The Komatsu d66s 1 bulldozer (1991-1998) combines low engine power at 160 hp (119 kW) with below-average weight at 39,441 lb (17.9 t). The listed travel speed is 6.34 mph (10.2 km/h).
Specification profile
1991-1998
Weight: 39,441 lb (17.9 t)Engine power: 160 hp (119 kW)Travel speed: 6.34 mph (10.2 km/h)Engine speed at max torque: 2,100 rpm
39,441 lb (17.9 t)Weight
160 hp (119 kW)Engine power
6.34 mph (10.2 km/h)Travel speed
2,100 rpmEngine speed at max torque
507 lb-ft (687 Nm)Maximum torque
5.91 ft (1.8 m)Transport width
16.1 in (410 mm)Track Width
10.9 ft (3.31 m)Transport height
How it compares
Low, average or high?
Engine power
Low
160 hp (119 kW)
Low 61.7 hp (46 kW)Typical 222 hp (165 kW)High 758 hp (565 kW)
Engine power is well below the typical figure.
Weight
Below average
39,441 lb (17.9 t)
Low 10,097 lb (4.58 t)Typical 52,108 lb (23.6 t)High 165,347 lb (75 t)
Weight is below the typical figure.
Travel speed
Average
6.34 mph (10.2 km/h)
Low 4.04 mph (6.5 km/h)Typical 6.47 mph (10.4 km/h)High 8.7 mph (14 km/h)
Travel speed is close to the typical figure.
Maximum torque
Low
507 lb-ft (687 Nm)
Low 339 lb-ft (460 Nm)Typical 863 lb-ft (1,169 Nm)High 1,988 lb-ft (2,696 Nm)
Maximum torque is well below the typical figure.
Transport width
Low
5.91 ft (1.8 m)
Low 5.87 ft (1.79 m)Typical 9.9 ft (3.02 m)High 15.4 ft (4.69 m)
Transport width is well below the typical figure.
Transport height
Average
10.9 ft (3.31 m)
Low 7.19 ft (2.19 m)Typical 10.8 ft (3.3 m)High 15.1 ft (4.59 m)
Transport height is close to the typical figure.
Visual overview
Key measurements
Overall size
The main published dimensions shown together at a glance.
Equipment
Features & equipment
Published equipment and feature availability for this model.
Air conditioningNO
Diesel particulate filterNO
Rear RipperNO
Tilt DeviceNO
Overview
Model information
| Manufacturer | Komatsu |
|---|---|
| Model | d66s 1 bulldozer |
| Model year / production | 1991-1998 |
Full specifications
Technical details
Performance
Engine power160 hp (119 kW)
Maximum torque507 lb-ft (687 Nm)
Engine speed at max torque2,100 rpm
Soil Pressure0.83 kg/cm²
Travel speed6.34 mph (10.2 km/h)
Dimensions
Track Width16.1 in (410 mm)
Transport height10.9 ft (3.31 m)
Transport length21.7 ft (6.62 m)
Transport width5.91 ft (1.8 m)
Capacity & weight
Weight39,441 lb (17.9 t)
Engine & drivetrain
Cylinder bore × stroke110×125 mm
Displacement1.88 US gal (7.13 L)
Engine manufacturerKomatsu
Engine typeSA6D110-1
Number of cylinders6.0
Features
Air conditioningNo
Diesel particulate filterNo
Other specifications
Model seriesD
Rear RipperNo
Tilt DeviceNo
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