- Overall Length: 22.76 ft / 6935 mm
- Width Over Tires: 6.89 ft / 2100 mm
- Wheelbase: 16.41 ft / 5000 mm
- Tandem Axle Wheelbase: 4.38 ft / 1335 mm
Published dimensions and weight
Komatsu GD305A-3
Rated at 100 hp, the Komatsu GD305A-3 is a motor grader.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale

01Dimensions referenceLength × width × height
02Std Operation Weight - Total17592.9 lb7980 kg
03Selected published values24
Motor graders are commonly used to shape, level and maintain roads, pads and drainage surfaces. Published rows for Komatsu GD305A-3 include published moldboard width of 10.4 ft / 3150 mm, published maximum power of 100 hp / 74.6 kw, published operating weight of 17592.9 lb / 7980 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (22.76 ft / 6935 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tires” field (6.89 ft / 2100 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Wheelbase” field (16.41 ft / 5000 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
Overall Length22.76 ft6935 mm
Width Over Tires6.89 ft2100 mm
Wheelbase16.41 ft5000 mm
Tandem Axle Wheelbase4.38 ft1335 mm
Blade Base6.94 ft2115 mm
Height To Top Of Isomount Cab8.01 ft2440 mm
Engine
Number Of Cylinders44
Net Power Gear 4-6100 hp74.6 kw
Engine Make22382238
Engine ModelS4D102ES4D102E
Power Measured @2500 rpm2500 rpm
Max Power100 hp74.6 kw
Displacement239.3 cu in4 L
Operational
Std Operation Weight - Total17592.9 lb7980 kg
Fuel Capacity34.4 gal130 L
Tire Sizefront 9.00-20-8PR rear 10.00-20-10PRfront 9.00-20-8PR rear 10.00-20-10PR
Steering
Articulation Angle27 degrees27 degrees
Turning Radius18.7 ft5.7 m
Transmission
Number Of Gears - Forward44
Number Of Gears - Reverse11
Max Speed - Forward21.5 mph34.5 km/h
Max Speed - Reverse15.3 mph24.6 km/h
Moldboard
Moldboard Width10.4 ft3150 mm
Moldboard Height20.9 in530 mm
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Manufacturer-published specifications.