- Home/
- Comparison/
- Tracked Tractor/
- Komatsu D31PLL-17 vs. Komatsu D21P-7E
Komatsu D31PLL-17 vs. Komatsu D21P-7E
5 reasons to buy Komatsu D31PLL-17:
Sizes
Clearance | 380 mm and 355 mm | 7 % more or 25 mm |
Motor
Full power | 50.7 kW and 29.8 kW | 41 % more or 20.9 kW |
Displacement | 4.3 l. and 2.8 l. | 35 % more or 1.5 l. |
Gear box
Forward gears number | 3 and 2 | 33 % more or 1 |
Reverse gears number | 3 and 2 | 33 % more or 1 |
1 reasons to buy Komatsu D21P-7E:
Motor
Power measured at | 2450 rev / min and 2350 rev / min | 4 % more or 100 rev |
Neutral reasons:
Standard blade
Height | 545 mm and 590 mm |
Width | 3425 mm and 2560 mm |
Sizes
Length with blade | 4245 mm and 3385 mm |
Width between caterpillar tracks | 2950 mm and 2000 mm |
Height to cab upper part | 2705 mm and 2500 mm |
Caterpillar track length on ground level | 2570 mm and 1685 mm |
Operation
Working weight | 7550 kg and 4070 kg |
Motor
Model | 4D105-5 and 4D94E |
Cylinders number | 4 and 4 |
Manufacturer | Komatsu and Komatsu |
Gear box
Transmission type | HS and HS |
Carrier
Standard shoe size | 1050 mm and 510 mm |
Track width | 1900 mm and 1490 mm |
Images
Sizes
3. Height to cab upper part | 2705 mm | 3. Height to cab upper part | 2500 mm |
4. Caterpillar track length on ground level | 2570 mm | 4. Caterpillar track length on ground level | 1685 mm |
5. Clearance | 380 mm | 5. Clearance | 355 mm |
1. Length with blade | 4245 mm | 1. Length with blade | 3385 mm |
2. Width between caterpillar tracks | 2950 mm | 2. Width between caterpillar tracks | 2000 mm |
Carrier
7. Track width | 1900 mm | 7. Track width | 1490 mm |
8. Standard shoe size | 1050 mm | 8. Standard shoe size | 510 mm |


