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Off-Highway Trucks
775 (07)
Off-Highway Trucks
773 (07)
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777 (07)
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Off-Highway Trucks
Selected
775 (07)
775 (07)
Off-Highway Trucks
773 (07)
773 (07)
Off-Highway Trucks
777 (07)
777 (07)
 
Engine
Engine Model
Cat® C27 Cat® C27
Cat® C27 Cat® C27
Cat® C32B Cat® C32B
Rated Engine Speed
2000 r/min 2000 r/min
2000 r/min 2000 r/min
-
Gross Power - SAE J1995
825 HP 615 kW
775 HP 578 kW
1025 HP 765 kW
Net Power - SAE J1349
783 HP 584 kW
733 HP 546 kW
916 HP 683 kW
Net Power - ISO 9249
791 HP 590 kW
741 HP 552 kW
-
Net Power - 80/1269/EEC
791 HP 590 kW
741 HP 552 kW
-
Bore
5.4 in 137 mm
5.4 in 137 mm
5.7 in 145 mm
Stroke
6 in 152 mm
6 in 152 mm
6.4 in 162 mm
Displacement
1648 in³ 27 l
1648 in³ 27 l
1959 in³ 32.1 l
Note (1)
Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard.
Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. Power rating applies at 2,000 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. 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).
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).
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)
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.
Available as Tier 4 Final/Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards. Available as Tier 4 Final/Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards.
Net Torque
2874 ft-lb 3896 N·m
2689 ft-lb 3646 N·m
-
Engine Speed
-
-
1800 r/min 1800 r/min
Engine Power - ISO 14396
813 HP 607 kW
763 HP 569 kW
1008 HP 752 kW
Peak Torque - Speed
1300 r/min 1300 r/min
1300 r/min 1300 r/min
1200 r/min 1200 r/min
Cylinders
-
-
12 12
Net Torque Rise
-
-
Tier 4: 39%. Tier 2: 37% Tier 4: 39%. Tier 2: 37%
Note (4)
-
-
Meets China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2. Meets China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2.
Weights - Approximate
Target Gross Machine Weight
-
-
363000 lb 164654 kg
Maximum Gross Vehicle Weight
246503 lb 111812 kg
226503 lb 102740 kg
-
Operating Specifications
Nominal Payload Class (100%)
71.3 ton (US) 64.6 t
61.7 ton (US) 56 t
-
Top Speed - Loaded
42 mile/h 67.6 km/h
42 mile/h 67.6 km/h
40.9 mile/h 65.9 km/h
Maximum Working Payload (110%)
78.3 ton (US) 71.1 t
67.8 ton (US) 61.5 t
111.2 ton (US) 100.9 t
Maximum Allowable Payload (120%)*
85.5 ton (US) 77.5 t
74 ton (US) 67.1 t
121.3 ton (US) 110.1 t
Body Capacity - SAE 2:1
55.23 yd³ 42.23 m³
46.75 yd³ 35.75 m³
83.1 yd³ 63.5 m³
Note (1)
Capacity with Dual Slope body – no liner. Capacity with Dual Slope body – no liner.
Capacity with Dual Slope body – no liner. Capacity with Dual Slope body – no liner.
Capacity with flat floor X Body with liner. Capacity with flat floor X Body with liner.
Target Payload (100%)
71.3 ton (US) 64.6 t
61.7 ton (US) 56 t
101.1 ton (US) 91.7 t
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
* 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.
Transmission
Forward - 1
6.7 mile/h 10.8 km/h
6.7 mile/h 10.8 km/h
6.6 mile/h 10.7 km/h
Forward - 2
9.4 mile/h 15.1 km/h
9.4 mile/h 15.1 km/h
9.1 mile/h 14.6 km/h
Forward - 3
12.7 mile/h 20.4 km/h
12.7 mile/h 20.4 km/h
11.9 mile/h 19.2 km/h
Forward - 4
17 mile/h 27.4 km/h
17 mile/h 27.4 km/h
16.6 mile/h 26.7 km/h
Forward - 5
23 mile/h 37 km/h
23 mile/h 37 km/h
22.5 mile/h 36.2 km/h
Forward - 6
31.1 mile/h 50.1 km/h
31.1 mile/h 50.1 km/h
30.2 mile/h 48.6 km/h
Forward - 7
42 mile/h 67.6 km/h
42 mile/h 67.6 km/h
40.9 mile/h 65.9 km/h
Reverse
8.8 mile/h 14.1 km/h
8.8 mile/h 14.1 km/h
7.5 mile/h 12.1 km/h
Note
Maximum travel speeds with standard 24.00R35 (E4) tires. Maximum travel speeds with standard 24.00R35 (E4) tires.
Maximum travel speeds with standard 24.00R35 (E4) tires. Maximum travel speeds with standard 24.00R35 (E4) tires.
Maximum travel speeds with standard 27.00R49 (E4) tires. Maximum travel speeds with standard 27.00R49 (E4) tires.
Final Drives
Differential Ratio
3.64:1 3.64:1
3.64:1 3.64:1
2.736:1 2.736:1
Planetary Ratio
4.80:1 4.80:1
4.80:1 4.80:1
7.0:1 7.0:1
Total Reduction Ratio
17.49:1 17.49:1
17.49:1 17.49:1
19.1576:1 19.1576:1
Brakes
Brake Surface - Front
25.7 in² 655 cm²
257 in² 655 cm²
-
Brake Surface - Rear
9497 in² 61269 cm²
9497 in² 61269 cm²
-
Brake Standards
ISO 3450:2011 ISO 3450:2011
ISO 3450:2011 ISO 3450:2011
ISO 3450-2011 ISO 3450-2011
Brake Surface Area - Rear
-
-
15828 in² 102116 cm²
Brake Surface Area - Front
-
-
6331 in² 40846 cm²
Body Hoists
Pump Flow - High Idle
118 gal/min 448 l/min
118 gal/min 448 l/min
120.9 gal/min 458 l/min
Relief Valve Setting - Raise
2502 psi 17250 kPa
2502 psi 17250 kPa
2750 psi 18950 kPa
Relief Valve Setting - Lower
500 psi 3450 kPa
500 psi 3450 kPa
500 psi 3450 kPa
Body Raise Time - High Idle
9.5 s 9.5 s
9.5 s 9.5 s
15 s 15 s
Body Lower Time - Float
12.5 s 13 s
13 s 13 s
13 s 13 s
Body Power Down - High Idle
13 s 13 s
13 s 13 s
-
Body Lower Time - High Idle
-
-
13 s 13 s
Capacity - Dual Slope - 100% Fill Factor
Struck
42.7 yd³ 32.6 m³
35.13 yd³ 26.86 m³
54.8 yd³ 41.9 m³
Heaped (SAE 2:1)*
55.5 yd³ 42.2 m³
46.76 yd³ 35.75 m³
78.6 yd³ 60.1 m³
Note (1)
Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980 *ISO 6483:1980
* ISO 6483:1980. * ISO 6483:1980.
*ISO 6483:1980 *ISO 6483:1980
Capacity - Flat Floor - 100% Fill Factor
Struck
42.2 yd³ 32.3 m³
34.33 yd³ 26.25 m³
-
Heaped (SAE 2:1)*
55.2 yd³ 42.2 m³
46.41 yd³ 35.49 m³
-
Note (1)
Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
Contact your local Cat dealer for body recommendation. Contact your local Cat dealer for body recommendation.
-
Note (2)
*ISO 6483:1980 *ISO 6483:1980
* ISO 6483:1980. * ISO 6483:1980.
-
Weight Distributions - Approximate
Front Axle - Empty
52 % 52 %
53 % 53 %
42 % 42 %
Front Axle - Loaded
34 % 34 %
35 % 35 %
33 % 33 %
Rear Axle - Empty
48 % 48 %
47 % 47 %
58 % 58 %
Rear Axle - Loaded
66 % 66 %
65 % 65 %
67 % 67 %
Suspension
Empty Loaded Cylinder Stroke Rear
5.8 in 149 mm
5.8 in 149 mm
2.5 in 66 mm
Rear axle - Oscillation
8.1° 8.1°
8.1 ° 8.1 °
5.4 ° 5.4 °
Empty Loaded Cylinder Stroke Front
9.2 in 234 mm
9.2 in 234 mm
2.9 in 74.7 mm
Service Refill Capacities
Fuel Tank (1)
-
-
300 gal (US) 1136 l
Fuel Tank (2)
-
-
350 gal (US) 1325 l
Fuel Tank
210 gal (US) 795 l
210 gal (US) 795 l
-
Cooling System
40.6 gal (US) 154 l
45 gal (US) 171 l
61 gal (US) 231 l
Differential - Final Drives
37 gal (US) 140 l
38 gal (US) 145 l
-
Differentials
-
-
59.9 gal (US) 227 l
Final Drive - Each
-
-
20 gal (US) 76 l
Steering Tank
9.5 gal (US) 36 l
9.5 gal (US) 36 l
-
Steering System - Including Tank
14 gal (US) 54 l
14 gal (US) 54 l
14.1 gal (US) 53.6 l
Torque Converter - Transmission System
-
-
36.5 gal (US) 138.5 l
Torque Converter - Transmission System - LRC
16 gal (US) 61 l
16 gal (US) 61 l
-
Brake Hoist System
85 gal (US) 322 l
85 gal (US) 322 l
117 gal (US) 444 l
Crankcase
24 gal (US) 90 l
24 gal (US) 90 l
28.7 gal (US) 109 l
Torque Converter - Transmission System - HRC
18 gal (US) 70 l
-
-
Brake/Hoist Hydraulic Tank
46.5 gal (US) 176 l
46.5 gal (US) 176 l
-
Tires
Note (1)
Productive capabilities of the 775G 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 775G 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 773G 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 773G 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. 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.
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.
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.
Standard Tire
24.00R35 (E4) 24.00R35 (E4)
24.00R35 (E4) 24.00R35 (E4)
27.00R49 (E4) 27.00R49 (E4)
ROPS
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.
Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
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.
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.
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.
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.
Sound
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.
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.
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 76 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 76 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 76 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 76 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. 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 86 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 86 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 86 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 86 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). 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).
Steering
Turning Diameter - Front
72.2 ft 22 m
77.1 ft 23.5 m
83 ft 25.3 m
Steering Standards
ISO 5010:2007 ISO 5010:2007
SAE J1511 FEB94 ISO 5010:1992 SAE J1511 FEB94 ISO 5010:1992
ISO 5010:2007 ISO 5010:2007
Steer Angle
31 ° 31 °
31 ° 31 °
30.5 ° 30.5 °
Turning Circle - Clearance Diameter
82 ft 25 m
85.8 ft 26.1 m
93 ft 28.4 m
Capacity - X Body - 100% Fill Factor
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
Capacity - Coal Bodies - 100% Fill Factor
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

Price listed is Manufacturer's Suggested Retail Price, this price does not include shipping and handling, expedite charges, taxes, dealer installation costs or other dealer charges. Dealers set actual prices, including invoicing currency. The MSRP displayed is for the region selected.