Cat D3 vs Cat D4
The Cat D4 is the heavier machine, at 13.5 t against 9.36 t, and the Cat D4 has more power (95 kW against 77.6 kW).
The Cat D3 is ahead on: digs deeper, narrower to transport. The Cat D4 is ahead on: more power, bigger bucket or body, bigger fuel tank, faster.
Below, every figure both makers publish sits side by side, with the Cat D3 and the Cat D4 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 D3 | Cat D4 |
|---|---|---|
| Operating weight | 9,362 kg | 13,500 kg |
| Net powerHigher is better | 77.6 kW | 95 kW+22% |
| Digging depthHigher is better | 0.605 m+29% | 0.47 m |
| Blade capacityHigher is better | 2.19 m³ | 3.3 m³+51% |
| Fuel tankHigher is better | 195 L | 260 L+33% |
| Travel speed, forward (max)Higher is better | 9 km/h | 10 km/h+11% |
| Width over tracksLower is better | 2.11 m+9% | 2.33 m |
All specifications
Every figure the makers publish. Search for one, or show only those that differ.
Dimensions
Weight
Performance
Engine
Transmission
Undercarriage
Hydraulics
Service capacities
Service intervals
Ripper
Sources: Cat D3 Dozer specifications AEHQ8311-02 (08-2024), build 12B (AME, S Am, APD) · Cat D4 Track-Type Tractor Technical Specifications AEXQ3463 (04-2022), build 15A (Afr-ME, Asia Pacific, Eurasia, S Am)
Drawn to scale
Side views measured off each maker's dimension drawing, front edges and ground lined up.
Cat D3 vs Cat D4: questions
Which is bigger, the Cat D3 or Cat D4?
By operating weight the Cat D4 is the biggest at 13.5 t, then the Cat D3 at 9.36 t.
Which has more power, the Cat D3 or Cat D4?
The Cat D4: Cat D3 77.6 kW (104 hp), Cat D4 95 kW (128 hp) (net power), a 22% difference.
Which digs deeper, the Cat D3 or Cat D4?
The Cat D3: Cat D3 0.605 m, Cat D4 0.47 m (digging depth), a 29% difference.
Which has the bigger bucket, the Cat D3 or Cat D4?
The Cat D4: Cat D3 2.19 m³, Cat D4 3.3 m³ (blade capacity), a 51% difference.
Which has the bigger fuel tank, the Cat D3 or Cat D4?
The Cat D4: Cat D3 195 L, Cat D4 260 L (fuel tank), a 33% difference.
Which is narrower to transport, the Cat D3 or Cat D4?
The Cat D3: Cat D3 2.11 m, Cat D4 2.33 m (width over tracks), a 9% 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.
