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Caterpillar 120H Motor Grader

The Caterpillar 120H is a motor grader used for road construction, maintenance, and site preparation. Built by Caterpillar, the 120H is known for its articulated frame, moldboard control, and hydraulic systems that support precise grading and leveling work. It is commonly used in highway projects, mining operations, and municipal road maintenance. The machine is designed for blade control, traction, and operator visibility in grading applications. The Caterpillar 120H typically features a diesel engine, tandem drive, and enclosed cab options depending on configuration. It remains a recognized model in the used heavy equipment market for grading and earthmoving tasks.


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Circle

Blade Tip Angle - Front40 degrees
Blade Tip Angle - Rear5 degrees
Diameter60.30 in (153.16 cm)
Max Lift Above Ground18.00 in (45.72 cm)
Max Reach Outside Tires - Left72.50 in (184.15 cm)
Max Reach Outside Tires - Right75.30 in (191.26 cm)
Rotation360 degrees
Shift Left24.70 in (62.74 cm)
Shift Right24.80 in (62.99 cm)

Dimensions

Blade Base8.60 ft (2.62 m)
Front Ground Clearance2.00 ft (0.61 m)
Height to Top of Isomount Cab10.30 ft (3.14 m)
Overall Length27.10 ft (8.26 m)
Tandem Axle Wheelbase5.00 ft (1.52 m)
Wheelbase19.30 ft (5.88 m)
Width Over Tires8.10 ft (2.47 m)

Engine

Aspirationturbocharged
Displacement402.80 cu in (6,600.72 cu cm)
Engine Model3116 DITA
Max Power140.00 hp (104.40 kw)
Net Power Gear 1-2125.00 hp (93.21 kw)
Net Power Gear 4-6125.00 hp (93.21 kw)
Net Power Gears 7-8140.00 hp (104.40 kw)
Number of Cylinders6
Power Measured @2000 rpm
Torque Measured @1400 rpm

Front Axle

Ground Clearance2.00 ft (0.61 m)
Oscillation - Total32 degrees
Wheel Lean18 degrees

Hydraulic System

Pump Flow39.10 gpm (147.99 lpm)
Pump TypeAxial Piston
Relief Valve Pressure3500 psi

Moldboard

Blade Down Pressure20,062.10 lbs (9,100.03 kg)
Blade Pull at Max Weight23,503.50 lbs (10,661.02 kg)
Max Depth of Cut30.60 in (77.72 cm)
Moldboard Height24.10 in (61.21 cm)
Moldboard Thickness0.90 in (2.29 cm)
Moldboard Width12.10 ft (3.69 m)
Side Shift Left20.70 in (52.58 cm)
Side Shift Right26.00 in (66.04 cm)

Operating Specifications

Alternator Supplied Amperage50 amps
Circle Gearbox Fluid Capacity1.90 gal (7.19 l)
Cooling System Fluid Capacity10.60 gal (40.12 l)
Hydraulic System Fluid Capacity18.00 gal (68.13 l)
Oil System Fluid Capacity6.10 gal (23.09 l)
Operating Voltage24 volts
Rear Diff/Final Drive Fluid Capacity12.50 gal (47.31 l)
Std Operation Weight - Front Axle7,880.00 lbs (3,574.31 kg)
Std Operation Weight - Rear Axle19,720.00 lbs (8,944.85 kg)
Tandem Case Fluid Capacity (each)13.00 gal (49.21 l)

Steering System

Articulation Angle20 degrees
Turning Radius23.70 ft (7.22 m)

Transmission

Max Speed - Forward26.50 mph (42.65 kph)
Max Speed - Reverse21.00 mph (33.80 kph)
Number of Gears - Forward8
Number of Gears - Reverse6
Transmission Typedirect drive powershift

  • Caterpillar 120Hs currently for sale
  • A 2024 Caterpillar 120H From Yancey Bros. Co. for $355,500.00 USD
  • A 2023 Caterpillar 120H From Holt Cat for Call for Price
  • A 2023 Caterpillar 120H From Holt Cat for Call for Price
  • A 2023 Caterpillar 120H From Holt Cat for Call for Price
  • A 2023 Caterpillar 120H From Holt Cat for Call for Price



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