Cat 785 vs Cat 797F

The Cat 785 is ahead on: narrower to transport, lower to transport. The Cat 797F is ahead on: more power, dumps higher, lifts or carries more, bigger fuel tank, faster.

Below, every figure both makers publish sits side by side, with the Cat 785 and the Cat 797F drawn to the same scale from their dimension drawings.

Cat · rigid dump truck
Cat 785
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Cat · rigid dump truck
Cat 797F
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At a glance

Bold is the machine ahead on each figure, with its lead.

Figure	Cat 785	Cat 797F
Gross powerHigher is better	1,193 kW	2,983 kW+150%
Dump height (body raised)Higher is better	12.032 m	15.701 m+30%
Payload (nominal)Higher is better	143 t	363 t+154%
Fuel tankHigher is better	1,552 L	3,785 L+144%
Top speedHigher is better	57.2 km/h	67.6 km/h+18%
Overall widthLower is better	7.562 m+17%	9.116 m
Overall height (canopy)Lower is better	6.035 m+22%	7.709 m
Overall length	11.957 m	15.08 m

All specifications

Every figure the makers publish. Search for one, or show only those that differ.

Differences only(55)

FigureCat 785 Cat 797F

Dimensions

Overall length11.957 m15.08 m

Overall width7.562 mOverall canopy width9.116 m

Overall height (canopy)6.035 mFront canopy height7.709 mFront canopy height, empty

Wheelbase5.18 m7.195 m

Loading height (empty)5.299 m6.998 m

Dump height (body raised)12.032 m15.701 m

Ground clearance1.004 m0.786 m

Height to top of ROPS5.208 m6.526 mEmpty

Overall body length11.985 m14.802 m

Inside body length8.318 m9.976 m

Rear axle to tail3.829 m3.944 m

Dump clearance1.128 m2.017 m

Rear sidewall height0.874 mNot published

Inside body depth (maximum)2.79 m3.363 m

Operating width7.535 mNot published

Centre line front tyre width4.85 m6.534 m

Engine guard clearance1.038 m1.025 m

Outside body width6.714 m9.755 m

Inside body width6.01 m8.513 m

Rear axle clearance0.99 m0.947 m

Centre line rear dual tyre width4.285 m6.233 m

Overall tyre width6.277 mOver rear duals9.529 mOver rear duals

Weight

Payload (nominal)143 t363 tNominal payload capacity

Gross machine operating weight249,476 kg623,690 kgTarget gross machine operating weight

Chassis weight85,156 kg33.00 R51 tyres; with full fuel and fluids210 630 - 219 146 kg

Body weight20,927 kgUnlined HP body41 368 - 61 235 kgDepends on body and liner

Weight distribution, empty (front/rear)48% / 52%47.2% / 52.8%

Weight distribution, loaded (front/rear)33% / 67%33.3% / 66.7%

Body

Body capacity (SAE 2:1 heaped)110 m³HP body, 100% fill factor240-267 m³MSD II body, 100% fill factor

Body capacity (struck)84 m³HP body188-213 m³MSD II body

Hoist pump flow847 L/minHigh idle1,200 L/minHigh idle

Body raise time15.0 sHigh idle; lower (float) 15.6 s25 sHigh idle; lower (float) 19 s

Engine

Engine modelCat 3512ECat C175-20

EmissionsFuel optimized; U.S. EPA Tier 4 Final / EU Stage V available for applicable marketsCompliant with current U.S. EPA standards where applicable

Gross power1,193 kW (1,600 hp)SAE J1995:2014, at 1,650 rpm2,983 kW (4,000 hp)SAE J1995, at 1,750 rpm

Net power1,125 kW (1,509 hp)SAE J1349:20112,828 kW (3,793 hp)SAE J1349, at 1,750 rpm

Displacement58.6 L106 L

Bore x stroke170 mm x 215 mm175 mm x 220 mm

Performance

Top speed57.2 km/hLoaded, 6th gear, 33.00 R51 tyres67.6 km/hLoaded, 7th gear

Turning diameter29.4 mISO 7457:199742 mMachine clearance turning diameter

Steering angle25°40°

Transmission

Transmission6F/1R7F/1R

Total reduction ratio22.75:1Planetary 10.83:121.26:1Differential 1.276:1, planetary 16.67:1

Tyres

Tyres33.00 R51 (standard for the published speeds); 36.00 R51 optional59/80R63 (Michelin or Bridgestone)

Service capacities

Fuel tank1,552 L3,785 L

DEF tank136 LNot published

Cooling system476 L1,160 L

Engine oil, with filter204 LCrankcase319 LCrankcase

Differential and final drives527 LNot published

Steering system, with tank117 L355 L

Brake/hoist system, with tank541 L1,600 L

Torque converter/transmission system175 LIncludes sump629 LIncludes sump

DifferentialsNot published1,176 L

Final drives (each)Not published185 L

Service intervals

Hydraulic filters1,000 hoursNot published

Coolant12,000 hours12,000 hours

Sources: Cat 785 Mining Truck Technical Specifications AEXQ3668-03 (05-2025), global · Cat 797F Mining Truck specifications AEHQ5884-09 (12-2023), Zeppelin (Cat dealer) copy

Drawn to scale

Side views measured off each maker's dimension drawing, front edges and ground lined up.

Cat 785Cat 797FSame scale, front edges and ground lined up.

Cat 785 vs Cat 797F: questions

Which has more power, the Cat 785 or Cat 797F?

The Cat 797F: Cat 785 1,193 kW (1,600 hp), Cat 797F 2,983 kW (4,000 hp) (gross power), a 150% difference.

Which lifts or carries more, the Cat 785 or Cat 797F?

The Cat 797F: Cat 785 143 t, Cat 797F 363 t (payload (nominal)), a 154% difference.

Which has the bigger fuel tank, the Cat 785 or Cat 797F?

The Cat 797F: Cat 785 1,552 L, Cat 797F 3,785 L (fuel tank), a 144% difference.

Which is narrower to transport, the Cat 785 or Cat 797F?

The Cat 785: Cat 785 7.562 m, Cat 797F 9.116 m (overall width), a 17% difference.

Where do these figures come from?

Each model's own published spec sheet or brochure, linked under the table. Builds differ by market and year, so confirm the figures for a particular machine with its dealer.

Can I rent or buy these machines in the UAE?

Each model's page lists the ones for hire and for sale on EquipmentsFinder now, with typical prices in AED.