Trucks/Off-Highway Trucks

Off-Highway Trucks CAT® 770G 772G Introduction Off-Highway Trucks CAT® 770G 772G Introduction
Off-Highway Trucks CAT® 770G 772G Walk Around Off-Highway Trucks CAT® 770G 772G Walk Around
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Nominal Payload Class (100%)51.6 ton (US) (46.8 t)
Engine ModelCat® C18
Top Speed - Loaded49.2 mile/h (79.1 km/h)
Rated Engine Speed1700 r/min (1700 r/min)
Your long-term success is our goal here at Cat, so we’ve developed our 772 to be more productive and economical for our customers for years to come. Equipped with productive transmission controls, the 772 is built for heavy-duty, off-road applications and delivers quick haul cycles with automotive-quality shifting and comfort. The 772 is also built with a Cat C18 diesel engine and with our fuel saving strategies, you can adjust engine power to meet your specific needs. Ideal pass match options for the 772 are the Cat 986K or the 988K Wheel Loader and the 390F L Hydraulic Excavator. When you consider its fuel efficiency and performance, the 772 is the right Off-Highway Truck for all generations.


Nominal Payload Class (100%)51.6 ton (US) (46.8 t)
Engine ModelCat® C18
Top Speed - Loaded49.2 mile/h (79.1 km/h)
Rated Engine Speed1700 r/min (1700 r/min)
Gross Power - SAE J1995605 HP (451 kW)
Net Power - SAE J1349550 HP (410 kW)
Target Gross Machine Operating Weight181000 lb (82100 kg)
Net Power - ISO 9249550 HP (410 kW)
Number of Cylinders6
Bore5.7 in (145 mm)
Stroke7.2 in (183 mm)
Displacement1105 in³ (18.1 l)
Chassis Weight59223 lb (26863 kg)
Body Weight17306 lb (8258 kg)
Front Axle - Empty51.4 % (51.4 %)
Front Axle - Loaded34.2 % (34.2 %)
Rear Axle - Empty48.6 % (48.6 %)
Rear Axle - Loaded65.8 % (65.8 %)
Forward - 18 mile/h (12.8 km/h)
Forward - 210.9 mile/h (17.5 km/h)
Forward - 314.8 mile/h (23.7 km/h)
Forward - 419.8 mile/h (31.9 km/h)
Forward - 526.9 mile/h (43.3 km/h)
Forward - 636.2 mile/h (58.4 km/h)
Forward - 749.2 mile/h (79.2 km/h)
Reverse10.4 mile/h (16.8 km/h)
Differential Ratio2.74:1
Planetary Ratio4.80:1
Total Reduction Ratio13.14:1
Brake Surface - Front216 in² (1395 cm²)
Brake Surface - Rear7794 in² (50281 cm²)
Brake StandardsISO 3450:2011
Fuel Tank140 gal (US) (530 l)
Cooling System33 gal (US) (125 l)
Differential - Final Drives47 gal (US) (180 l)
Steering Tank14.5 gal (US) (55 l)
Steering System - Including Tank23 gal (US) (87 l)
Pump Flow - High Idle112 gal/min (425 l/min)
Relief Valve Setting - Raise2750 psi (18950 kPa)
Relief Valve Setting - Lower500 psi (3450 kPa)
Body Raise Time - High Idle8 s (8 s)
Body Lower Time - Float10 s (10 s)
Body Power Down - High Idle10 s (10 s)
Rear axle - Oscillation8.9 ° (8.9 °)
Sound Standards (2)Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 118 dB(A).
Sound Standards (3)Operator Equivalent Sound Pressure Level (Leq) is 78 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab.
ROPS StandardsROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS StandardsFOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
Sound Standards (1)Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment.
Turning Diameter - Front57.7 ft (17.6 m)
Crankcase17 gal (US) (64 l)
DEF Tank6 gal (US) (21 l)
Height - Top of ROPS12.8 ft (3907 mm)
Inside Body Depth - Maximum5.7 ft (1747 mm)
Brake Hoist System60 gal (US) (227 l)
Brake/Hoist Hydraulic Tank38 gal (US) (145 l)
Target Gross Machine Weight181000 lb (82100 kg)
Torque Converter - Transmission System17 gal (US) (64 l)
Target Payload Capacity51.6 ton (US) (46.8 ton (US))
Empty Loaded Cylinder Stroke Rear5.8 in (149 mm)
Empty Loaded Cylinder Stroke Front9.2 in (234 mm)
Net Torque - SAE J13492221 ft-lb (3012 N·m)
Maximum Payload Class (110%)56.7 ton (US) (51.4 ton (US))
Engine Power - ISO 14396598 HP (446 kW)
Heaped 2:1 (SAE)40.9 yd³ (31.3 m³)
Struck31.3 yd³ (23.9 m³)
Struck31.3 yd³ (23.9 m³)
Heaped 2:1 (SAE)40.8 yd³ (31.2 m³)
Not to Exceed Payload (120%)61.9 ton (US) (56.1 ton (US))
Body Capacity - SAE 2:140.8 yd³ (31.2 m³)
Overall Body Length26.8 ft (8164 mm)
Inside Body Length19 ft (5781 mm)
Overall Length28.9 ft (8808 mm)
Wheel Base13 ft (3960 mm)
Rear Axle - Tail9.5 ft (2598 mm)
Ground Clearance1.6 ft (618 mm)
Dump Clearance1.5 ft (562 mm)
Loading Height - Empty11.6 ft (3570 mm)
Overall Height - Body Raised27.1 ft (8257 mm)
Operating Width15.7 ft (4780 mm)
Centerline Front Tire Width10.4 ft (3165 mm)
Engine Guard Clearance2 ft (618 mm)
Outside Body Width12.9 ft (3931 mm)
Inside Body Width11.9 ft (3642 mm)
Front Canopy Height13.7 ft (4159 mm)
Rear Axle - Clearance1.9 ft (572 mm)
Centerline of Rear Dual Tire Width8.7 ft (2652 mm)
Overall Tire Width12.9 ft (3927 mm)
Standard Tire21.00R33 (E4)
Steering StandardsISO 5010:2007
Steer Angle40.5 ° (40.5 °)
Turning Circle - Clearance Diameter66.6 ft (20.3 m)
Body Capacity (SAE 2:1)**40.8 yd³ (31.2 m³)

Benefits and Features


  • Haul your materials faster with an accelerated travel speed.
  • Put more power to the ground with increased torque.
  • Enjoy greater productivity while using a more responsive Traction
    Control System (TCS).
  • Reduce tire wear with maximum by engaging TCS early in the slip.
  • Strong, predictable performance helps operators achieve the lowest cost per ton.


  • Up to 10% less fuel consumption.
  • Advanced Productivity Electronic Control System (APECS) allows the engine and transmission to communicate on a high level. This communication allows the machine to better utilize the power andtorque the engine is producing.
  • Automatically optimize fuel consumption with the feature—Adaptive Economy mode reduces fuel use without affecting productivity and can be engaged with a single button.
  • Gain improvements in fuel efficiency with auto neutral idle.
  • Haul your 773 truck at a more fuel-efficient engine speed and gear selection with speed limiting.
  • Conserve fuel with integrated Engine Idle Shutdown by the engine automatically initiating when the truck is in park and idle for a preset amount of time.


  • Improvements in accessibility with safe, ground-level access tofuel fill and daily maintenance points.
  • Ensure three points of contact when entering and exiting the machine with strategically placed walkways and grab rails.
  • Superior brake performance meets the latest brake standards—
        ISO 3450:2011.
  • The ground-level engine shut-off switch stops all fuel to the engine when activated and shuts down the machine safely.
  • Sturdy 4-point mounted cabin meets rollover protective structure/
        falling objects protective structure (ROPS/FOPS) standard.
  • 4-point seat belt provides enhanced safety to the operator.
  • Seat belt indicator implements both visual and audible alerts to the
        operator when seat belt is not fastened.
  • Lockout features help the service technician to perform
        maintenance work on the machine with safe mode.
  • Secondary steering activates automatically in case of primary
        system failure.
  • Overload speed limiter works with truck payload system to reduce
        machine speed automatically when the truck is overloaded. 


  • Completely redesigned cab for a whole new standard in visibility, comfort, and productivity.
  • The new operator seat placement provides easier operation and comfort to the operator.
  • Improvements in enlarged views of the work area and its surroundings.
  • Access connectivity and decrease clutter with more storage areas in the newly designed cab.
  • Automatic cab temperature controls.
  • Cat next-generation deluxe seat for better operator comfort.


  • Integrated systems give you the ability to make timely, fact-based
    decisions to maximize efficiency, improve productivity, and lower
  • Gain valuable insight into how your machine is performing by 
    continuously monitoring and collecting vital machine dta via the advisor display with the software Bital Information Management System (VIMS™).  Applicable to both U.S. EPA Tier 4 Final/EU Stage V and U.S. EPA Tier 2 equivalent.
  • Truck Production Management System (TPMS) provides accurate weighing of the materials, stores 2,400 payload cycles, and reportson, haul cycle times, and distances with date and time stamps.
  • External payload indicator lights alert the loader when to stop, reducing the risk of machine overloading.
  • Product Link™ system connects to each machine wirelessly, 
    allowing you to monitor location, hours, fuel use, productivity, idle
    time, and diagnostic codes.
  • VisionLink®
    wirelessly connects you to your equipment, giving
    you access to essential information you need to know to run your business.
  • The Cat 773 is MineStar™ ready and includes Cat Product Link
    Elite and VIMS to help optimize equipment management, remote
    monitoring capabilities, machine availability, and component life while reducing both repair costs and the risk of catastrophic 
  • Tons kilometers per hour/tons miles per hour (TKPH/TMPH) tire
        management system works with TPMS for improved tire life. 


• Grouped service points.
• Control particulate matter with two engine-mounted diesel
oxidation catalyst canisters. (Tier 4)
• NOx reduction system (NRS) technology replaces a portion of intake air with exhaust gas to control combustion temperatures and
NOx production. (Tier 4)
• Parts commonality with other Cat equipment.
• Resolve problems before failure occurs with VIMS notifications.
• Torque converter stall (autostall) enables quick operating temperatures for best performance life.
• All LED lights provide longer life, brighter light, consume less power, and are more resistant to vibration or water damage. 


  • Get the right body option—Dual Slope, Flat Floor, or Quarry—for your material and jobsite needs.
  • For haul profiles including steep slopes, an optional Dual Slope body is available—offering excellent material retention.
  • The flat floor body is perfect for metering material, especially when
        feeding the crusher. 
  • Optimize your body life by selecting a liner package best suited
        for your application. We offer steel liners that work for most applications as well as rubber liners for extreme applications. 

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Alarm, backup
  • Alternator, 115 ampere
  • Auxiliary jump start receptacle
  • Batteries, maintenance-free, 12V (2), 190 amp-hour
  • Electrical system, 24V
  • Lighting system: - Backup light (halogen) - Directional signals/hazard warning (front and rear LED) - Headlights, (halogen) with dimmer - Operator access courtesy lights (Developing Market Only)
  • Driveline
  • Engine crankcase
  • Air conditioning
  • Ashtray and cigarette lighter
  • Coat hook
  • Cup holders (4)
  • Diagnostic connection port, 24V
  • Entertainment Radio Ready: - 5 amp converter - Speakers - Antenna - Wiring harness
  • Gauges/indicators: - Air cleaner service indicator - electronic - Brake oil temperature gauge - Coolant temperature gauge - Hour meter - Tachometer - Engine overspeed indicator - Fuel level - Speedometer with odometer - Transmission gear indicator
  • Heater/defroster (11 070 kCal/43,930 BTU)
  • Hoist lever
  • Horn, electric
  • Light - dome
  • Light - courtesy
  • Messenger, display unit
  • Mirrors
  • Power port, 12V
  • ROPS cab, insulated/sound suppressed
  • Seat, Cat Comfort Series III: - full air suspension - four point harness
  • Steering wheel, padded, tilt and telescopic
  • Storage compartment
  • Sun visor, tinted glass
  • Throttle lock
  • Windshield wiper (intermittent) and washer
  • Air-To-Air Aftercooler (ATAAC)
  • Air cleaner with precleaner (1)
  • Automatic cold mode idle control
  • Electric start
  • Turbocharger
  • Braking system, hydraulic actuated: - Automatic Retarder Control (ARC) (utilizes rear oil-cooled, multiple disc brakes) - Brake release motor (towing) - Caliper-disc (front) - Oil-cooled, multiple disc (rear) - Parking - Secondary - Service
  • Transmission: - 7 speed automatic powershift - Body up shift inhibitor - Controlled throttle shifting - Directional shift management - Downshift inhibitor - Neutral start switch - Neutral coast inhibitor - Reverse shift inhibitor - Reverse neutralizer during dumping - Programmable top gear selection
  • Suspension, front and rear
  • Body safety pin (secures body in up position)
  • Body down indicator
  • CD ROM parts book
  • Fan, hydraulic demand
  • Fuel tank (530 L/140 gal)
  • Guard, engine compartment
  • Guard, mud
  • Ground level battery disconnect
  • Ground level engine shutdown
  • Ground level grease fittings
  • Reservoirs (separate): - Brake/converter/hoist - Steering - Transmission/torque converter
  • Rims 15 × 33
  • Rock ejectors
  • Service platform, left and right side
  • Supplemental steering (automatic)
  • Tie down eyes
  • Tow hooks (front)/Tow pin (rear)
  • Vandalism protection locks
  • Extended Life Coolant to -35° C (-30° F)