The Caterpillar 140G is a motor grader used for road construction, maintenance, and surface finishing. Built by Caterpillar, the 140G is part of the company's G-series graders and is known for its mechanical drivetrain, articulated frame, and moldboard control system. It is commonly used for grading gravel roads, shaping ditches, leveling subgrades, and maintaining haul roads in construction, mining, and municipal applications. The 140G typically features a diesel engine, tandem rear axles, and a centrally mounted blade for precise material control. It remains a recognized model in the used heavy equipment market for grading and earthmoving work.
General Specifications
Caterpillar 140G Motor Grader General Specifications specifications
Approx. Ship Wt.
32,880.00 lbs (14,914.14 kg) - Starting 1973
Controls
Hyd. - Starting 1973
Horse- power, Rated
150.00 hp (111.86 kw) - Starting 1973
Length
328.00 in (833.12 cm) - Starting 1973
Maximum Forward Speed
25.50 mph (41.04 kph) - Starting 1973
Maximum Reverse Speed
25.50 mph (41.04 kph) - Starting 1973
Mold- board Length
144.00 in (365.76 cm) - Starting 1973
Product Identification Prefix
72V(U.S.) - Starting 1973
Turning Radius
288.00 in (731.52 cm) - Starting 1973
Wheel- base
233.00 in (591.82 cm) - Starting 1973
Width
96.00 in (243.84 cm) - Starting 1973
Years Built
1973 - 1995
Circle
Caterpillar 140G Motor Grader Circle specifications
Diameter
60.30 in (153.16 cm)
Max Lift Above Ground
18.30 in (46.48 cm)
Max Reach Outside Tires - Left
77.20 in (196.09 cm)
Max Reach Outside Tires - Right
72.10 in (183.13 cm)
Rotation
360 degrees
Shift Left
25.60 in (65.02 cm)
Shift Right
20.50 in (52.07 cm)
Dimensions
Caterpillar 140G Motor Grader Dimensions specifications
Blade Base
8.50 ft (2.59 m)
Height to Top of Isomount Cab
11.10 ft (3.38 m)
Overall Length
27.30 ft (8.32 m)
Tandem Axle Wheelbase
5.00 ft (1.52 m)
Wheelbase
19.50 ft (5.94 m)
Width Over Tires
8.10 ft (2.47 m)
Engine
Caterpillar 140G Motor Grader Engine specifications
Displacement
638.00 cu in (10,454.97 cu cm)
Max Power
150.00 hp (111.86 kw)
Net Power Gear 5-6
150.00 hp (111.86 kw)
Number of Cylinders
6
Front Axle
Caterpillar 140G Motor Grader Front Axle specifications
Ground Clearance
2.10 ft (0.64 m)
Oscillation - Total
32 degrees
Wheel Lean
18 degrees
Hydraulic System
Caterpillar 140G Motor Grader Hydraulic System specifications
Pump Flow
51.00 gpm (193.04 lpm)
Pump Type
closed-centre constant-presure system w/ variable displacement piston pump
Relief Valve Pressure
2150 psi
Moldboard
Caterpillar 140G Motor Grader Moldboard specifications
Max Depth of Cut
17.30 in (43.94 cm)
Moldboard Height
24.10 in (61.21 cm)
Moldboard Thickness
0.90 in (2.29 cm)
Moldboard Width
12.10 ft (3.69 m)
Side Shift Left
26.00 in (66.04 cm)
Side Shift Right
26.00 in (66.04 cm)
Operating Specifications
Caterpillar 140G Motor Grader Operating Specifications specifications
Alternator Supplied Amperage
40 amps
Cooling System Fluid Capacity
12.50 gal (47.31 l)
Fuel Capacity
75.10 gal (284.25 l)
Hydraulic System Fluid Capacity
18.00 gal (68.13 l)
Oil System Fluid Capacity
7.80 gal (29.52 l)
Operating Voltage
24 volts
Std Operation Weight - Total
27,822.40 lbs (12,620.04 kg)
Tire Size
14x24 10PR
Steering System
Caterpillar 140G Motor Grader Steering System specifications
Articulation Angle
50 degrees
Turning Radius
24.00 ft (7.32 m)
Transmission
Caterpillar 140G Motor Grader Transmission specifications
Max Speed - Forward
25.50 mph (41.04 kph)
Max Speed - Reverse
25.50 mph (41.04 kph)
Number of Gears - Forward
6
Number of Gears - Reverse
6
Transmission Type
direct drive power shift
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