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Komatsu GD705R-2 specifications

Entries in this reference
Listing-entry count
1
Short answer

The Komatsu GD705R-2 is an 180-horsepower motor grader, and Komatsu lists one version of it. Listed weight is 38,581 lb.

GD705R-2 specification matrix — Dimensions and weight
SpecificationGD705R-2
Overall Length8.54 ft
Width Over Tires8.04 ft
Wheelbase20.18 ft
Rear Ground Clearance1.43 ft
Tandem Axle Wheelbase5.01 ft
Front Ground Clearance1.89 ft
Blade Base9.06 ft
Height To Top Of Isomount Cab11.27 ft
Engine
SpecificationGD705R-2
Net Power Gear 4-6180 hp
Engine ModelHN-220-CI
Max Power180 hp
Net Torque Gears 3-4579 lb-ft
Displacement743 cu in
Operational
SpecificationGD705R-2
Std Operation Weight - Front Axle12,434 lb
Std Operation Weight - Rear Axle26,147 lb
Std Operation Weight - Total38,581 lb
Tire Size14.00-24-12PR
Steering
SpecificationGD705R-2
Turning Radius37.8 ft
Transmission and speeds
SpecificationGD705R-2
Transmission TypeTORQFLOW
Number Of Gears - Forward4
Number Of Gears - Reverse4
Max Speed - Forward27.4 mph
Max Speed - Reverse27.4 mph
Front Axle
SpecificationGD705R-2
Wheel Lean20 degrees
Oscillation - Total26 degrees
Ground Clearance1.9 ft
Moldboard
SpecificationGD705R-2
Moldboard Width14.2 ft
Moldboard Height27.6 in
Moldboard Thickness0.8 in
Max Depth Of Cut26.8 in
Circle
SpecificationGD705R-2
Max Reach Outside Tires - Left92.2 in
Max Reach Outside Tires - Right92.4 in
Max Lift Above Ground16.6 in
Ratios
FigureGD705R-2
Engine horsepower per 1,000 lb of weight4.7
Reference directory classification
Equipment groupmotor grader

Komatsu's listing for the GD705R-2 matches a motor grader; see the motor graders page.

Where the GD705R-2 ranks in Komatsu's list — Scope of the captured comparison
BrandEquipment groupCompared entrySort order
Komatsumotor graderGD705R-2Descending quantity; 1 is largest
FigureGD705R-2RankLowest in lineHighest in line
Engine power180.0 hp4 of 1065.0 hp280.0 hp
Listed weight38,581 lb4 of 1011,244 lb58,092 lb
Horsepower per 1,000 lb4.7 hp10 of 104.7 hp5.8 hp
Moldboard width14.2 ft2 (tied) of 107.3 ft16.2 ft

The GD705R-2 beside its neighbours

Base versionGD705R-2GD705A-4
Engine power180 hp199.9 hp
Weight38,581 lb38,846 lb
Fuel capacityGD705A-4: 105.7 gal
Wheelbase20.18 ft21.17 ft
Moldboard width14.2 ft14.2 ft

GD705R-2: forum references

Related discussion: “Komatsu Gd705 5 Crank No Start”: GD705A-4.

GD705R-2: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)motor graderGD705R-2No matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionKomatsu; GD705R-2No matching recall in the stated search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Federal agency data

Komatsu GD705R-2: Configuration records

GD705R-2
SpecificationSource figure
Dimensions and weight
Overall Length8.54 ft
Width Over Tires8.04 ft
Wheelbase20.18 ft
Rear Ground Clearance1.43 ft
Tandem Axle Wheelbase5.01 ft
Front Ground Clearance1.89 ft
Blade Base9.06 ft
Height To Top Of Isomount Cab11.27 ft
Engine
Net Power Gear 4-6180 hp
Engine ModelHN-220-CI
Max Power180 hp
Net Torque Gears 3-4579 lb-ft
Displacement743 cu in
Front Axle
Wheel Lean20 degrees
Oscillation - Total26 degrees
Ground Clearance1.9 ft
Moldboard
Moldboard Width14.2 ft
Moldboard Height27.6 in
Moldboard Thickness0.8 in
Max Depth Of Cut26.8 in
Circle
Max Reach Outside Tires - Left92.2 in
Max Reach Outside Tires - Right92.4 in
Max Lift Above Ground16.6 in
Operational
Std Operation Weight - Front Axle12,434 lb
Std Operation Weight - Rear Axle26,147 lb
Std Operation Weight - Total38,581 lb
Tire Size14.00-24-12PR
Steering
Turning Radius37.8 ft
Transmission and speeds
Transmission TypeTORQFLOW
Number Of Gears - Forward4
Number Of Gears - Reverse4
Max Speed - Forward27.4 mph
Max Speed - Reverse27.4 mph

Source

More in Komatsu: GD705A-4, GD555-3–GD675-5, GD825A-2.