773 (05)
773 (05) Off-Highway Truck
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.
ACHIEVE GREATER PRODUCTIVITY
BOOST FUEL EFFICIENCY
DESIGNED FOR SAFETY
EASY TO OPERATE
INTEGRATED CAT TECHNOLOGIES
INCREASED PERFORMANCE AND RELIABILITY
LOWER MAINTENANCE COSTS
Documents & Brochures
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
Additional information
| Offering Type | |
|---|---|
| Engine Model | Cat® 3412E |
| Rated Engine Speed | 2000 r/min ( 2000 r/min ) |
| Engine - Gross Power - SAE J1995 | 567 kW ( 760 HP ) |
| Engine - Net Power - SAE J1349 | 537 kW ( 720 HP ) |
| Engine - Number of Cylinders | 12 |
| Engine - Torque Rise | 33 % ( 33 % ) |
| Engine - Bore | 137 mm ( 5.4 in ) |
| Engine - Stroke | 152 mm ( 6 in ) |
| Engine - Displacement | 27 l ( 1649 in³ ) |
| Engine - Note (1) | These engine ratings apply at 2,000 rpm when tested under the specified |
| Engine - 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)]. |
| Engine - Note (3) | Net power advertised is the power available at the flywheel when the |
| Engine - Note (4) | No engine derating required up to 3048 m (10,000 ft). |
| Engine - Note (5) | Meets China Nonroad Stage III emission standards equivalent to Tier 2. |
| Weights - Approximate - Target Gross Machine Operating Weight | 99300 kg ( 218920 lb ) |
| Weights - Approximate - Operating Weight - Empty | 40192 kg ( 88608 lb ) |
| Weights - Approximate - Operating Weight - Loaded | 59108 kg ( 130311 lb ) |
| Weights - Approximate - Note (1) | Does not include Liner. |
| Weights - Approximate - Note (2) | Empty operating weight may vary based on the machine configuration. |
| Operating Specifications - Nominal Payload Class (100%) | 59.1 t ( 65.2 ton (US) ) |
| Operating Specifications - Top Speed - Loaded | 67.8 km/h ( 42.1 mile/h ) |
| Transmission - Forward - 1 | 10.8 km/h ( 6.7 mile/h ) |
| Transmission - Forward - 2 | 15.1 km/h ( 9.3 mile/h ) |
| Transmission - Forward - 3 | 20.4 km/h ( 12.7 mile/h ) |
| Transmission - Forward - 4 | 27.4 km/h ( 17 mile/h ) |
| Transmission - Forward - 5 | 37 km/h ( 23 mile/h ) |
| Transmission - Forward - 6 | 50 km/h ( 31 mile/h ) |
| Transmission - Forward - 7 | 67.8 km/h ( 42.1 mile/h ) |
| Transmission - Reverse | 13.1 km/h ( 8.1 mile/h ) |
| Transmission - Note | Maximum travel speeds with standard 24.00R35 (E4) tires. |
| Final Drives - Differential Ratio | 3.64:1 |
| Final Drives - Planetary Ratio | 4.8:1 |
| Final Drives - Total Reduction Ratio | 17.48:1 |
| Brakes - Brake Surface - Front | 1395 cm² ( 216 in² ) |
| Brakes - Brake Surface - Rear | 61269 cm² ( 9496 in² ) |
| Brakes - Brake Standards | ISO 3450: 2011 |
| Body Hoists - Pump Flow - High Idle | 562 l/min ( 148 gal/min ) |
| Body Hoists - Relief Valve Setting - Raise | 17225 kPa ( 2500 psi ) |
| Body Hoists - Relief Valve Setting - Lower | 3445 kPa ( 500 psi ) |
| Body Hoists - Body Raise Time - High Idle | 9.5 s ( 9.5 s ) |
| Body Hoists - Body Lower Time - Float | 12.5 s ( 12.5 s ) |
| Body Hoists - Note (1) | Twin, two-stage hydraulic cylinders mounted outside the main frame; double acting cylinders in second stage. |
| Body Hoists - Note (2) | Power raise in both stages and power down in second stage. |
| Capacity - Dual Slope - 100% Fill Factor - Struck | 26.6 m³ ( 34.8 yd³ ) |
| Capacity - Dual Slope - 100% Fill Factor - Heaped 2:1 (SAE) | 35.2 m³ ( 46 yd³ ) |
| Capacity - Dual Slope - 100% Fill Factor - Note (1) | ISO 6483:1980 |
| Capacity - Dual Slope - 100% Fill Factor - Note (2) | Contact your local Cat dealer for body recommendation. |
| 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. |
| Cab - FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II |
| Cab - Note (1) | The air conditioning system on this machine contains the fluorinated |
| Weight Distributions - Approximate - Front Axle - Empty | 46.6 % ( 46.6 % ) |
| Weight Distributions - Approximate - Front Axle - Loaded | 33.8 % ( 33.8 % ) |
| Weight Distributions - Approximate - Rear Axle - Empty | 53.4 % ( 53.4 % ) |
| Weight Distributions - Approximate - Rear Axle - Loaded | 66.2 % ( 66.2 % ) |
| Suspension - Effective Cylinder Stroke - Front | 234 mm ( 5.2 in ) |
| Suspension - Effective Cylinder Stroke - Rear | 149 mm ( 5.9 in ) |
| Suspension - Rear axle - Oscillation | 8.1 ° ( 8.1 ° ) |
| Approximate Weights - Dual Slope - Chassis | 30219 kg ( 66622 lb ) |
| Approximate Weights - Dual Slope - Gross Vehicle | 99300 kg ( 218920 lb ) |
| Service Refill Capacities - Fuel Tank | 700 l ( 185 gal (US) ) |
| Service Refill Capacities - Cooling System | 122 l ( 32 gal (US) ) |
| Service Refill Capacities - Differential - Final Drives | 155 l ( 41 gal (US) ) |
| Service Refill Capacities - Steering Tank | 34 l ( 9 gal (US) ) |
| Service Refill Capacities - Steering System - Including Tank | 60 l ( 16 gal (US) ) |
| Service Refill Capacities - Torque Converter - Brake - Hoist Hydraulic Tank | 133 l ( 35 gal (US) ) |
| Service Refill Capacities - Brake Hoist System - Includes Tank | 307 l ( 81 gal (US) ) |
| Service Refill Capacities - Torque Converter - Transmission System - Including Sump | 72 l ( 19 gal (US) ) |
| Service Refill Capacities - Torque Converter - Transmission System | 53 l ( 14 gal (US) ) |
| Service Refill Capacities - Crankcase | 68 l ( 18 gal (US) ) |
| Tires - Standard Tire | 24.00-R35 (E4) |
| Tires - 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. |
| Tires - Note (2) | Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. |
| Sound Standards | ISO 6393:2008, SAE J1166:2008 |
| Sound - 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. |
| Sound - 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. |
| Steering - Turning Diameter - Front | 22 m ( 72.18 ft ) |
| Steering Standards | Steering Standards Meets ISO 5010:2007 |
| Steering - Steer Angle | 31 ° ( 31 ° ) |
| Steering - Turning Circle - Clearance Diameter | 25 m ( 82 ft ) |
| Dimensions - Height - Top of ROPS | 4000 mm ( 13.12 ft ) |
| Dimensions - Overall Body Length | 8535 mm ( 28 ft ) |
| Dimensions - Inside Body Length | 6400 mm ( 21 ft ) |
| Dimensions - Overall Length | 9120 mm ( 31.5 ft ) |
| Dimensions - Wheel Base | 4191 mm ( 13.75 ft ) |
| Dimensions - Rear Axle - Tail | 2782 mm ( 9.13 ft ) |
| Dimensions - Ground Clearance | 566 mm ( 1.86 ft ) |
| Dimensions - Dump Clearance | 676 mm ( 2.22 ft ) |
| Dimensions - Loading Height - Empty | 3773 mm ( 12.38 ft ) |
| Dimensions - Inside Body Depth - Maximum | 1805 mm ( 5.92 ft ) |
| Dimensions - Overall Height - Body Raised | 8787 mm ( 28.83 ft ) |
| Dimensions - Operating Width | 5076 mm ( 16.8 ft ) |
| Dimensions - Centerline Front Tire Width | 3275 mm ( 10.74 ft ) |
| Dimensions - Engine Guard Clearance | 667 mm ( 2.2 ft ) |
| Dimensions - Overall Canopy Width | 4393 mm ( 14.41 ft ) |
| Dimensions - Outside Body Width | 3910 mm ( 12.8 ft ) |
| Dimensions - Inside Body Width | 3658 mm ( 12 ft ) |
| Dimensions - Front Canopy Height | 4393 mm ( 14.41 ft ) |
| Dimensions - Rear Axle - Clearance | 591 mm ( 1.94 ft ) |
| Dimensions - Centerline of Rear Dual Tire Width | 2927 mm ( 9.6 ft ) |
| Dimensions - Overall Tire Width | 4457 mm ( 14.62 ft ) |
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