Key Specs
The Cat® 777 is engineered to be the most efficient 100-ton mechanical truck in the industry. With your input, we have designed and manufactured a truck that is reliable, durable, and economical, offering comfort, confidence, and control to its operators. With an improved access system designed to minimize slips and falls, this truck provides firm footing and stability in less than perfect conditions.
Get the job done faster and more efficiently with increased travel speeds and improved traction control.
Utilizing Adaptive Economy mode helps save on fuel consumption while maintaining productivity.
Left-side seat placement allows for easier operation and comfort throughout the day with greater visibility to the work area.
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| Target Payload (100%) | 101.1 ton (US) 91.7 t |
| Top Speed - Loaded | 40.9 mile/h 65.9 km/h |
| Maximum Working Payload (110%) | 111.2 ton (US) 100.9 t |
| Maximum Allowable Payload (120%)* | 121.3 ton (US) 110.1 t |
| Body Capacity - SAE 2:1 | 83.1 yd³ 63.5 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. |
| Engine Model | Cat® C32B Cat® C32B |
| Gross Power - SAE J1995:2014 | 1025 hp 765 kW |
| Net Power - SAE J1349:2011 | 916 hp 683 kW |
| Bore | 5.7 in 145 mm |
| Stroke | 6.4 in 162 mm |
| Displacement | 1959 in³ 32.1 l |
| Peak Torque - Speed | 1200 r/min 1200 r/min |
| Engine Speed | 1800 r/min 1800 r/min |
| Cylinders | 12 12 |
| Engine Power - ISO 14396 | 1008 hp 752 kW |
| Net Torque Rise | Tier 4: 39%. Tier 2: 37% Tier 4: 39%. Tier 2: 37% |
| 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 (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). |
| Note (3) | Available as U.S. EPA Tier 4 Final/EU Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards. Available as U.S. EPA Tier 4 Final/EU Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards. |
| Note (4) | Meets China Nonroad Stage III emission standards equivalent to Tier 3 or Tier 2. Meets China Nonroad Stage III emission standards equivalent to Tier 3 or Tier 2. |
| Struck | 56.3 yd³ 43.1 m³ |
| Heaped (SAE 2:1)* | 83.8 yd³ 64.1 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 |
| SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3) | 116.8 yd³ 89.3 m³ |
| SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3) | 139 yd³ 106 m³ |
| SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3) | 144 yd³ 110 m³ |
| SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3) | 164.6 yd³ 125.9 m³ |
| Struck | 54.8 yd³ 41.9 m³ |
| Heaped (SAE 2:1)* | 78.6 yd³ 60.1 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 |
| Front Axle - Empty | 42 % 42 % |
| Front Axle - Loaded | 33 % 33 % |
| Rear Axle - Empty | 58 % 58 % |
| Rear Axle - Loaded | 67 % 67 % |
| Forward - 1 | 6.6 mile/h 10.7 km/h |
| Forward - 2 | 9.1 mile/h 14.6 km/h |
| Forward - 3 | 11.9 mile/h 19.2 km/h |
| Forward - 4 | 16.6 mile/h 26.7 km/h |
| Forward - 5 | 22.5 mile/h 36.2 km/h |
| Forward - 6 | 30.2 mile/h 48.6 km/h |
| Forward - 7 | 40.9 mile/h 65.9 km/h |
| Reverse | 7.5 mile/h 12.1 km/h |
| Note | Maximum travel speeds with standard 27.00R49 (E4) tires. Maximum travel speeds with standard 27.00R49 (E4) tires. |
| 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 |
| Brake Standards | ISO 3450-2011 ISO 3450-2011 |
| Brake Surface Area - Front | 6331 in² 40846 cm² |
| Brake Surface Area - Rear | 15828 in² 102116 cm² |
| Fuel Tank (1) | 300 gal (US) 1136 l |
| Fuel Tank (2) | 350 gal (US) 1325 l |
| Cooling System | 61 gal (US) 231 l |
| Crankcase | 28.7 gal (US) 109 l |
| Differentials | 59.9 gal (US) 227 l |
| Final Drive - Each | 20 gal (US) 76 l |
| Steering System - Including Tank | 14.1 gal (US) 53.6 l |
| Brake Hoist System | 117 gal (US) 444 l |
| Torque Converter - Transmission System | 36.5 gal (US) 138.5 l |
| Pump Flow - High Idle | 120.9 gpm 458 L/min |
| Relief Valve Setting - Raise | 2750 psi 18950 kPa |
| Relief Valve Setting - Lower | 500 psi 3450 kPa |
| Body Raise Time - High Idle | 15 s 15 s |
| Body Lower Time - Float | 13 s 13 s |
| Body Lower Time - High Idle | 13 s 13 s |
| 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 mm |
| Standard Tire | 27.00R49 (E4) 27.00R49 (E4) |
| Note (1) | Productive capabilities of the 777 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 777 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. |
| Target Gross Machine Weight | 363000 lb 164654 kg |
| 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. |
| Turning Diameter - Front | 83 ft 25.3 m |
| Steering Standards | ISO 5010:2007 ISO 5010:2007 |
| Steer Angle | 30.5 ° 30.5 ° |
| Turning Circle - Clearance Diameter | 93 ft 28.4 m |
| 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. |
| 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 83 dB(A). 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 83 dB(A). |
| 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. |
Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.
Fatigued and distracted equipment operators can pose a severe risk to themselves and others. The consequences can be costly, even fatal. The Cat® Detect Driver Safety System (DSS) is an in-cab detection technology that can help identify and address fatigue and distraction events, enhancing operator safety.
Fatigued and distracted equipment operators can pose a severe risk to themselves and others. The consequences can be costly, even fatal. The Cat® Detect Driver Safety System (DSS) is an in-cab detection technology that can help identify and address fatigue and distraction events, enhancing operator safety.
Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.
Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.
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