 mm |
| Front Canopy Height | 14.41 ft 4393 mm |
| Rear Axle - Clearance | 1.94 ft 591 mm |
| Centerline of Rear Dual Tire Width | 9.6 ft 2927 mm |
| Overall Tire Width | 14.62 ft 4457 mm |
773 (05) Standard Equipment
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Powertrain
- Cat® 3412E HEUI™ engine: 12-cylinder diesel,air-to-air aftercooler (ATAAC), hydraulic electronic unit injection, air filter with precleaner (2), automatic cold mode idle control, turbocharger (2)
- Extended life coolant to -35° C (-30° F)
- Transmission: 7-speed automatic power shift with ICM control, body upshift inhibitor, controlled throttle shifting, directional shift management, downshift inhibitor, neutral coast inhibitor, neutral start switch, programmable top gear/speed selection, reverse neutralizer during dumping, reverse shift inhibitor
Electrical
- Alarm, backup
- Alternator, 115 ampere
- Batteries, maintenance-free, 12V (2), 190 amp-hour
- Electrical system, 24V
Brakes
- Caliper disc (front)
- Oil disc (rear)
- Parking
- Secondary
Cab, ROPS
- Air filter service indicator
- Air system pressure gauge
- Insulated and sound-suppressed
- Ashtray and cigarette lighter
- Audiovisual seat belt reminder
- Camera System
- Sun visor
- Coat hook, cup holder
- Coolant temperature gauge
- Diagnostic connection port
- Engine overspeed indicator
- Entertainment radio ready: speakers, antenna, wiring harness
- Hoist lever
- HVAC
- Left side power window
- Load counter, automatic: Advisor display
- Mirrors, left and right
- Right side access door
- ROPS cab, insulated/sound suppressed
- Seat, Cat Comfort, full air suspension and retractable four-point seat belt with shoulder harness
- Seat, trainer with lap belt
- Throttle lock
- Tinted, laminated glass
- Transmission oil temperature gauge
Gauges
- Transmission gear indicator
- Air pressure
- Brake oil temperature
- Coolant temperature
- Fuel
- Hour meter, electric
- Odometer
- Speedometer
- Tachometer
Lighting system
- Backup light (halogen)
- Dome/courtesy light
- Directional signals/hazard warning (front and rear LED)
- Headlights (LED) with dimmer
- Hazard lights (LED)
- Stop/tail lights, LED
Reservoirs (separate)
- Brake/hoist
- Steering
- Transmission/torque converter
Technology Products
- Product Link™
Other
- Airline dryer
- Body down indicator
- Body mounting group
- Body safety pin (secures body in up position)
- Center-mounted rims
- Driveline guards, operator safety vandalism protection lock
- Engine crankcase guards
- Ground level battery disconnect
- Ground level grease fittings
- Hydro pneumatic suspension at front and rear
- Parts manual — digital (QR)
- Rock ejectors
- Supplemental steering, automatic
773 (05) Optional Equipment
Powertrain
- Auto retarder control (ARC)
- Traction Control System (TCS)
- IBC (ARC &TCS)
Cab, ROPS
- Fog lamp
- Heated mirrors
Technology Products
- Vital Information Management System (VIMS™)
- Truck Payload Management System (TPMS)
Other
- Automatic lubrication system
- Body liner
- Body sideboards
- Cluster/grouped lubrication system
- Cold weather package
- Exhaust Muffler
- Fast fluid fill system
- Fire extinguisher
- Fuel system, Fast fill
- Guard, Turbocharger
- Oil change system — high speed
- Spare rim
- Wheel Chocks
See how 773 (05) compares against frequently compared products.
Off-Highway Trucks
773 (05)
Selected
- Nominal Payload Class (100%)
- 65.2 ton (US)
- 59.1 t
- Engine Model
- Cat® 3412E
- Cat® 3412E
- Top Speed - Loaded
- 42.1 mile/h
- 67.8 km/h
Off-Highway Trucks
777 (05)
- Target Payload (100%)
- 108.3 ton (US)
- 98.2 t
- Engine Model
- Cat® C32B
- Cat® C32B
- Top Speed - Loaded
- 41.7 mile/h
- 67.1 km/h
Off-Highway Trucks
777 (07)
- Target Payload (100%)
- 101.1 ton (US)
- 91.7 t
- Engine Model
- Cat® C32B
- Cat® C32B
- Top Speed - Loaded
- 40.9 mile/h
- 65.9 km/h
Use the comparison tool to compare detailed specs of Cat and competitor models.
Compare All Modelsassignment Product Brochures and More Are Ready to Download!
Caterpillar product brochures and other informational documents are available for your growing business.
- 773 (05) Brochure Downloadable PDF Opens in a New Tab file_download
- 773 (05) Key Features (Afr-ME, CIS, Asia Pacific, SE Asia) Downloadable PDF Opens in a New Tab file_download
- 773 (05) Technical Specifications (Afr-ME, Eurasia, Asia Pacific, SE Asia) Downloadable PDF Opens in a New Tab file_download
