- Length W/ Blade: 11.32 ft / 3450 mm
- Width Over Tracks: 5.06 ft / 1540 mm
- Height To Top Of Cab: 6.85 ft / 2085 mm
- Length Of Track On Ground: 5.5 ft / 1675 mm
Published dimensions and weight
Komatsu D21A-3
The Komatsu D21A-3 is a 3.4 t-class crawler tractor with a 37 hp engine.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight7561.9 lb3430 kg
03Selected published values30
Crawler tractors are commonly used for pushing, grading and clearing material where tracked traction is useful. Published rows for Komatsu D21A-3 include published operating weight of 7561.9 lb / 3430 kg, published engine power of 37 hp / 27.6 kw, the published “Length W/ Blade” field of 11.32 ft / 3450 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Length W/ Blade” field (11.32 ft / 3450 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tracks” field (5.06 ft / 1540 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Height To Top Of Cab” field (6.85 ft / 2085 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Length W/ Blade11.32 ft3450 mm
Width Over Tracks5.06 ft1540 mm
Height To Top Of Cab6.85 ft2085 mm
Length Of Track On Ground5.5 ft1675 mm
Ground Clearance1.02 ft310 mm
Length W/O Blade8.09 ft2465 mm
Undercarriage
Track Gauge3.91 ft1190 mm
Standard Shoe Size11.82 in300 mm
Number Of Track Rollers Per Side55
Number Of Shoes Per Side3737
Ground Pressure4.12 psi28.41 kPa
Track Pitch5.32 in135 mm
Engine
Number Of Cylinders44
Engine Make22382238
Engine Model4D92-14D92-1
Gross Power37 hp27.6 kw
Power Measured @2450 rpm2450 rpm
Displacement159 cu in2.7 L
Operational
Operating Weight7561.9 lb3430 kg
Fuel Capacity15.9 gal60 L
Cooling System Fluid Capacity3.7 gal14 L
Transmission
Transmission TypeHSHS
Number Of Forward Gears33
Number Of Reverse Gears33
Max Speed - Forward4.3 mph6.9 km/h
Max Speed - Reverse4 mph6.4 km/h
Standard Blade
Width7.6 ft2300 mm
Height22.3 in565 mm
Capacity1 yd30.8 m3
Cutting Depth12.6 in320 mm
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Manufacturer-published specifications.