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Cat 740 vs Cat 745

The Cat 745 is the heavier machine, at 33.1 t against 32.6 t, and the Cat 745 has more power (370 kW against 324 kW).

The Cat 740 is ahead on: faster, turns tighter, lower to transport. The Cat 745 is ahead on: more power, more torque, dumps higher, bigger bucket or body, lifts or carries more.

Below, every figure both makers publish sits side by side, with the Cat 740 and the Cat 745 drawn to the same scale from their dimension drawings.

  1. Cat · articulated dump truck

    Cat 740

    Full specsPDF

  2. Cat · articulated dump truck

    Cat 745

    Full specsPDF

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At a glance

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

FigureCat 740Cat 745
Operating weight32,560 kg33,110 kg
Gross powerHigher is better335 kW381 kW+14%
Max torqueHigher is better2,320 Nm2,618 Nm+13%
Dump height (body raised)Higher is better6.685 m7.288 m+9%
Body capacity (SAE 2:1 heaped)Higher is better22.7 m³25.5 m³+12%
Payload (nominal)Higher is better36.3 t41 t+13%
Top speedHigher is better57.5 km/h+5%54.8 km/h
SAE turning radiusLower is better7.698 m+11%8.625 m
Overall height (cab)Lower is better3.757 m3.762 m
Overall length11.065 m11.432 m

All specifications

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

Dimensions

Overall length11.065 m11.432 m
Overall length with tailgate11.185 m11.559 m
Overall width3.801 m3.801 m
Overall height (cab)3.757 m3.762 m
Loading height3.243 m3.261 m
Dump height (body raised)6.685 m7.288 m
Ground clearance0.588 m0.59 m
Ground clearance, body fully tipped0.684 m0.779 m
Front axle to machine front3.418 m3.418 m
Front axle to mid axle4.126 m4.59 m
Tandem axle spacing1.966 m1.966 m
Rear axle to body rear1.542 m1.458 m
Body length5.889 m6.402 m
Body length, inside5.437 m5.929 m
Width over tailgate3.647 m3.774 m
Body width3.422 m3.422 m
Track width2.687 m2.687 m
Width over tyres3.37 mNot published
Width over fenders3.5 m3.37 m
Max laden width over tyre bulgeNot published3.5 m

Weight

Operating weight32,560 kgTotal, empty33,110 kgTotal, empty
Payload (nominal)36.3 tRated payload41 tRated payload
Gross machine weight (loaded)68,860 kgTotal, loaded74,110 kgTotal, loaded
Front axle load, empty19,095 kg19,180 kg
Centre axle load, empty6,785 kg7,100 kg
Rear axle load, empty6,680 kg6,830 kg
Front axle load, loaded22,271 kg25,060 kg
Centre axle load, loaded23,347 kg24,660 kg
Rear axle load, loaded23,242 kg24,390 kg

Body

Body capacity (SAE 2:1 heaped)22.7 m³25.5 m³
Body capacity (struck)17.7 m³19.9 m³
Body capacity with tailgate (SAE 2:1 heaped)24.4 m³27.3 m³
Body capacity with tailgate (struck)17.9 m³20.9 m³
Body plateHigh strength Brinell HB450 wear resistant steelHigh strength Brinell HB450 wear resistant steel
Body plate thickness, front7 mm7 mm
Body plate thickness, base13 mm14 mm
Body plate thickness, sides11 mm11 mm
Body raise time12 s12 s manual, 13 s automatic
Body lower time12 s10 s
Body plate thickness, chuteNot published14 mm

Engine

Engine modelCat C15Cat C18
EmissionsBrazil MAR-1 (equivalent to U.S. EPA Tier 3 / EU Stage IIIA) or non-certified (equivalent to Tier 2 / Stage II)Two engine optionsBrazil MAR-1 (equivalent to U.S. EPA Tier 3 / EU Stage IIIA) or non-certified (equivalent to Tier 2 / Stage II)Two engine options
Gross power335 kW (449 hp)SAE J1995, at 1,700 rpm381 kW (511 hp)SAE J1995, at 1,700 rpm
Net power324 kW (434 hp)SAE J1349370 kW (496 hp)SAE J1349
Engine power330 kW (443 hp)ISO 14396376 kW (504 hp)ISO 14396
Max torque2,320 NmGross, SAE J1995:2014, at 1,200 rpm2,618 NmGross, SAE J1995:2014, at 1,200 rpm
Max torque (net)2,264 NmSAE J1349:2011, at 1,200 rpm2,558 NmSAE J1349:2011, at 1,200 rpm
Displacement15.2 L18.1 L
Bore x stroke137 mm x 171.5 mm145 mm x 183 mm
No engine derating below3,050 mAltitude3,050 mAltitude

Transmission

TransmissionCat CX38 auto shift, 9F/2RCat CX38 auto shift, 9F/2R
Top speed57.5 km/hForward 954.8 km/hForward 9
Reverse speed15.7 km/hReverse 214.6 km/hReverse 2

Steering

Steering angle45°Left/right from centre45°Left/right from centre
SAE turning radius7.698 m8.625 m
Clearance radius8.395 m9.082 m
Inside radius3.96 m4.413 m
Aisle width5.595 m5.917 m
Lock to lock time4.75 s at 60 rpm4.8 s at 60 rpm

Tyres

TyresSix 29.5 R25Turning dimensions are for 29.5 R25Six 29.5 R25Turning dimensions are for 29.5 R25

Service capacities

Fuel tank550 L550 L
Cooling system90 L90 L
Brake cooling tank67 L67 L
Hydraulic system, with tank140 LSteering/hoist hydraulic system140 LSteering/hoist hydraulic system
Engine oil, with filter52 LEngine crankcase52 LEngine crankcase
Transmission/output transfer gear75 L75 L
Final drives (each)5 L5 L
Axles (each)60 L60 L

Service intervals

Engine oil and filter500 hours500 hours
Fuel filters500 hoursprimary and secondary500 hoursprimary and secondary
Transmission oil filter500 hours500 hours
Transmission oil1,000 hoursincludes the output transfer gear1,000 hoursincludes the output transfer gear
Differential and final drive oil2,000 hoursfront, centre and rear axles2,000 hoursfront, centre and rear axles
Brake system oil2,000 hours2,000 hours
Hydraulic oil4,000 hours4,000 hours
Coolant12,000 hours12,000 hours

Sources: Cat 740 GC Articulated Truck Technical Specifications AEXQ2606-03 (07-2025), Afr-ME / Aus-NZ / Eurasia / Indonesia / Pacific Islands / S Am - linked from Al-Bahar · Cat 745 Articulated Truck Technical Specifications AEXQ3088-03 (06-2025), Afr-ME / Aus-NZ / Eurasia / S Am / Pacific Islands

Drawn to scale

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

0 m1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m11 m
Cat 740Cat 745Same scale, front edges and ground lined up.

Cat 740 vs Cat 745: questions

Which is bigger, the Cat 740 or Cat 745?

By operating weight the Cat 745 is the biggest at 33.1 t, then the Cat 740 at 32.6 t.

Which has more power, the Cat 740 or Cat 745?

The Cat 745: Cat 740 335 kW (449 hp), Cat 745 381 kW (511 hp) (gross power), a 14% difference.

Which has the bigger bucket, the Cat 740 or Cat 745?

The Cat 745: Cat 740 22.7 m³, Cat 745 25.5 m³ (body capacity (sae 2:1 heaped)), a 12% difference.

Which lifts or carries more, the Cat 740 or Cat 745?

The Cat 745: Cat 740 36.3 t, Cat 745 41 t (payload (nominal)), a 13% difference.

Which turns tighter, the Cat 740 or Cat 745?

The Cat 740: Cat 740 7.698 m, Cat 745 8.625 m (sae turning radius), a 11% 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.

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