Engine Model Cat® C18 ACERT™
Rated Engine Speed 1700 r/min (1700 r/min)
Gross Power - SAE J1995 605 HP (451 kW)
Net Power - SAE J1349 550 HP (410 kW)
In 1963, Caterpillar introduced the 769, a revolutionary off-road truck that was purpose built for the rigors of mining and heavy construction. Fifty years later, our trucks have never been better. We've taken the best of our rugged, dependable heritage and combined it with technologies that help our environment, make your operators more productive and dramatically improve the economics of your haul fleet. This 772G has an updated traction control system to keep you moving when the ground conditions aren't perfect, you'll see improvements in fuel use through new and flexible fuel saving strategies, and we're making the operating experience best in class with automotive quality shifting, noise reduction and cab updates. Our heritage and new use of technology are combined in this truck for one purpose - the continued success of your business.


Engine Model Cat® C18 ACERT™
Rated Engine Speed 1700 r/min (1700 r/min)
Gross Power - SAE J1995 605 HP (451 kW)
Net Power - SAE J1349 550 HP (410 kW)
Net Power - ISO 9249 550 HP (410 kW)
Number of Cylinders 6
Bore 5.7 in (145 mm)
Stroke 7.2 in (183 mm)
Displacement 1105 in³ (18.1 l)
Engine Power - ISO 14396 598 HP (446 kW)
Net Torque - SAE J1349 2221 ft-lb (3012 N·m)
Target Gross Machine Operating Weight 181000 lb (82100 kg)
Chassis Weight 59223 lb (26863 kg)
Body Weight 17306 lb (7850 kg)
Target Gross Machine Weight 181000 lb (82100 kg)
Nominal Payload Class (100%) 51.6 ton (US) (46.8 t)
Top Speed - Loaded 49.2 mile/h (79.2 km/h)
Body Capacity - SAE 2:1 40.8 yd³ (31.2 m³)
Maximum Payload Class (110%) 56.7 ton (US) (51.4 ton (US))
Not to Exceed Payload (120%) 61.9 ton (US) (56.1 ton (US))
Target Payload Capacity 51.6 ton (US) (46.8 ton (US))
Forward - 1 8 mile/h (12.9 km/h)
Forward - 2 10.9 mile/h (17.5 km/h)
Forward - 3 14.8 mile/h (23.8 km/h)
Forward - 4 19.8 mile/h (31.9 km/h)
Forward - 5 26.9 mile/h (43.3 km/h)
Forward - 6 36.2 mile/h (58.3 km/h)
Forward - 7 49.2 mile/h (79.2 km/h)
Reverse 10.4 mile/h (16.7 km/h)
Differential Ratio 2.74:1
Planetary Ratio 4.80:1
Total Reduction Ratio 13.14:1
Brake Surface - Front 216 in² (1395 cm²)
Brake Surface - Rear 7794 in² (50281 cm²)
Brake Standards ISO 3450:1996
Pump Flow - High Idle 118 gal/min (448 l/min)
Relief Valve Setting - Raise 2750 psi (18950 kPa)
Relief Valve Setting - Lower 500 psi (3450 kPa)
Body Raise Time - High Idle 7.5 s (7.5 s)
Body Lower Time - Float 10 s (10 s)
Body Power Down - High Idle 10 s (10 s)
Heaped 2:1 (SAE) 40.8 yd³ (31.2 m³)
Struck 31.3 yd³ (23.9 m³)
Heaped 2:1 (SAE) 40.9 yd³ (31.3 m³)
Struck 31.3 yd³ (23.9 m³)
Front Axle - Empty 51.4 % (51.4 %)
Front Axle - Loaded 34.2 % (34.2 %)
Rear Axle - Empty 48.6 % (48.6 %)
Rear Axle - Loaded 65.8 % (65.8 %)
Rear axle - Oscillation 8.9 ° (8.9 °)
Empty Loaded Cylinder Stroke Front 9.2 in (234 mm)
Empty Loaded Cylinder Stroke Rear 5.8 in (149 mm)
Fuel Tank 140 gal (US) (530 l)
Cooling System 33 gal (US) (125 l)
Differential - Final Drives 47 gal (US) (180 l)
Steering Tank 14.5 gal (US) (55 l)
Steering System - Including Tank 23 gal (US) (87 l)
Brake Hoist System 60 gal (US) (227 l)
Brake/Hoist Hydraulic Tank 38 gal (US) (145 l)
Crankcase 17 gal (US) (64 l)
DEF Tank 6 gal (US) (21 l)
Torque Converter - Transmission System 17 gal (US) (64 l)
Standard Tire 21.00R33 (E4)
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
ROPS Standards ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
Sound Standards (1) Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment.
Sound Standards (2) Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 115 dB(A).
Sound Standards (3) Operator Equivalent Sound Pressure Level (Leq) is 74 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab.
Turning Diameter - Front 57.7 ft (17.6 m)
Steering Standards ISO 5010:2007
Steer Angle 31 ° (31 °)
Turning Circle - Clearance Diameter 66.6 ft (20.3 m)
Height - Top of ROPS 12.8 ft (3901 mm)
Inside Body Depth - Maximum 5.7 ft (1737 mm)
Overall Body Length 26.8 ft (8168 mm)
Inside Body Length 19 ft (5781 mm)
Overall Length 28.9 ft (8808 mm)
Wheel Base 13 ft (3960 mm)
Rear Axle - Tail 9.5 ft (2895 mm)
Ground Clearance 1.6 ft (518 mm)
Dump Clearance 1.5 ft (457 mm)
Loading Height - Empty 11.6 ft (3541 mm)
Overall Height - Body Raised 27.1 ft (8257 mm)
Operating Width 15.7 ft (4780 mm)
Centerline Front Tire Width 10.4 ft (3165 mm)
Engine Guard Clearance 2 ft (611 mm)
Outside Body Width 12.9 ft (3931 mm)
Inside Body Width 11.9 ft (3627 mm)
Front Canopy Height 13.7 ft (4164 mm)
Rear Axle - Clearance 1.9 ft (579 mm)
Centerline of Rear Dual Tire Width 8.7 ft (2651 mm)
Overall Tire Width 12.9 ft (3931 mm)

Benefits and Features

Our goal in designing our U.S. EPA Tier 4 Final/EU Stage IV solution was to first provide our customers with a product that meets applicable emission standards and secondly make it simple to operate, maintain and manage. With dozens of Cat products using similar systems, we've designed parts commonality and ease of use into our solution. For the 772G specifically, you will add DEF fluid (Diesel Exhaust Fluid) to a small tank next to the fuel tank. This tank holds 27 liters fluid (approximately 6 gallons), 21 liters usable fluid of DEF and is filled at the same intervals as the fuel tank. The rest of the process is automatic and hands free to your operator. The systems and components of our solution use Selective Catalytic Reduction to control emissions, and they are purpose built for the applications you'll use them in. For cold environments, the system is heated, and for hot environments, the system is cooled. Our solution has three stages; NOx reduction in the engine is achieved by reintroducing a very small percentage of cooled exhaust gas back through the combustion chamber. With mandated low sulfur diesel fuel in today's diesel engines, the exhaust is less corrosive and poses fewer risks to engine life. Our reintroduction of an exhaust mixture lowers combustion temperatures controlling NOx production. Exhaust gases leaving the engine are first routed through a diesel particulate DPF filtration system to reduce particulate matter. The system will then control any remaining NOx by injecting diesel exhaust fluid (DEF) into the exhaust stream. This mixture will undergo selective catalytic reduction, ammonia reduction - eventually breaking down the NOx into inert nitrogen gas and water.

In addition to the shift quality, fuel efficiency and performance benefits of APECS, there are several key safety functions being performed by this technology:

  • Reverse shifts are speed controlled to reduce risk to the operator and the truck's power train components. The shift from forward to reverse will only be executed at truck speeds below 4.8 km/h or 3 mph. Once the truck is in reverse, the truck can go 16.7 km/h (10.4 mph). If this is too fast for your job site conditions, you can limit the speed setting for Reverse.
  • To further protect the transmission, the truck will automatically regulate engine speed during directional shifts.
  • Coasting at high speeds will limit lubrication of the transmission. To avoid this, APECS will only shift to neutral at or below speeds of 8 km/h or 5 mph.
  • Second gear start is a new feature for G Series trucks. It allows the truck to bypass first gear and take off in second gear. This option works well on mostly level and solid underfoot conditions. As the truck pulls away, it has plenty of torque in second gear, and will use less fuel by avoiding the short term but high engine speed demands of first gear. As the truck traverses the haul road and first gear becomes necessary, the truck will automatically drop down into first gear without additional intervention.
  • When in first gear, the 772G locks up the torque converter to produce maximum available rimpull.

An important differentiator for Cat trucks is their outstanding brake performance. The design principle is one of long life and excellent performance in quarry, mine and earthmoving applications.

The goal of our body designs is to provide rated payloads on each haul. Since no two job sites are alike, we offer two body designs, optional side boards for lightweight materials, and two liner options to protect your investment and achieve the best possible wear life.

Cat trucks are manufactured in Decatur, Illinois, where our facility has seen significant updates and is a flag ship for manufacturing at Caterpillar. Because reliability starts with clean parts, our assembly areas are in a dedicated building separate from fabricating. The assembly area is well lit, clean and contamination controlled. Our expert welders work on rotating platforms that provide ergonomic and thorough weld capability on our frames. All of our trucks are checked during design for ease of assembly, manufacture and serviceability. We follow up with process and quality checks at each assembly station using the Andon system, and additional quality inspections are made at the end of the assembly line and at the dealership before it is delivered to you.

A truck is only as productive as its operator. To that end, we have updated the 772G with some key features to help old and new operators be comfortable and confident while operating the truck.

We've made our Vital Information Management System (VIMS) standard because it's important. With VIMS on board, you can access production data, machine health and truck operation statistics. With this data you can make informed decisions on operator training, haul road efficiency and scheduled service intervals. In addition, VIMS reports on event logging, idle time and fuel use. VIMS information is available through the Advisor display inside the cab. Portals to connect and download the data are on the front bumper and inside the cab.

The Truck Payload Management System communicates to the loader operator using red and green lights to indicate when target payloads are on board. In addition, the system will store up to 2,400 payload and cycle time data points that are reported through VIMS. TKPH/TMPH calculates tire condition. It will warn the operator when the design limits are being approached, and it can be programmed to derate the truck to preserve tire life.

Caterpillar offers loading tools that match your application and material types as well as your production requirements. Like the 772G, these machines are designed with important input from our customers and long hours of validation in the field. Whether your individual needs require a front shovel, an excavator or a wheel loader, Caterpillar has the model size, buckets and ground engaging tools to help you load the 772G quickly and efficiently. The 772G can be reasonably pass matched with these Cat loading tools. The number of passes will be determined by bucket size and material density.

  • Wheel Loaders: The 980, 986 are ideal Cat wheel loader options for the 772G with approximately 4 passes each.
  • Hydraulic Shovels: Cat models can include the 6015 at 4 passes and the 6018 at 2 passes.
  • Hydraulic Excavators: Cat models can include the 385 and 390 at 4-5 passes.

Your Cat G Series truck is designed to provide operators and technicians with easy access to common service points like engine lockout, machine system lockout, fluid level sight gauges, grease fittings and access to the engine for regularly scheduled maintenance.

  • Engine oil and filter change interval is 500 hours under normal operating conditions
  • Hydraulic filters have a 1,000 hour life under normal operating conditions
  • VIMS trend analysis can track machine health and operation
  • A brake wear indicator is standard
  • Automatic lubrication is available as optional equipment
  • New bumper-mounted ground-level access to fuses and breakers, ET and VIMS ports in right side service center
  • The radiator and cooling cores are aluminum and modular offering easy cleaning or replacement
  • Oil sampling ports are provided for quick and clean collection for analysis
  • Fuel system features electric priming
  • Fast fill fuel is optional

When you purchase a Cat machine, you have both Caterpillar and your Cat dealer standing with you. The resources available to you by working closely with your Cat dealer are extraordinary. With capabilities that range from complete service agreements, to site support to production studies to our global parts networks, we are committed to you, your business and making sure your equipment is running at peak efficiency. Whether you need a rental machine, operator training, assistance with financing or a machine rebuilt, our dealers have the experience, people and application knowledge to help you succeed. For more information about our services, our company, our dealers and the services we can provide, please reach out to your local Cat dealer, or visit us at one of the following web sites:

  • www.finance.cat.com
  • www.safety.cat.com
  • www.mining.cat.com
  • www.Caterpillar.com
  • www.Cat.com