Dimensions
| Overall Length | 39.23 ft in (11.96 m) |
| Ground Clearance | 3.29 ft in (1.01 m) |
| Dump Clearance | 3.7 ft in (1.13 m) |
| Engine Guard Clearance | 3.41 ft in (1.04 m) |
| Front Canopy Height | 19.8 ft in (6.04 m) |
| Height – Top Of ROPS | 17.09 ft in (5.21 m) |
| Inside Body Depth – Maximum | 9.15 ft in (2.79 m) |
| Inside Body Length | 27.29 ft in (8.32 m) |
| Inside Body Width | 19.72 ft in (6.02 m) |
| Loading Height – Empty | 17.39 ft in (5.31 m) |
| Operating Width | 24.72 ft in (7.54 m) |
| Outside Body Width | 22 ft in (6.71 m) |
| Overall Body Length | 39.32 ft in (11.99 m) |
| Overall Canopy Width | 24.81 ft in (7.57 m) |
| Overall Height – Body Raised | 39.48 ft in (12.04 m) |
| Overall Tire Width | 20.59 ft in (6.28 m) |
| Rear Axle – Clearance | 3.25 ft in (1 m) |
| Rear Axle – Tail | 12.56 ft in (3.83 m) |
| Rear Sidewall Height | 2.87 ft in (0.88 m) |
| Centerline Front Tire Width | 15.91 ft in (4.85 m) |
| Wheel Base | 17 ft in (5.19 m) |
| Centerline Of Rear Dual Tire Width | 14.06 ft in (4.29 m) |
Body
| Standard Dual Slope Weight | 51892 lb (23538 kg) |
| Standard Dual Slope Volume (Sae 2:1) | 102 yd3 (78 m3) |
| Standard Msd Weight | 46711 lb (21188 kg) |
| Standard Msd Volume (Sae 2:1) | 130 yd3 (99.4 m3) |
| Note | Body weight only. Does not include liners. |
Body Hoists
| Body Raise Time – High Idle | 15.2 s |
| Body Lower Time – Float High Idle | 15.9 s |
| Body Lower Time – Float Low Idle | 16.2 s |
| Body Power Down- High Idle | 15.9 s |
Note: Twin, two-stage hydraulic cylinder mounted outside main frame; double-acting cylinders in second stage. Power raise in both stages; power down in second stage. Automatic body lower modulation reduces impact on frame.
Engine Details
| Number of Cylinders | 12 |
| Engine Make | Caterpillar |
| Engine Model | Cat 3512E HD |
| Displacement | 3574 cu in (58.6 L) |
| Bore | 6.69 in (170 mm) |
| Stroke | 8.46 in (215 mm) |
| Gross Power – SAE J1995 | 1600 hp (1193 kw) |
| Net Power – SAE J1349 | 1509 hp (1125 kw) |
| Power Measured @ | 1650 rpm |
| Torque Rise | 23% |
| Aspiration | Twin Turbocharged – Aftercooled |
| Emission Standards | US EPA Tier 4, IMO II/III, EU Stage V |
Transmission
| Total Final Drive Reduction Ratio | 22.75:1 |
| Reverse | 6.8 mile/h |
| Forward – 1 | 7.5 mph (12.1 km/h) |
| Forward – 2 | 10.2 mph (16.5 km/h) |
| Forward – 3 | 13.8 mph (22.3 km/h) |
| Forward – 4 | 18.6 mph (30 km/h) |
| Forward – 5 | 25.2 mph (40.6 km/h) |
| Forward – 6 | 34 mph (54.8 km/h) |
| Note | Maximum travel speeds with standard 33.00-R51 tires. |
Steering
| Steering Standards | ISO 5010:2007 |
| Steering Angle | 36 degrees |
| Turning Diameter – Iso 7457:1997 (33.00r51 Tires) | 97.8 ft in (29.8 m) |
| Machine Clearance Diameter – Iso 7457:1997 (33.00r51 Tires) | 109 ft in (33.2 m) |
Tires
| Standard Tire Size | 33.00R51 (E3 and E4) |
| Optional Tire Size | 36.00R51 (Michelin, Bridgestone) |
Note: Productive capabilities of the 785G truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production. CAT recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Suspension
| Cylinder Stroke – Front | 12.6 in (320 mm) |
| Cylinder Stroke – Rear | 6.5 in (165 mm) |
Braking System
| Service Brakes | ISO 3450:2011. Oil cooled four corner hydraulic actuated disc brakes. |
| Rear Brake Surface | 13908 in2 (9.0 m2) |
| Front Brake Surface | 9487 in2 (6.2 m2) |
Operating Specs
| Nominal Payload Capacity | 292000 lb (132449 kg) |
| Gross Machine Operating Weight (GMW) (33R51 Tires) | 550000 lb (249476 kg) |
| Nominal Payload Capacity (36.00R51 Tires)* | 296000 lb (134263 kg) |
| Gross Machine Operating Weight (GMW) (36R51 Tires) | 564000 lb (255826 kg) |
| Nominal Payload Capacity (33.00R51 Tires)* | 292000 lb (132449 kg) |
Note: *Includes standard liners and MSD II (Mine Specific Design) body. GMW depends on tire selection. Consult your tire manufacturer for maximum loaded top speed. Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
Weights
| Min Body Weight Range | 46903 lb (21275 kg) |
| Max Body Weight Range | 67512 lb (30623 kg) |
| Operating Chassis Weight (Empty) | 186661 lb (84668 kg) |
Note: Chassis weight includes standard mandatory attachments, 33R51 tires, all operating fluid levels full and 100% fuel. Estimated weight of debris is not included in operating chassis weight. Body weight varies depending on body selection and configuration.
Weight Distributions
| Front Axle – Empty | 48% |
| Rear Axle – Empty | 52% |
| Front Axle – Loaded – Target | 33% |
| Rear Axle – Loaded – Target | 67% |
ROPS
| ROPS Standards | ROPS for cab offered by CAT meets ISO 3471:2008 ROPS and ISO 13459:2012 criteria |
| FOPS Standards | FOPS meets ISO 3449:2005 and ISO 13459:2012 Level II criteria |
Sound
| Cooling Fan Drive – Direct Drive – Operator Sound Level (Iso 6396:2008) | 77 dB(A) |
| Cooling Fan Drive – Direct Drive – Machine Sound Level (Iso 6395:2008) | 121 dB(A) |
| Cooling Fan Drive – Optional Clutch – Operator Sound Level (Iso 6396:2008) | 75 dB(A) |
| Cooling Fan Drive – Optional Clutch – Machine Sound Level (Iso 6395:2008) | 120 dB(A) |
Note: Testing done per specified standard work cycle procedures and conditions with 50% HVAC blower fan speed. Optional clutch control fan measurement done at 70% of maximum engine cooling fan speed. Hearing protection may be needed when operating with an open operator station/cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Service Refill Capacities
| Fuel Tank Capacity | 410 gal (1552.1 L) |
| Def Tank Capacity | 36 gal (136.3 L) |
| Engine Oil Capacity | 54 gal (204.5 L) |
| Cooling System Capacity | 100 gal (378.6 L) |
| Transmission / Torque Converter (w/ Sump) | 46 gal (174.2 L) |
| Brake Hoist System (w/ Tank) | 160 gal (605.7 L) |
| Differential – Final Drives | 139 gal (526.2 L) |
| Brake/Hydraulic Tank Capacity | 135 gal (511.1 L) |
| Steering System (w/ Tank) Capacity | 45 gal (170.4 L) |
| Steering Tank Capacity | 29 gal (109.8 L) |
Separate steering system and separate torque converter/transmission system prevents cross contamination. Contact your local Cat dealer for DEF infrastructure recommendations.
