The Caterpillar 140M is a motor grader designed for road construction, maintenance, and grading applications. It is part of Caterpillar's M Series grader line and is commonly used for shaping surfaces, ditching, snow removal, and fine grading on highways, municipal roads, and site preparation projects. The 140M features a front-mounted engine, articulated frame, and centrally located cab for visibility and control. It is typically equipped with a moldboard, circle, and scarifier options depending on configuration. The model is known for balanced maneuverability, hydraulic control, and compatibility with a range of grading attachments and worksite conditions.
| Blade Tip Range - Backward | 5 degrees
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| Blade Tip Range - Forward | 40 degrees
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| Circle Centershift - Left | 27.40 in (69.60 cm)
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| Circle Centershift - Right | 28.70 in (72.90 cm)
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| Maximum Blade Position Angle | 90 degrees
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| Maximum Depth of Cut | 28.10 in (71.37 cm)
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| Maximum Lift Above Ground | 18.90 in (48.01 cm)
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| Maximum Shoulder Reach Outside of Tires - Left | 70.50 in (179.07 cm)
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| Maximum Shoulder Reach Outside of Tires - Right | 77.90 in (197.87 cm)
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| Moldboard Sideshift - Left | 20.10 in (51.05 cm)
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| Moldboard Sideshift - Right | 26.00 in (66.04 cm)
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| Blade Base | 8.40 ft (2.56 m)
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| Front Ground Clearance | 1.90 ft (0.58 m)
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| Ground Clearance - Rear Axle | 13.30 in (33.78 cm)
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| Height - Exhaust Stack | 121.00 in (307.34 cm)
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| Height - Front Axle Center | 23.50 in (59.69 cm)
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| Height - Top of Cab | 130.00 ft (39.62 m)
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| Height - Top of Cylinders | 119.00 in (302.26 cm)
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| Height to Top of Isomount Cab | 10.80 ft (3.29 m)
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| Length - Between Tandem Axles | 60.00 in (152.40 cm)
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| Length - Front Axle to Mid Tandem | 241.00 in (612.14 cm)
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| Length - Front Axle to Moldboard | 100.00 in (254.00 cm)
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| Length - Front Tire to Rear of Machine | 344.00 in (873.76 cm)
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| Overall Length | 28.60 ft (8.72 m)
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| Rear Ground Clearance | 1.20 ft (0.37 m)
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| Tandem Axle Wheelbase | 5.00 ft (1.52 m)
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| Wheelbase | 20.10 ft (6.13 m)
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| Width - Outside Front Tires | 98.00 in (248.92 cm)
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| Width - Outside Rear Tires | 98.00 in (248.92 cm)
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| Width - Tire Center Lines | 84.00 in (213.36 cm)
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| Width Over Tires | 8.20 ft (2.50 m)
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| Base Power (1st Gear) - Net | 183.00 hp (136.47 kw)
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| Base Power (1st Gear) - Net - Metric | 186.00 hp (138.70 kw)
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| Bore | 4.30 in (10.92 cm)
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| Derating Altitude | 10,000.00 ft (3,048.00 m)
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| Displacement | 439.00 cu in (7,193.94 cu cm)
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| Emissions | Emissions equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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| Engine Model | Cat C7 ACERT
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| High - Ambient Capability | 122 degrees
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| High Ambient - Fan Speed - Maximum | 1650 rpm
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| High Ambient - Fan Speed - Minimum | 600 rpm
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| Max Power | 183.00 hp (136.47 kw)
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| Net Power Gears 7-8 | 183.00 hp (136.47 kw)
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| Number of Cylinders | 6
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| Power Measured @ | 2000 rpm
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| Speed at Rated Power | 2000 rpm
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| Standard - Ambient Capability | 109 degrees
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| Standard - Fan Speed - Maximum | 1450 rpm
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| Standard - Fan Speed - Minimum | 600 rpm
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| Stroke | 5.00 in (12.70 cm)
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| Torque Rise - V Plus | 39%
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| V Plus Range - Net | 136-174 kW (183-233)
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| V Plus Range - Net - Metric | 136-174 kW (186-237)
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| Articulation Angle - Left/Right | 20 degrees
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| Circle Gearbox Fluid Capacity | 1.80 gal (6.81 l)
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| Cooling System Fluid Capacity | 12.40 gal (46.93 l)
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| Forward - 1st | 2.50 mph (4.02 kph)
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| Forward - 2nd | 3.40 mph (5.47 kph)
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| Forward - 3rd | 5.00 mph (8.05 kph)
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| Forward - 4th | 6.80 mph (10.94 kph)
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| Forward - 5th | 10.60 mph (17.06 kph)
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| Forward - 6th | 14.50 mph (23.34 kph)
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| Forward - 7th | 19.90 mph (32.03 kph)
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| Forward - 8th | 29.00 mph (46.67 kph)
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| Fuel Capacity | 110.00 gal (416.35 l)
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| Hydraulic System Fluid Capacity | 15.90 gal (60.18 l)
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| Max Operation Weight - Front Axle | 17,908.00 lbs (8,122.94 kg)
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| Max Operation Weight - Rear Axle | 32,967.00 lbs (14,953.60 kg)
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| Max Operation Weight - Total | 50,875.00 lbs (23,076.54 kg)
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| Operating Weight | 33,356.00 lbs (15,130.05 kg)
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| Rear Diff/Final Drive Fluid Capacity | 17.20 gal (65.10 l)
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| Reverse - 1st | 2
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| Reverse - 2nd | 3.70 mph (5.95 kph)
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| Reverse - 3rd | 5.40 mph (8.69 kph)
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| Reverse - 4th | 8.40 mph (13.52 kph)
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| Reverse - 5th | 15.70 mph (25.27 kph)
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| Reverse - 6th | 22.90 mph (36.85 kph)
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| Std Operation Weight - Front Axle | 9,173.00 lbs (4,160.81 kg)
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| Std Operation Weight - Rear Axle | 24,183.00 lbs (10,969.24 kg)
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| Std Operation Weight - Total | 33,356.00 lbs (15,130.05 kg)
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| Steering Range - Left/Right | 47.5 degrees
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| Tandem Case Fluid Capacity (each) | 16.90 gal (63.97 l)
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| Top Speed - Forward | 29.00 mph (46.67 kph)
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| Top Speed - Reverse | 22.90 mph (36.85 kph)
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| Turning Radius - Outside Front Tires | 25.00 ft (7.62 m)
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| Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing | 4.60 in (11.68 cm)
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| Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum | 18.40 in (46.74 cm)
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| Front, V-Type, 5 or 11 Tooth - Working Width | 47.40 in (120.40 cm)
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| Mid, V-Type - Scarifier Shank Holder Spacing | 4.60 in (11.68 cm)
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| Mid, V-Type - Scarifier Shank Holders | 11
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| Mid, V-Type - Scarifying Depth, Maximum | 11.50 in (29.21 cm)
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| Mid, V-Type - Working Width | 46.60 in (118.36 cm)
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| Rear - Scarifier Shank Holder Spacing | 10.50 in (26.67 cm)
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| Rear - Scarifier Shank Holders | 9
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| Rear - Scarifying Depth, Maximum | 10.50 in (26.67 cm)
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| Rear - Working Width | 91.00 in (231.14 cm)
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| Gross Vehicle Weight - Base - Front Axle | 9,561.00 lbs (4,336.80 kg)
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| Gross Vehicle Weight - Base - Rear Axle | 26,993.00 lbs (12,243.83 kg)
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| Gross Vehicle Weight - Base - Total | 36,554.00 lbs (16,580.64 kg)
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| Gross Vehicle Weight - Maximum - Front Axle | 16,606.00 lbs (7,532.36 kg)
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| Gross Vehicle Weight - Maximum - Rear Axle | 35,287.00 lbs (16,005.93 kg)
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| Gross Vehicle Weight - Maximum - Total | 51,893.00 lbs (23,538.30 kg)
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| Gross Vehicle Weight - Typically Equipped | 41,868.00 lbs (18,991.03 kg)
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| Gross Vehicle Weight - Typically Equipped - Front Axle | 11,716.00 lbs (5,314.29 kg)
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| Gross Vehicle Weight - Typically Equipped - Total | 41,868.00 lbs (18,991.03 kg)
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| Operating Weight - Typically Equipped | 41,868.00 lbs (18,991.03 kg)
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