Cat D4 vs Cat D6
The Cat D6 is the heavier machine, at 22.1 t against 13.5 t, and the Cat D6 has more power (161 kW against 95 kW).
The Cat D4 is ahead on: narrower to transport. The Cat D6 is ahead on: more power, digs deeper, bigger bucket or body, bigger fuel tank, faster.
Below, every figure both makers publish sits side by side, with the Cat D4 and the Cat D6 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 D4 | Cat D6 |
|---|---|---|
| Operating weight | 13,500 kg | 22,130 kg |
| Net powerHigher is better | 95 kW | 161 kW+69% |
| Digging depthHigher is better | 0.47 m | 0.502 m+7% |
| Blade capacityHigher is better | 3.3 m³ | 5.7 m³+73% |
| Fuel tankHigher is better | 260 L | 341 L+31% |
| Travel speed, forward (max)Higher is better | 10 km/h | 10.7 km/h+7% |
| Width over tracksLower is better | 2.33 m+8% | 2.54 m |
All specifications
Every figure the makers publish. Search for one, or show only those that differ.
Dimensions
Weight
Performance
Engine
Transmission
Undercarriage
Ripper
Service capacities
Service intervals
Hydraulics
Sources: Cat D4 Track-Type Tractor Technical Specifications AEXQ3463 (04-2022), build 15A (Afr-ME, Asia Pacific, Eurasia, S Am) · Cat D6 Track-Type Tractors Technical Specifications AEXQ3981-00 (10-2024), build 20C (Aus-NZ, S Am)
Drawn to scale
Side views measured off each maker's dimension drawing, front edges and ground lined up.
Cat D4 vs Cat D6: questions
Which is bigger, the Cat D4 or Cat D6?
By operating weight the Cat D6 is the biggest at 22.1 t, then the Cat D4 at 13.5 t.
Which has more power, the Cat D4 or Cat D6?
The Cat D6: Cat D4 95 kW (128 hp), Cat D6 161 kW (215 hp) (net power), a 69% difference.
Which digs deeper, the Cat D4 or Cat D6?
The Cat D6: Cat D4 0.47 m, Cat D6 0.502 m (digging depth), a 7% difference.
Which has the bigger bucket, the Cat D4 or Cat D6?
The Cat D6: Cat D4 3.3 m³, Cat D6 5.7 m³ (blade capacity), a 73% difference.
Which has the bigger fuel tank, the Cat D4 or Cat D6?
The Cat D6: Cat D4 260 L, Cat D6 341 L (fuel tank), a 31% difference.
Which is narrower to transport, the Cat D4 or Cat D6?
The Cat D4: Cat D4 2.33 m, Cat D6 2.54 m (width over tracks), a 8% 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.
