- Length W/ Blade: 11.04 ft / 3365 mm
- Width Over Tracks: 4.33 ft / 1310 mm
- Height To Top Of Cab: 8.04 ft / 2450 mm
- Standard Shoe Size: 11.8 in / 300 mm
Published dimensions and weight
Komatsu D21A-8
Weighing roughly 3.9 t and rated at 40 hp, the Komatsu D21A-8 is a crawler tractor in its size class.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight8690 lb3940 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-8 include published operating weight of 8690 lb / 3940 kg, published engine power of 43.1 hp / 32.2 kw, the published “Length W/ Blade” field of 11.04 ft / 3365 mm. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Length W/ Blade” field (11.04 ft / 3365 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tracks” field (4.33 ft / 1310 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Height To Top Of Cab” field (8.04 ft / 2450 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/ Blade11.04 ft3365 mm
Width Over Tracks4.33 ft1310 mm
Height To Top Of Cab8.04 ft2450 mm
Undercarriage
Standard Shoe Size11.8 in300 mm
Ground Pressure4.77 psi32.9 kPa
Number Of Shoes Per Side3737
Number Of Track Rollers Per Side55
Ground Contact Area1570 in21.01 m2
Engine
Number Of Cylinders44
Engine Make22382238
Engine Model4D94LE-24D94LE-2
Gross Power43.1 hp32.2 kw
Net Power40 hp29.5 kw
Displacement186 cu in3.1 L
Aspirationnaturally aspiratednaturally aspirated
Operational
Operating Weight8690 lb3940 kg
Fuel Capacity15.9 gal60 L
Cooling System Fluid Capacity2.6 gal10 L
Engine Oil Capacity1.7 gal6.6 L
Hydraulic Fluid Capacity5.5 gal21 L
Final Drives Fluid Capacity1.6 gal6 L
Transmission
Transmission TypeKomatsu HYDROSHIFT transmissionKomatsu HYDROSHIFT transmission
Number Of Forward Gears22
Number Of Reverse Gears22
Max Speed - Forward2.7 mph4.4 km/h
Max Speed - Reverse3.5 mph5.6 km/h
Standard Blade
Width7.1 ft2170 mm
Height2.7 ft820 mm
Blade Angle (Both Directions)25 degrees25 degrees
Cutting Depth14 in355 mm
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Manufacturer-published specifications.