The Caterpillar 140M is a motor grader designed for road construction, maintenance, and grading applications. It is part of Caterpillar's M Series and is commonly used for shaping surfaces, maintaining haul roads, spreading material, and fine grading work. The 140M typically features a front-mounted moldboard, articulated frame, and operator controls suited to precise blade positioning. It is used in municipal, mining, and construction environments where consistent grading performance is required. The model is known for its balance of maneuverability, visibility, and control in medium-duty grading tasks. Specifications may vary by configuration, year, and regional market.
Blades
Caterpillar 140M Motor Grader Blades specifications
Blade Tip Range - Backward
5 degrees
Blade Tip Range - Forward
40 degrees
Circle Centershift - Left
27.40 in (69.60 cm)
Circle Centershift - Right
28.70 in (72.90 cm)
Maximum Blade Position Angle
90 degrees
Maximum Depth of Cut
28.10 in (71.37 cm)
Maximum Lift Above Ground
18.90 in (48.01 cm)
Maximum Shoulder Reach Outside of Tires - Left
70.50 in (179.07 cm)
Maximum Shoulder Reach Outside of Tires - Right
77.90 in (197.87 cm)
Moldboard Sideshift - Left
20.10 in (51.05 cm)
Moldboard Sideshift - Right
26.00 in (66.04 cm)
Circle
Caterpillar 140M Motor Grader Circle specifications
Blade Tip Angle - Front
40 degrees
Blade Tip Angle - Rear
5 degrees
Diameter
60.20 in (152.91 cm)
Max Reach Outside Tires - Left
70.50 in (179.07 cm)
Max Reach Outside Tires - Right
77.90 in (197.87 cm)
Shift Left
27.40 in (69.60 cm)
Shift Right
28.70 in (72.90 cm)
Dimensions
Caterpillar 140M Motor Grader Dimensions specifications
Blade Base
8.40 ft (2.56 m)
Front Ground Clearance
1.90 ft (0.58 m)
Ground Clearance - Rear Axle
13.30 in (33.78 cm)
Height - Exhaust Stack
121.00 in (307.34 cm)
Height - Front Axle Center
23.50 in (59.69 cm)
Height - Top of Cab
130.00 ft (39.62 m)
Height - Top of Cylinders
119.00 in (302.26 cm)
Height to Top of Isomount Cab
10.80 ft (3.29 m)
Length - Between Tandem Axles
60.00 in (152.40 cm)
Length - Front Axle to Mid Tandem
241.00 in (612.14 cm)
Length - Front Axle to Moldboard
100.00 in (254.00 cm)
Length - Front Tire to Rear of Machine
344.00 in (873.76 cm)
Overall Length
28.60 ft (8.72 m)
Rear Ground Clearance
1.20 ft (0.37 m)
Tandem Axle Wheelbase
5.00 ft (1.52 m)
Wheelbase
20.10 ft (6.13 m)
Width - Outside Front Tires
98.00 in (248.92 cm)
Width - Outside Rear Tires
98.00 in (248.92 cm)
Width - Tire Center Lines
84.00 in (213.36 cm)
Width Over Tires
8.20 ft (2.50 m)
Engine
Caterpillar 140M Motor Grader Engine specifications
Base Power (1st Gear) - Net
183.00 hp (136.47 kw)
Base Power (1st Gear) - Net - Metric
186.00 hp (138.70 kw)
Bore
4.30 in (10.92 cm)
Derating Altitude
10,000.00 ft (3,048.00 m)
Displacement
439.00 cu in (7,193.94 cu cm)
Emissions
Emissions equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Engine Model
Cat C7 ACERT
High - Ambient Capability
122 degrees
High Ambient - Fan Speed - Maximum
1650 rpm
High Ambient - Fan Speed - Minimum
600 rpm
Max Power
183.00 hp (136.47 kw)
Net Power Gears 7-8
183.00 hp (136.47 kw)
Number of Cylinders
6
Power Measured @
2000 rpm
Speed at Rated Power
2000 rpm
Standard - Ambient Capability
109 degrees
Standard - Fan Speed - Maximum
1450 rpm
Standard - Fan Speed - Minimum
600 rpm
Stroke
5.00 in (12.70 cm)
Torque Rise - V Plus
39%
V Plus Range - Net
136-174 kW (183-233)
V Plus Range - Net - Metric
136-174 kW (186-237)
Frame
Caterpillar 140M Motor Grader Frame specifications
Circle - Blade Beam Thickness
1.60 in (4.06 cm)
Circle - Diameter
60.20 in (152.91 cm)
Drawbar - Height
6.00 in (15.24 cm)
Drawbar - Width
3.00 in (7.62 cm)
Front Axle - Height to Center
23.00 in (58.42 cm)
Front Axle - Total Oscillation per Side
32 degrees
Front Axle - Wheel Lean - Left/Right
18 degrees
Front Frame Structure - Height
12.00 ft (3.66 m)
Front Frame Structure - Width
12.00 ft (3.66 m)
Front Axle
Caterpillar 140M Motor Grader Front Axle specifications
Ground Clearance
1.90 ft (0.58 m)
Oscillation - Total
32 degrees
Wheel Lean
18 degrees
Hydraulic System
Caterpillar 140M Motor Grader Hydraulic System specifications
Circuit Type
Electro-hydraulic load sensing closed center
Maximum System Pressure
3500 psi
Pump Flow
55.70 gpm (210.82 lpm)
Pump Output
55.70 gpm (210.82 lpm)
Pump Type
Variable piston
Relief Valve Pressure
3500 psi
Standby Pressure
450 psi
Moldboard
Caterpillar 140M Motor Grader Moldboard specifications
Arc Radius
16.30 in (41.40 cm)
Blade Pull - Base GVW
24,294.00 lbs (11,017.69 kg)
Blade Pull - Maximum GVW
31,758.00 lbs (14,402.72 kg)
Blade Pull at Max Weight
45,787.80 lbs (20,765.44 kg)
Blade Width
12.00 ft (3.66 m)
Cutting Edge Thickness
0.60 in (1.52 cm)
Cutting Edge Width
6.00 in (15.24 cm)
End Bit - Thickness
0.60 in (1.52 cm)
End Bit - Width
6.00 in (15.24 cm)
Max Depth of Cut
28.10 in (71.37 cm)
Moldboard - Height
24.00 in (60.96 cm)
Moldboard - Thickness
0.90 in (2.29 cm)
Moldboard - Width
12.00 ft (3.66 m)
Moldboard Height
24.00 in (60.96 cm)
Moldboard Length
12.00 ft (3.66 m)
Moldboard Thickness
0.90 in (2.29 cm)
Moldboard Width
12.00 ft (3.66 m)
Side Shift Left
20.10 in (51.05 cm)
Side Shift Right
26.00 in (66.04 cm)
Throat Clearance
6.50 in (16.51 cm)
Operating Specifications
Caterpillar 140M Motor Grader Operating Specifications specifications
Articulation Angle - Left/Right
20 degrees
Circle Gearbox Fluid Capacity
1.80 gal (6.81 l)
Cooling System Fluid Capacity
12.40 gal (46.93 l)
Forward - 1st
2.50 mph (4.02 kph)
Forward - 2nd
3.40 mph (5.47 kph)
Forward - 3rd
5.00 mph (8.05 kph)
Forward - 4th
6.80 mph (10.94 kph)
Forward - 5th
10.60 mph (17.06 kph)
Forward - 6th
14.50 mph (23.34 kph)
Forward - 7th
19.90 mph (32.03 kph)
Forward - 8th
29.00 mph (46.67 kph)
Fuel Capacity
110.00 gal (416.35 l)
Hydraulic System Fluid Capacity
15.90 gal (60.18 l)
Max Operation Weight - Front Axle
17,908.00 lbs (8,121.54 kg)
Max Operation Weight - Rear Axle
32,967.00 lbs (14,951.02 kg)
Max Operation Weight - Total
50,875.00 lbs (23,072.56 kg)
Operating Weight
33,356.00 lbs (15,127.44 kg)
Rear Diff/Final Drive Fluid Capacity
17.20 gal (65.10 l)
Reverse - 1st
2
Reverse - 2nd
3.70 mph (5.95 kph)
Reverse - 3rd
5.40 mph (8.69 kph)
Reverse - 4th
8.40 mph (13.52 kph)
Reverse - 5th
15.70 mph (25.27 kph)
Reverse - 6th
22.90 mph (36.85 kph)
Std Operation Weight - Front Axle
9,173.00 lbs (4,160.09 kg)
Std Operation Weight - Rear Axle
24,183.00 lbs (10,967.35 kg)
Std Operation Weight - Total
33,356.00 lbs (15,127.44 kg)
Steering Range - Left/Right
47.5 degrees
Tandem Case Fluid Capacity (each)
16.90 gal (63.97 l)
Top Speed - Forward
29.00 mph (46.67 kph)
Top Speed - Reverse
22.90 mph (36.85 kph)
Turning Radius - Outside Front Tires
25.00 ft (7.62 m)
Power Train
Caterpillar 140M Motor Grader Power Train specifications
Brakes - Parking
Multiple oil disc
Brakes - Secondary
Dual circuit control system
Brakes - Service
Multiple oil disc
Brakes - Service - Surface Area
3,565.00 cu in (58,420.01 cu cm)
Forward/Reverse Gears
8 Forward/6 Reverse
Transmission
Direct drive power shift countershaft
Ripper
Caterpillar 140M Motor Grader Ripper specifications
Machine Length Increase, Beam Raised
36.20 in (91.95 cm)
Penetration Force
20,540.00 lbs (9,315.19 kg)
Pry-Out Force
26,259.00 lbs (11,908.84 kg)
Ripper Shank Holder Spacing
21.00 in (53.34 cm)
Ripper Shank Holders
5
Ripping Depth - Maximum
16.80 in (42.67 cm)
Scarifier
Caterpillar 140M Motor Grader Scarifier specifications
