140G Caterpillar Motor GraderThe Caterpillar 140G motor grader is one of the most popular motor graders ever produced.

It’s estimated that over 25,000 of these machines have been sold since they were first manufactured.

All models of the Caterpillar 140G motor grader feature a 3306 turbocharged, six-cylinder engine that produces up to 150 flywheel horsepower (fwhp). Other specifications may differ slightly based on where a 140G motor grader was built and in what year.

Note that 140G graders manufactured in the United States have the serial number prefix 72V. Those manufactured in Canada have the prefix 81V. Australian models use the prefix 13W and Brazilian modesl use 5MD.

Caterpillar 140G motor grader dimensions

Total length

8310 millimetres (27.3 feet)

Height to top of cab

3360 millimetres (11 feet)

Width over tyres

2440 millimetres (8 feet)

Blade base

2570 millimetres (8.4 feet)


5920 millimetres (19.4 feet)

Tandem axle wheelbase

1520 millimetres (5 feet)

Caterpillar 140G engine specifications



Maximum power (net power gear 5 - 6)

150 horespower; 111.9 kilowatts

Number of cylinders



10.5 litres (638 cubic inches)

Caterpillar 140G operational specifications

Standard operational weight

12620 kilograms (27822 pounds)

Fuel capacity

284 litres (75 gallons)

Oil capacity

29.3 litres (7.7 gallons)

Hydraulic system fluid capacity

68 litres (18 gallons)

Cooling system fluid capacity

47.3 litres (12.5 gallons)

Tyre size

14x24 10PR

Operating voltage

24 volts

Alternator-supplied amperage

40 amps

Caterpillar 140G transmission specifications


Direct drive, powershift

Maximum forward speed

41 kilometres per hour (25.5 miles per hour)

Maximum reverse speed

41 kilometres per hour (25.5 miles per hour)

Number of forward gears


Number of reverse gears


Caterpillar 140G steering specifications

Turning radius

7.3 metres (24 feet)

Articulation L/R

50 degrees

Caterpillar 140G front axle specifications

Ground clearance

610 millimetres (2 feet)

Wheel lean

18 degrees

Total oscillation

32 degrees

Caterpillar 140G hydraulic system specifications

Pump type

Closed-centre, constant-pressure system with variable displacement piston pump

Pump flow

193.1 liters per minute (51 gallons per minute)

Relief valve pressure

14823.7 kilopascal (2150 pounds per square inch)

Caterpillar 140G moldboard specifications

Moldboard height

610 millimetres (24 inches)

Moldboard width

3660 millimetres (12 feet)

Moldboard thickness

22 millimetres (0.87 inches)

Maximum depth of cut

438 millimetres (17.2 inches)

Side shift left

660 millimetres (26 inches)

Side shift right

660 millimetres (26 inches)

Caterpillar 140G circle specifications


360 degrees


1530 millimetres (60.2 inches)

Shift left

650 millimetres (25.6 inches)

Shift right

520 millimetres (20.5 inches)

Maximum reach outside tyres - left

1960 millimetres (77.2 inches)

Maximum reach outside tyres - right

1830 millimetres (72 inches)

Maximum lift above ground

464 millimetres (18.3 inches)


For more information about the range of refurbished Caterpillar 140G motor graders available from KH Plant, contact us online or call one of our representatives on +27 83 274 4882.