Cat 730 vs Cat 745
The Cat 745 is the heavier machine, at 33.1 t against 23.3 t, and the Cat 745 has more power (370 kW against 274 kW).
The Cat 730 is ahead on: faster, turns tighter, narrower to transport, lower to transport. The Cat 745 is ahead on: more power, more torque, dumps higher, bigger bucket or body, lifts or carries more, bigger fuel tank.
Below, every figure both makers publish sits side by side, with the Cat 730 and the Cat 745 drawn to the same scale from their dimension drawings.
At a glance
Bold is the machine ahead on each figure, with its lead.
| Figure | Cat 730 | Cat 745 |
|---|---|---|
| Operating weight | 23,300 kg | 33,110 kg |
| Gross powerHigher is better | 280 kW | 381 kW+36% |
| Max torqueHigher is better | 2,141 Nm | 2,618 Nm+22% |
| Dump height (body raised)Higher is better | 6.46 m | 7.288 m+13% |
| Body capacity (SAE 2:1 heaped)Higher is better | 17.6 m³ | 25.5 m³+45% |
| Payload (nominal)Higher is better | 28 t | 41 t+46% |
| Fuel tankHigher is better | 400 L | 550 L+38% |
| Top speedHigher is better | 55 km/h | 54.8 km/h |
| SAE turning radiusLower is better | 7.47 m+13% | 8.625 m |
| Overall widthLower is better | 3.676 m+3% | 3.801 m |
| Overall height (cab)Lower is better | 3.498 m+7% | 3.762 m |
| Overall length | 10.445 m | 11.432 m |
All specifications
Every figure the makers publish. Search for one, or show only those that differ.
Dimensions
Weight
Body
Engine
Transmission
Steering
Tyres
Service capacities
Service intervals
Sources: Cat 730 (05A) Articulated Truck Technical Specifications AEXQ3916 (12-2025), Afr-ME / Aus-NZ / Eurasia / Indonesia / Pacific Islands / S Am · 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.
Cat 730 vs Cat 745: questions
Which is bigger, the Cat 730 or Cat 745?
By operating weight the Cat 745 is the biggest at 33.1 t, then the Cat 730 at 23.3 t.
Which has more power, the Cat 730 or Cat 745?
The Cat 745: Cat 730 280 kW (375 hp), Cat 745 381 kW (511 hp) (gross power), a 36% difference.
Which has the bigger bucket, the Cat 730 or Cat 745?
The Cat 745: Cat 730 17.6 m³, Cat 745 25.5 m³ (body capacity (sae 2:1 heaped)), a 45% difference.
Which lifts or carries more, the Cat 730 or Cat 745?
The Cat 745: Cat 730 28 t, Cat 745 41 t (payload (nominal)), a 46% difference.
Which has the bigger fuel tank, the Cat 730 or Cat 745?
The Cat 745: Cat 730 400 L, Cat 745 550 L (fuel tank), a 38% difference.
Which turns tighter, the Cat 730 or Cat 745?
The Cat 730: Cat 730 7.47 m, Cat 745 8.625 m (sae turning radius), a 13% difference.
Which is narrower to transport, the Cat 730 or Cat 745?
The Cat 730: Cat 730 3.676 m, Cat 745 3.801 m (overall width), a 3% 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.
