Nominal Payload Class (100%)42.1 ton (US) (38.2 t)
Engine ModelCat® C15 ACERT™
Top Speed - Loaded45.8 mile/h (73.7 km/h)
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 770G 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.


-Nominal Payload Class (100%)42.1 ton (US) (38.2 t)
-Engine ModelCat® C15 ACERT™
-Top Speed - Loaded45.8 mile/h (73.7 km/h)
-Rated Engine Speed1700 r/min (1700 r/min)
-Gross Power - SAE J1995515 HP (384 kW)
-Net Power - SAE J1349477 HP (356 kW)
-Net Power - ISO 9249477 HP (356 kW)
-Net Power - 80/1269/EEC489 HP (365 kW)
-Net Power - ISO 14396508 HP (379 kW)
-Net Torque - SAE J13491834 ft·lbf (2486 N·m)
-Number of Cylinders6
-Bore5.4 in (137 mm)
-Stroke6.7 in (171 mm)
-Displacement927.6 in² (15.2 l)
-Note (1)Power rating applies at 1,700 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).
-Note (3)No engine derating required up to 3000 m (9,843 ft) altitude.
-Note (4)Meets U.S. Environmental Protection Agency Tier 4 and European Union Stage IV emission standards.
-Target Gross Machine Operating Weight157000 lb (71214 kg)
-Target Gross Machine Weight157000 lb (71214 kg)
-Chassis Weight55948 lb (25378 kg)
-Body Weight17306 lb (7850 kg)
-Note (1)Chassis weight with 100% fuel, hoist, body mounting group, rims and tires.
-Note (2)Body weight is the standard dual slope body with no liner and will vary depending on configuration.
-Target Payload Capacity42.1 ton (US) (38.2 t)
-Maximum Payload Class (110%)46.3 ton (US) (42 t)
-Not to Exceed Payload (120%)50.5 ton (US) (50.4 t)
-Body Capacity - SAE 2:132.9 yd² (25.2 m²)
-Note (1)Refer to the Caterpillar 10/10/20 Overload Policy for maximum gross machine weight limitations.
-Note (2)Capacity with dual slope body with no liner.
-Forward - 17.4 mile/h (11.9 km/h)
-Forward - 210.1 mile/h (16.3 km/h)
-Forward - 313.8 mile/h (22.2 km/h)
-Forward - 418.5 mile/h (29.8 km/h)
-Forward - 525.1 mile/h (40.4 km/h)
-Forward - 633.8 mile/h (54.4 km/h)
-Forward - 745.8 mile/h (73.7 km/h)
-Reverse8.8 mile/h (14.2 km/h)
-NoteMaximum travel speeds with standard 18.00R33 (E4) tires.
-Differential Ratio1.92:1
-Planetary Ratio4.80:1
-Total Reduction Ratio9.26:1
-Brake Surface - Front216 in² (1395 cm²)
-Brake Surface - Rear6235 in² (40225 cm²)
-Brake StandardsISO 3450:1996
-NoteTarget gross machine operating weight is 71 214 kg (157,000 lb).
-Pump Flow - High Idle118 gal/min (448 l/min)
-Relief Valve Setting - Raise2750 psi (18950 kPa)
-Relief Valve Setting - Lower500 psi (3450 kPa)
-Body Raise Time - High Idle7.5 s (7.5 s)
-Body Lower Time - Float10 s (10 s)
-Body Power Down - High Idle10 s (10 s)
-Struck23.01 yd² (17.6 m²)
-Heaped 2:1 (SAE)32.9 yd² (25.2 m²)
-Struck23.01 yd² (17.6 m²)
-Heaped 2:1 (SAE)32.9 yd² (25.2 m²)
-Front Axle - Empty49 % (49 %)
-Front Axle - Loaded34 % (34 %)
-Rear Axle - Empty51 % (51 %)
-Rear Axle - Loaded66 % (66 %)
-Empty Loaded Cylinder Stroke Front9.2 in (234 mm)
-Empty Loaded Cylinder Stroke Rear5.9 in (149 mm)
-Rear axle - Oscillation8.9 ° (8.9 °)
-Fuel Tank140 gal (US) (530 l)
-Cooling System33 gal (US) (125 l)
-Crankcase17 gal (US) (64 l)
-Differential - Final Drives47 gal (US) (180 l)
-Steering Tank14.5 gal (US) (55 l)
-Steering System - Including Tank23 gal (US) (87 l)
-Brake/Hoist Hydraulic Tank38 gal (US) (145 l)
-Brake Hoist System60 gal (US) (227 l)
-Torque Converter - Transmission System17 gal (US) (64 l)
-DEF Tank6 gal (US) (21 l)
-Steering StandardsISO 5010:2007
-Steer Angle40.5 ° (40.5 °)
-Turning Diameter - Front57.7 ft (17.6 m)
-Turning Circle - Clearance Diameter66.6 ft (20.3 m)
-NoteTarget gross machine operating weight is 71 214 kg (157,000 lb).
-Standard Tire18.00R33 (E4)
-Note (1)Productive capabilities of the 770G 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 evaluates all job conditions and consults the tire manufacturer for proper tire selection.
-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.
-Sound Standards (2)Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A).
-Sound Standards (3)Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used.
-Height - Top of ROPS12.7 ft (3857 mm)
-Overall Body Length26.8 ft (8199 mm)
-Inside Body Length18.5 ft (5635 mm)
-Overall Length28.9 ft (8796 mm)
-Wheel Base13 ft (3960 mm)
-Rear Axle - Tail8.5 ft (2586 mm)
-Ground Clearance1.6 ft (518 mm)
-Dump Clearance1.7 ft (506 mm)
-Loading Height - Empty10.3 ft (3147 mm)
-Inside Body Depth - Maximum4.6 ft (1404 mm)
-Overall Height - Body Raised27.1 ft (8255 mm)
-Operating Width15.7 ft (4780 mm)
-Centerline Front Tire Width10.2 ft (3110 mm)
-Engine Guard Clearance1.8 ft (335 mm)
-Outside Body Width12.9 ft (3931 mm)
-Inside Body Width11.9 ft (3627 mm)
-Front Canopy Height13.5 ft (4114 mm)
-Rear Axle - Clearance1.8 ft (548 mm)
-Centerline of Rear Dual Tire Width8.3 ft (2536 mm)
-Overall Tire Width12.1 ft (3693 mm)

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