Off-Highway Trucks 777G Redefining performance and comfort

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Overview

G Series represents a new era for this size class from Caterpillar. With your input, we have designed and manufactured a truck that is reliable, economical and offers comfort, confidence, and control for your operators. Your long-term success is our goal and with G Series trucks, we’re on the right road.

Up To 13% Less Fuel Consumption

Adaptive Economy Mode improves fuel consumption while maintaining productivity

Expanded Comfort

New left side seat placement allows for an easier operation and new levels of comfort all throughout the work day

Improved Performance

Get the job done faster and more efficiently with increased travel speeds and improved traction control

BUILT IN SAFETY FEATURES
A FOCUS ON PERSONNEL
The 777G is designed to minimize slips and falls, providing firm footing and stability.
- Ground level daily check points
- Low-effort, integrated access system with hand rails for three-points of contact
- Aggressive tread plate on all step areas with lighted access for after dark
- Integrated windshield washing platform
CONFIDENCE AND CONTROL
Confident operators will move material quickly, efficiently, and profitably.
- Wet Disc Braking is standard on all four corners of the truck
- Four corner park brake for slope holding capability and brake wear indicator
- Automatic Retarding Control (ARC) for downhill grades
- New Traction Control System (TCS)
VISIBILITY
The 777G supports your site safety plan with object detection.
- Visual or audible warning of people or objects close to the machine
- A combination of cameras and radar to identify potential hazards
KEY FEATURES
The 777G is solidly constructed for safety.
- Rollover and Falling Object Protection is part of the cab structure
- Emergency egress available through the right side hinged window
- Laminated glass is used in the front and left side windows
- Ground level engine shutdown
- Back-up alarm
OPERATOR SAFETY
Providing features that fit your operator’s needs.
- Fully adjustable and suspended seat
- Integrated three-point safety belt
- Trainer seat with lap belt facilitates on-the-job task training
- Audible warnings for Events and fluid level monitoring
- Automatic derate of the engine possible on some events
JOB SITE SAFETY
Safety is a key to hauling productively.
- Speed limiting on the haul is new and more efficient than gear limiting
- Excellent visibility with mirror and lighting options
- Secondary steering in the event of a shutdown
- Speed limiting during body up operations
Read More
DESIGNED FOR THE OPERATORS
COMFORT
The comfort of your crew will dictate their productivity and awareness on the job.
- Easy, low-effort access to the cab
- Ergonomic, intuitive controls
- Left side power window
- Automatic temperature control inside the cab
- Throttle lock convenience for long, uphill climbs
- The cab is spacious with window area that supports visibility
- An integrated footrest provides comfort and support
- Sound suppression has decreased noise by 50%
- The cab is isolation mounted reducing noise and vibration
- Lighting packages illuminate both to the side and front of the vehicle
- Automotive quality shifting from new transmission controls
CONFIDENCE AND CONTROL

Strong, predictable performance will help your operators achieve the lowest cost per ton.
- ARC reduces operator effort and controls braking on downhill grades
- Performance and health information at a glance using well-lit gauges and the Advisor Message Display
- Solid steering performance from a design that maintains its integrity
- Stopping power from fade-resistant brakes – purpose-built for off-road applications and the loads carried by the 777G
- TCS is now steering sensitive and uses the service brakes to control wheel slip. The result: faster activation and improved response to wheel slip
- Visibility is excellent with extensive mirror options, large window areas and object detection
Cab layout subject to change with optional equipment.

INFORMATION

The Advisor display and VIMS software are important reporting tools that help you analyze:
- Productivity, haul road efficiency, operator skill
- Fuel use, cycle times, idle time
- Machine health and Events
Read More
REDUCE ENVIRONMENTAL IMPACT
ENVIRONMENTAL RESPONSIBILITY
As you progress towards a more sustainable business model, the Cat 777G can help.
FUEL AND EMISSIONS
- There are substantial fuel saving strategies on the 777G
- Two fuel economy modes can be adjusted to meet your daily production needs
- For the EU, Stage V emission controls are available
SOUND
- Operator noise is reduced by 50%
- Spectator noise levels can be lowered up to 50% with the optional "XQ" package
COMPONENT LIFE
- Remanufactured parts are an economical and eco-friendly alternative to new
- Extend tire life by using the TKPH/TMPH feature that calculates tire loading
- A mud protection package is available to help keep power train components clean
- Castings and box section frame construction ensure long-life
- A new rear axle housing adds strength and enables axle filtration and lubrication
- Hydraulic oil filter life is extended to 1,000 hours under normal conditions
- Autostall enables quick operating temperatures for best performance and life
- Delayed Engine Shutdown prevents hot shut downs that can reduce component life
TIER 4 / STAGE V
Caterpillar’s simple solution is transparent to your operators, controls emissions, and increases fuel efficiency.
- Two engine-mounted diesel oxidation catalyst canisters control particulate matter
- Our NRS Technology replaces a portion of intake air with exhaust gas to control combustion temperatures and NOx production
- Precise, extremely fine atomization of fuel under all load conditions
Read More
DO MORE WITH LESS FUEL
CUTTING YOUR FUEL COSTS
The 777G introduces several key fuel conservation features:
- Auto Neutral Idle – as the 777G idles in a forward gear, the transmission will automatically slip in and out of a neutral state to avoid stalling the torque converter and raising engine rpm.
- Engine Idle Shutdown – when your G Series truck is in park and idles for more than a preset time, the truck will initiate engine shutdown to conserve fuel. This feature can be time adjusted or turned on or off according to your specific needs.
- Speed Limiting – while you can continue to gear limit your G Series trucks, Caterpillar offers speed limiting that allows the truck to travel at a more fuel efficient engine speed and gear selection.
- Transmission Controls – New APECS transmission controls increase fuel efficiency by maintaining momentum and speed on grade.
ECONOMY MODES
- Standard Economy Mode – G Series can save fuel by adjusting engine power through this newly adjustable economy mode. Adjust the power based on your site, fleet, and economic conditions. The power can be reduced from 0.5 to 15 percent.
- Adaptive Economy Mode – New for G Series – this economy mode requires a baseline for production from you using the Advisor display. As the truck transits the haul cycle, it is constantly evaluating its ability to meet your baseline in a reduced power rating. Where full power is needed, full power is applied. Where reduced power works, reduced power is applied. It’s fully automatic with no special operation required.
Read More
PERFORMANCE AND PRODUCTIVITY
EFFICIENT APPLICATION OF POWER AND TECHNOLOGY
The 777G will haul your material faster and more efficiently with increases in torque, new transmission controls, and higher travel speeds.
- A 7% increase in torque puts more power to the ground
- New transmission controls carry more torque through the shifts, producing faster cycle times – most noticeably on grades
- An increase in travel speed in 7th gear also helps generate faster cycle times
TRACTION CONTROL
G Series introduces benefits to your fleet when running in wet conditions by introducing a more responsive Traction Control System.
- The system is steering sensitive to determine slip vs. high speed turns
- The system engages at slower speeds returning traction sooner
- The system engages sooner in the slip, potentially reducing tire wear
- The system modulates instantly between the two-wheel groups for control
- Using the hydraulic service brakes facilitates the instant modulation and responsiveness
Read More
LONG TERM VALUE AND DURABILITY
PROVEN COMPONENTS FOR RELIABLE PERFORMANCE
At Caterpillar, we know keeping your trucks running is critical to At Caterpillar, we know keeping your trucks running is critical to your business, so that’s why we use industry leading technology to ensure maximum machine availability and reliability.

STRUCTURAL STRENGTH
The backbone of the 777G is its frame. Our frames are designed for off-road integrity and are built for more than one life cycle.
- We strategically apply castings with box section construction to manage off-road stresses
- A new front frame design increases the approach angle on ramps and grades
- A new robust rear axle housing supports the truck's performance increases
BRAKE PERFORMANCE
Cat trucks provide powerful, fade-resistant braking for your off-road applications. G Series introduces new ways to extend brake life.
- Additional springs in the design reduce wear and increase service life
- All four corners have wet disc braking standard (front brake lockout no longer an option)
- Slope holding capability benefits from all-wheel parking brake actuation
- Brake life can be extended by choosing the optional Cat Engine Brake
- A brake wear indicator keeps you informed of maintenance timing
- Extended life brake material is available for extreme applications
Not only proven, but continuously improving with the latest technical advantages and efficiencies.
SUSPENSION
- Front struts use our proven king pin design for effective absorption of haul road shocks
- Rear suspension cylinders have been inverted to minimize contamination
PLANETARY POWERSHIFT TRANSMISSION WITH APECS CONTROLS
- New APECS controls are delivering performance improvements
- Torque shift management allows the truck to power through shift points
- Part throttle shifting provides an exceptionally smooth ride
- Electronic Clutch Pressure Control (ECPC) electronically controls clutch pressures for long-life
UPDATED CAT C32
- For the 777G, the engine and torque converter are producing 7% more usable torque giving the truck new performance levels and quick haul cycles
- Cat MEUI™ injectors provide high pressure, fine atomization for fuel efficiency and load response
- Low pressure fuel lines from the tank to the engine simplify service
- The C32 is carefully balanced with vibration controls that reduce noise and protect against unnecessary harmonics
- Cooling is provided by either a demand fan (standard for Tier 4/Stage V machines) or a conventional cooling fan
- Ground level engine shutdown switch for safety
- Excellent high-altitude capability
STEERING
- The steering linkage is designed to provide good feedback to the operator
- The Cat king pin front suspension system maintains steering tolerances and also tire alignment
your business, so that’s why we use industry leading technology to ensure maximum machine availability and reliability.
Read More
HEAVEY DUTY CONSTRUCTION
BODY OPTIONS
DUAL SLOPE BODY
If your haul profile includes steep slopes, the Dual Slope body offers excellent material retention.
- The Dual Slope has a heaped capacity of 60.2 m³ (78.8 yd³) in its standard configuration
- Two sizes of sideboards are available to increase capacity for lighter weight materials
- 400 BNH steel on interior surfaces offers excellent wear characteristics
- Material is carried low and centered for stability
- A single 16 mm (0.62 in) steel liner option is available for this body
- A single rubber liner is available for this body
X BODY
If you're feeding a crusher, the flat floor of the X Body is an excellent choice for metering material.
- The X Body also offers excellent material retention and stability
- 400 BNH and 450 BNH steel are used on internal surfaces for wear protection
- Two steel liner options are available for the X Body
- A rubber liner option is also available
THE RUBBER LINER
This important option will protect your truck’s body in hard rock applications.
- Available for the Dual Slope and X Bodies
- Suppresses noise and vibration to the operator
- Suppresses spectator noise
- Prolongs body life in high impact, hard rock applications
COAL BODIES
For lightweight materials, Caterpillar offers coal bodies of varying capacities.
- Material density will dictate the recommended body size
- 400 BNH steel is used for long wear life
- Capacities include:
  – 89 m³ (116 yd³)
  – 106 m³ (139 yd³)
  – 110 m³ (144 yd³)
  – 126 m³ (165 yd³)
Read More
PURPOSE BUILT SPECIALTY CAT ATTACHMENTS
SPECIALTY CAT ATTACHMENTS
XQ PACKAGE – FOR YOUR SOUND SENSITIVE ENVIRONMENTS
- The XQ package reduces the 777G’s spectator noise level to 112 dB(A) using both the ISO 6393:2008 and ISO 6395:2008 test procedures. This test result has an accuracy of plus or minus 1 dB(A).
- This package includes a noise reduced Cat C32 engine, panels that enclose the engine compartment, and sound reduction material within the radiator cowl.
- Sound reduction material in the cab is standard on the truck
MUD PROTECTION PACKAGE – FOR STICKY, MUDDY ENVIRONMENTS
A mud package that encloses the engine compartment will help protect against sticky, difficult material.
Read More
TOP TIER SERVICE AND SUPPORT
SERVICE CENTERS - FLUID FILL
You will save both time and money using the optional fluid fill service center.
- Fill and extraction for all fluids in one location
- Keypad tells employees current fluid levels
- Includes all oils, coolant, and fuel
- Conveniently located at ground level
- Lighted for night-time use
SERVICE CENTERS – ELECTRICAL CONNECTIONS
- The convenience of ground level access to VIMS data
- Ground level access to ET port
- Master disconnect switch
- Engine lockout switch
- Hydraulics lockout switch
- Breaker access
BRAKE MONITORING
G Series introduces several brake system updates:
- A brake wear indicator is standard
- Additional internal springs increase separation forces to increase life
Read More

1 - of items

A FOCUS ON PERSONNEL

The 777G is designed to minimize slips and falls, providing firm footing and stability.

Ground level daily check points
Low-effort, integrated access system with hand rails for three-points of contact
Aggressive tread plate on all step areas with lighted access for after dark
Integrated windshield washing platform

CONFIDENCE AND CONTROL
Confident operators will move material quickly, efficiently, and profitably.

Wet Disc Braking is standard on all four corners of the truck
Four corner park brake for slope holding capability and brake wear indicator
Automatic Retarding Control (ARC) for downhill grades
New Traction Control System (TCS)

VISIBILITY
The 777G supports your site safety plan with object detection.

Visual or audible warning of people or objects close to the machine
A combination of cameras and radar to identify potential hazards

KEY FEATURES
The 777G is solidly constructed for safety.

Rollover and Falling Object Protection is part of the cab structure
Emergency egress available through the right side hinged window
Laminated glass is used in the front and left side windows
Ground level engine shutdown
Back-up alarm

OPERATOR SAFETY
Providing features that fit your operator’s needs.

Fully adjustable and suspended seat
Integrated three-point safety belt
Trainer seat with lap belt facilitates on-the-job task training
Audible warnings for Events and fluid level monitoring
Automatic derate of the engine possible on some events

JOB SITE SAFETY
Safety is a key to hauling productively.

Speed limiting on the haul is new and more efficient than gear limiting
Excellent visibility with mirror and lighting options
Secondary steering in the event of a shutdown
Speed limiting during body up operations

A FOCUS ON PERSONNEL

COMFORT

The comfort of your crew will dictate their productivity and awareness on the job.

Easy, low-effort access to the cab
Ergonomic, intuitive controls
Left side power window
Automatic temperature control inside the cab
Throttle lock convenience for long, uphill climbs
The cab is spacious with window area that supports visibility
An integrated footrest provides comfort and support
Sound suppression has decreased noise by 50%
The cab is isolation mounted reducing noise and vibration
Lighting packages illuminate both to the side and front of the vehicle
Automotive quality shifting from new transmission controls

CONFIDENCE AND CONTROL

Strong, predictable performance will help your operators achieve the lowest cost per ton.

ARC reduces operator effort and controls braking on downhill grades
Performance and health information at a glance using well-lit gauges and the Advisor Message Display
Solid steering performance from a design that maintains its integrity
Stopping power from fade-resistant brakes – purpose-built for off-road applications and the loads carried by the 777G
TCS is now steering sensitive and uses the service brakes to control wheel slip. The result: faster activation and improved response to wheel slip
Visibility is excellent with extensive mirror options, large window areas and object detection

Cab layout subject to change with optional equipment.

INFORMATION

The Advisor display and VIMS software are important reporting tools that help you analyze:

Productivity, haul road efficiency, operator skill
Fuel use, cycle times, idle time
Machine health and Events

ENVIRONMENTAL RESPONSIBILITY

As you progress towards a more sustainable business model, the Cat 777G can help.
FUEL AND EMISSIONS

There are substantial fuel saving strategies on the 777G
Two fuel economy modes can be adjusted to meet your daily production needs
For the EU, Stage V emission controls are available

SOUND

Operator noise is reduced by 50%
Spectator noise levels can be lowered up to 50% with the optional "XQ" package

COMPONENT LIFE

Remanufactured parts are an economical and eco-friendly alternative to new
Extend tire life by using the TKPH/TMPH feature that calculates tire loading
A mud protection package is available to help keep power train components clean
Castings and box section frame construction ensure long-life
A new rear axle housing adds strength and enables axle filtration and lubrication
Hydraulic oil filter life is extended to 1,000 hours under normal conditions
Autostall enables quick operating temperatures for best performance and life
Delayed Engine Shutdown prevents hot shut downs that can reduce component life

TIER 4 / STAGE V
Caterpillar’s simple solution is transparent to your operators, controls emissions, and increases fuel efficiency.

Two engine-mounted diesel oxidation catalyst canisters control particulate matter
Our NRS Technology replaces a portion of intake air with exhaust gas to control combustion temperatures and NOx production
Precise, extremely fine atomization of fuel under all load conditions

ENVIRONMENTAL RESPONSIBILITY

CUTTING YOUR FUEL COSTS

The 777G introduces several key fuel conservation features:

Auto Neutral Idle – as the 777G idles in a forward gear, the transmission will automatically slip in and out of a neutral state to avoid stalling the torque converter and raising engine rpm.
Engine Idle Shutdown – when your G Series truck is in park and idles for more than a preset time, the truck will initiate engine shutdown to conserve fuel. This feature can be time adjusted or turned on or off according to your specific needs.
Speed Limiting – while you can continue to gear limit your G Series trucks, Caterpillar offers speed limiting that allows the truck to travel at a more fuel efficient engine speed and gear selection.
Transmission Controls – New APECS transmission controls increase fuel efficiency by maintaining momentum and speed on grade.

ECONOMY MODES

Standard Economy Mode – G Series can save fuel by adjusting engine power through this newly adjustable economy mode. Adjust the power based on your site, fleet, and economic conditions. The power can be reduced from 0.5 to 15 percent.
Adaptive Economy Mode – New for G Series – this economy mode requires a baseline for production from you using the Advisor display. As the truck transits the haul cycle, it is constantly evaluating its ability to meet your baseline in a reduced power rating. Where full power is needed, full power is applied. Where reduced power works, reduced power is applied. It’s fully automatic with no special operation required.

CUTTING YOUR FUEL COSTS

EFFICIENT APPLICATION OF POWER AND TECHNOLOGY

The 777G will haul your material faster and more efficiently with increases in torque, new transmission controls, and higher travel speeds.

A 7% increase in torque puts more power to the ground
New transmission controls carry more torque through the shifts, producing faster cycle times – most noticeably on grades
An increase in travel speed in 7th gear also helps generate faster cycle times

TRACTION CONTROL
G Series introduces benefits to your fleet when running in wet conditions by introducing a more responsive Traction Control System.

The system is steering sensitive to determine slip vs. high speed turns
The system engages at slower speeds returning traction sooner
The system engages sooner in the slip, potentially reducing tire wear
The system modulates instantly between the two-wheel groups for control
Using the hydraulic service brakes facilitates the instant modulation and responsiveness

EFFICIENT APPLICATION OF POWER AND TECHNOLOGY

PROVEN COMPONENTS FOR RELIABLE PERFORMANCE

At Caterpillar, we know keeping your trucks running is critical to At Caterpillar, we know keeping your trucks running is critical to your business, so that’s why we use industry leading technology to ensure maximum machine availability and reliability.

STRUCTURAL STRENGTH
The backbone of the 777G is its frame. Our frames are designed for off-road integrity and are built for more than one life cycle.

We strategically apply castings with box section construction to manage off-road stresses
A new front frame design increases the approach angle on ramps and grades
A new robust rear axle housing supports the truck's performance increases

BRAKE PERFORMANCE
Cat trucks provide powerful, fade-resistant braking for your off-road applications. G Series introduces new ways to extend brake life.

Additional springs in the design reduce wear and increase service life
All four corners have wet disc braking standard (front brake lockout no longer an option)
Slope holding capability benefits from all-wheel parking brake actuation
Brake life can be extended by choosing the optional Cat Engine Brake
A brake wear indicator keeps you informed of maintenance timing
Extended life brake material is available for extreme applications

Not only proven, but continuously improving with the latest technical advantages and efficiencies.
SUSPENSION

Front struts use our proven king pin design for effective absorption of haul road shocks
Rear suspension cylinders have been inverted to minimize contamination

PLANETARY POWERSHIFT TRANSMISSION WITH APECS CONTROLS

New APECS controls are delivering performance improvements
Torque shift management allows the truck to power through shift points
Part throttle shifting provides an exceptionally smooth ride
Electronic Clutch Pressure Control (ECPC) electronically controls clutch pressures for long-life

UPDATED CAT C32

For the 777G, the engine and torque converter are producing 7% more usable torque giving the truck new performance levels and quick haul cycles
Cat MEUI™ injectors provide high pressure, fine atomization for fuel efficiency and load response
Low pressure fuel lines from the tank to the engine simplify service
The C32 is carefully balanced with vibration controls that reduce noise and protect against unnecessary harmonics
Cooling is provided by either a demand fan (standard for Tier 4/Stage V machines) or a conventional cooling fan
Ground level engine shutdown switch for safety
Excellent high-altitude capability

STEERING

The steering linkage is designed to provide good feedback to the operator
The Cat king pin front suspension system maintains steering tolerances and also tire alignment

your business, so that’s why we use industry leading technology to ensure maximum machine availability and reliability.

PROVEN COMPONENTS FOR RELIABLE PERFORMANCE

BODY OPTIONS

DUAL SLOPE BODY
If your haul profile includes steep slopes, the Dual Slope body offers excellent material retention.

The Dual Slope has a heaped capacity of 60.2 m³ (78.8 yd³) in its standard configuration
Two sizes of sideboards are available to increase capacity for lighter weight materials
400 BNH steel on interior surfaces offers excellent wear characteristics
Material is carried low and centered for stability
A single 16 mm (0.62 in) steel liner option is available for this body
A single rubber liner is available for this body

X BODY
If you're feeding a crusher, the flat floor of the X Body is an excellent choice for metering material.

The X Body also offers excellent material retention and stability
400 BNH and 450 BNH steel are used on internal surfaces for wear protection
Two steel liner options are available for the X Body
A rubber liner option is also available

THE RUBBER LINER
This important option will protect your truck’s body in hard rock applications.

Available for the Dual Slope and X Bodies
Suppresses noise and vibration to the operator
Suppresses spectator noise
Prolongs body life in high impact, hard rock applications

COAL BODIES
For lightweight materials, Caterpillar offers coal bodies of varying capacities.

Material density will dictate the recommended body size
400 BNH steel is used for long wear life
Capacities include:
– 89 m³ (116 yd³)
– 106 m³ (139 yd³)
– 110 m³ (144 yd³)
– 126 m³ (165 yd³)

SPECIALTY CAT ATTACHMENTS

XQ PACKAGE – FOR YOUR SOUND SENSITIVE ENVIRONMENTS

The XQ package reduces the 777G’s spectator noise level to 112 dB(A) using both the ISO 6393:2008 and ISO 6395:2008 test procedures. This test result has an accuracy of plus or minus 1 dB(A).
This package includes a noise reduced Cat C32 engine, panels that enclose the engine compartment, and sound reduction material within the radiator cowl.
Sound reduction material in the cab is standard on the truck

MUD PROTECTION PACKAGE – FOR STICKY, MUDDY ENVIRONMENTS
A mud package that encloses the engine compartment will help protect against sticky, difficult material.

SERVICE CENTERS - FLUID FILL

You will save both time and money using the optional fluid fill service center.

Fill and extraction for all fluids in one location
Keypad tells employees current fluid levels
Includes all oils, coolant, and fuel
Conveniently located at ground level
Lighted for night-time use

SERVICE CENTERS – ELECTRICAL CONNECTIONS

The convenience of ground level access to VIMS data
Ground level access to ET port
Master disconnect switch
Engine lockout switch
Hydraulics lockout switch
Breaker access

BRAKE MONITORING
G Series introduces several brake system updates:

A brake wear indicator is standard
Additional internal springs increase separation forces to increase life

SERVICE CENTERS - FLUID FILL

Full Specifications Standard Equipment Optional Equipment

Product Specifications for 777G

Download Print

US
Metric

Engine

Engine Model	Cat® C32 Cat® C32
Gross Power - SAE J1995	1025.0 HP 765.0 kW
Net Power - SAE J1349	945.0 HP 704.0 kW
Net Power - ISO 9249	945.0 HP 704.0 kW
Net Power - 80/1269/EEC	945.0 HP 704.0 kW
Bore	5.7 in 146.0 mm
Stroke	6.4 in 162.0 mm
Displacement	1959.0 in³ 32.1 l
Note (1)	Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard. Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (3)	No engine derating required up to 4600 m (15,000 ft) for Tier 2 Equivalent. No engine derating required up to 4600 m (15,000 ft) for Tier 2 Equivalent.
Net Torque	3899.0 ft-lb 5286.0 N·m
Engine Power - ISO 14396	1012.0 HP 755.0 kW
Note (2)	Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Cylinders	12 12
Peak Torque - Speed	1200.0 r/min 1200.0 r/min
Engine Speed	1800.0 r/min 1800.0 r/min
Net Power	916.0 HP 683.0 kW

Weights - Approximate

Target Gross Machine Weight

363000.0 lb 164654.0 kg

Operating Specifications

Nominal Payload Class (100%)	100.0 ton (US) 90.8 t
Top Speed - Loaded	41.7 mile/h 67.1 km/h
Body Capacity - SAE 2:1	83.8 yd³ 64.1 m³
Note (1)	Capacity with flat floor X Body with liner. Capacity with flat floor X Body with liner.
Note (2)	Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross vehicle weight limitations. Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross vehicle weight limitations.
Maximum Working Payload (110%)	110.0 ton (US) 99.8 t
Maximum Allowable Payload (120%)*	120.0 ton (US) 109.0 t
Target Payload (100%)	100.0 ton (US) 90.8 t

Transmission

Forward - 1	6.8 mile/h 10.9 km/h
Forward - 2	9.2 mile/h 14.8 km/h
Forward - 3	12.5 mile/h 20.1 km/h
Forward - 4	16.9 mile/h 27.2 km/h
Forward - 5	22.9 mile/h 36.9 km/h
Forward - 6	30.7 mile/h 49.4 km/h
Forward - 7	41.7 mile/h 67.1 km/h
Reverse	7.7 mile/h 12.4 km/h
Note	Maximum travel speeds with standard 27.00R49 (E4) tires. Maximum travel speeds with standard 27.00R49 (E4) tires.

Final Drives

Differential Ratio	2.736:1 2.736:1
Planetary Ratio	7.0:1 7.0:1
Total Reduction Ratio	19.1576:1 19.1576:1

Brakes

Brake Standards	ISO 3450-2011 ISO 3450-2011
Brake Surface Area - Front	6331.0 in² 40846.0 cm²
Brake Surface Area - Rear	15828.0 in² 102116.0 cm²

Body Hoists

Pump Flow - High Idle	120.9 gal/min 458.0 l/min
Relief Valve Setting - Raise	2750.0 psi 18950.0 kPa
Relief Valve Setting - Lower	500.0 psi 3450.0 kPa
Body Raise Time - High Idle	15.0 s 15.0 s
Body Lower Time - Float	13.0 s 13.0 s
Body Lower Time - High Idle	13.0 s 13.0 s

Capacity - Dual Slope - 100% Fill Factor

Struck	54.8 yd³ 41.9 m³
Note (1)	Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Note (2)	ISO 6483:1980 ISO 6483:1980
Heaped (SAE 2:1)*	78.8 yd³ 60.2 m³

Weight Distributions - Approximate

Front Axle - Empty	46.0 % 46.0 %
Front Axle - Loaded	33.0 % 33.0 %
Rear Axle - Empty	54.0 % 54.0 %
Rear Axle - Loaded	67.0 % 67.0 %

Suspension

Rear axle - Oscillation	5.4 ° 5.4 °
Empty Loaded Cylinder Stroke Front	2.9 in 74.7 mm
Empty Loaded Cylinder Stroke Rear	2.5 in 66.0 mm

Service Refill Capacities

Fuel Tank (1)	300.0 gal (US) 1136.0 l
Cooling System	60.2 gal (US) 228.0 l
Steering System - Including Tank	14.1 gal (US) 53.6 l
Torque Converter - Transmission System	36.5 gal (US) 138.5 l
Differentials	59.9 gal (US) 227.0 l
Final Drive - Each	20.0 gal (US) 76.0 l
Brake Hoist System	85.0 gal (US) 322.0 l
Fuel Tank (2)	350.0 gal (US) 1325.0 l
Crankcase	28.7 gal (US) 109.0 l
Brake Hoist System - Includes Tank	117.0 gal (US) 444.0 l

Tires

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.
Note (1)	Productive capabilities of the 777G 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 777G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Standard Tire	27.00R49 (E4) 27.00R49 (E4)

ROPS

ROPS Standards	Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards	Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.

Sound

Sound Standards (2)	The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 84 dB(A) for Tier 2 Equivalent. The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 84 dB(A) for Tier 2 Equivalent.
Sound Standards (3)	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.
Sound Standards (1)	The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed. The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.

Steering

Turning Diameter - Front	83.0 ft 25.3 m
Steering Standards	ISO 5010:2007 ISO 5010:2007
Steer Angle	30.5 ° 30.5 °
Turning Circle - Clearance Diameter	93.0 ft 28.4 m

Capacity - X Body - 100% Fill Factor

Struck	56.3 yd³ 43.1 m³
Note (1)	Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Note (2)	ISO 6483:1980 ISO 6483:1980

Capacity - Coal Bodies - 100% Fill Factor

SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3)	116.0 yd³ 89.0 m³
SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3)	165.0 yd³ 126.0 m³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)	139.0 yd³ 106.0 m³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)	144.0 yd³ 110.0 m³

777G Standard Equipment

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POWER TRAIN

Autostall

Engine idle shutdown

Air-To-Air Aftercooler (ATAAC)

Air cleaner with precleaner (2)

Automatic cold mode idle control

Electric priming pump

Electric cold weather start (two starters and four batteries)

Ether starting aid

Exhaust, muffler

Fuel filter/water separator

Turbocharger (2)

Braking system:
– Extended Life Brakes
– Brake wear indicator
– Automatic Retarder Control (ARC) (utilizes oil-cooled, multiple disc brakes)
– Brake release motor (towing)
– Manual retarder (utilizes oil-cooled, multiple disc brakes)
– Oil-cooled, multiple disc (front/rear)
– Parking
– Secondary
– Service

Transmission
– Auto neutral idle
– APECS Software
– ECPC

Part Throttle Shifting
– 7-speed automatic powershift with Torque Shift Management Electronic Clutch Pressure Control
– Body up-shift inhibitor
– Directional shift management
– Downshift inhibitor
– Neutral start switch
– Neutral coast inhibitor
– Reverse shift inhibitor
– Reverse neutralizer during dumping
– Programmable top gear selection

SUSPENSION SYSTEMS

Suspension, rear (EU Compliant)

ELECTRICAL

Alarm, backup

Alternator, 115 ampere

Auxiliary jump start receptacle

Batteries, maintenance-free, 12V (4), 190 amp-hour

Electrical system, 25 AMP, 24V to 12V converter

Lighting system
– Backup light (halogen)
– Directional signals/hazard warning, (front and rear LED)
– Headlights, (halogen) with dimmer
– Payload, indicator lights
– Operator access courtesy lights
– Side profile lights
– Stop/tail lights (LED)
– Service lights

OPERATOR ENVIRONMENT

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
– 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)

Auto temp control

Fluid level monitoring

Hoist lever

Horn, electric

Light – dome

Light – courtesy

Load counter, automatic

Advisor display

VIMS

TPMS

Foot rest

Mirrors – heated

Power port, 24V and 12V (2)

ROPS cab, insulated/sound suppressed

Cat Comfort Series III
– Full air suspension
– Retractable 3-point seat belt with shoulder harness

Steering wheel, padded, tilt and telescopic

Storage compartment

Sun visor

Throttle lock

Window, right side, hinged access/egress

Electric left side window control

Windshield wiper (intermittent) and washer

Tinted, laminated glass

TECHNOLOGY PRODUCTS

Product Link Ready (Level 1)

TKPH/TMPH (Tons Kilometer Per Hour/Tons Mile Per Hour)

Object Detection (4 cameras, 4 radars)

Adaptive economy mode

GUARDS

Engine crankcase

Driveline

Fan and A/C

FLUIDS

Extended Life Coolant to –35° C (–30° F)

OTHER STANDARD EQUIPMENT

Body mounting group

Body safety pin (secures body in up position)

Body down indicator

CD-ROM parts book

Center-mounted rims

Fuel tank (1136 L/300 gal)

Ground level battery disconnect

Ground level engine shutdown

Ground level grease fittings

Reservoirs (separate)
– Brake/hoist
– Steering
– Transmission/torque converter

Rims 19.5 × 49

Rock ejectors

Supplemental steering (automatic)

Tie down eyes

Tow hooks (front)/Tow pin (rear)

Vandalism protection locks

Wiggins fast fuel

Traction Control System (TCS) (new version)

Attachment Zone

777G Optional Equipment

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OPTIONAL EQUIPMENT

Body heat

Body liners

Body sideboards

Cab precleaner

Cat Engine Brake

Clustered grease fittings

Cold weather packages

Fluid fill service center

HID lights

Mirrors, convex

Mirrors, heated

Spare rim

Visibility package (meets ISO 5006 requirements)

Wheel chocks

Work Area Vision System (WAVS)

See how 777G compares against frequently compared products.

US
Metric

Off-Highway Trucks 777G

777G

Nominal Payload Class (100%): 100.0 ton (US); 90.8 t
Engine Model: Cat® C32; Cat® C32
Top Speed - Loaded: 41.7 mile/h; 67.1 km/h

Selected Model

Off-Highway Trucks 775G

775G

Nominal Payload Class (100%): 71.3 ton (US); 64.6 t
Engine Model: Cat® C27; Cat® C27
Top Speed - Loaded: 42.0 mile/h; 67.6 km/h

Model Details

Off-Highway Trucks 777E

777E

Nominal Payload Class (100%): 102.0 ton (US); 92.6 ton (US)
Engine Model: Cat C32; Cat C32
Top Speed - Loaded: 40.9 mile/h; 65.9 km/h

Model Details

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