- Overall Length: 27.85 ft / 8488 mm
- Width Over Tires: 8.14 ft / 2481 mm
- Wheelbase: 19.4 ft / 5915 mm
- Rear Ground Clearance: 1.13 ft / 347 mm
Published dimensions and weight
Caterpillar 120M
The Caterpillar 120M pairs the C6.6 ACERT VHP engine (138 hp) with an operating weight near 18.4 t.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Std Operation Weight - Total31069 lb14093 kg
03Selected published values212
Motor graders are commonly used to shape, level and maintain roads, pads and drainage surfaces. Published rows for Caterpillar 120M include published moldboard width of 12 ft / 3668 mm, published maximum power of 138 hp / 103 kw, published operating weight of 31069 lb / 14093 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (27.85 ft / 8488 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tires” field (8.14 ft / 2481 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Wheelbase” field (19.4 ft / 5915 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length27.85 ft8488 mm
Width Over Tires8.14 ft2481 mm
Wheelbase19.4 ft5915 mm
Rear Ground Clearance1.13 ft347 mm
Tandem Axle Wheelbase4.96 ft1511 mm
Front Ground Clearance1.87 ft572 mm
Blade Base8.24 ft2511 mm
Height To Top Of Isomount Cab10.75 ft3278 mm
Length - Between Tandem Axles59.5 in1511.3 mm
Length - Counterweight To Ripper389.3 in9888.22 mm
Length - Front Axle To Mid Tandem232.8 in5913.12 mm
Length - Front Axle To Moldboard98.85 in2510.79 mm
Length - Front Tire To Rear Of Machine334.1 in8486.14 mm
Height - Top Of Cylinders113.7 in2887.98 mm
Height - Top Of Cab10.75 ft0.28 m
Height - Front Axle Center22.5 in571.5 mm
Height - Exhaust Stack112.4 in2854.96 mm
Width - Outside Front Tires97.7 in2481.58 mm
Width - Outside Rear Tires97.7 in2481.58 mm
Width - Tire Center Lines84.1 in2136.14 mm
Ground Clearance - Rear Axle13.6 in345.44 mm
Ripper
Pry-Out Force26303 lb11930.9 kg
Ripping Depth - Maximum17 in431.8 mm
Ripper Shank Holders55
Penetration Force17705 lb8030.9 kg
Machine Length Increase, Beam Raised39.2 in995.7 mm
Ripper Shank Holder Spacing21 in533.4 mm
Engine
Number Of Cylinders66
Engine Make22362236
Engine ModelC6.6 ACERT VHPC6.6 ACERT VHP
Power Measured @2000 rpm2000 rpm
Max Power138 hp103 kw
Net Power Gears 7-8138 hp103 kw
Displacement403 cu in6.7 L
Bore4.2 in105 mm
Stroke5 in127 mm
EmissionsU.S. EPA Tier 3/EU Stage IIIA equivalentU.S. EPA Tier 3/EU Stage IIIA equivalent
Note (1)Maximum torque (VHP Plus) measured at 1,400 rpm.Maximum torque (VHP Plus) measured at 1,400 rpm.
Note (2)Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 Standards in effect at the time of manufacture.Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 Standards in effect at the time of manufacture.
Note (3)Net power advertised is the power available at rated speed of 2,000 rpm, measured at the flywheel when engine is equipped with fan running at minimum speed, air cleaner, muffler and alternator.Net power advertised is the power available at rated speed of 2,000 rpm, measured at the flywheel when engine is equipped with fan running at minimum speed, air cleaner, muffler and alternator.
Note (4)Power as declared per ISO 14396: Rated Speed = 2,000 rpm; VHP Plus = 175 kW (234 hp)Power as declared per ISO 14396: Rated Speed = 2,000 rpm; VHP Plus = 175 kW (234 hp)
Note (5)No engine derating required up to 3048 m (10,000 ft).No engine derating required up to 3048 m (10,000 ft).
Derating Altitude11500 ft3505.2 m
Maximum Torque690 lb ft935.6 Nm
Base Power (1st Gear) - Net138 hp103 kw
Speed At Rated Power2,000 rpm2,000 rpm
High - Ambient Capability122 degrees122 degrees
Base Power (1st Gear) - Net - Metric140 hp104.4 kw
High Ambient - Fan Speed - Maximum1,650 rpm1,650 rpm
High Ambient - Fan Speed - Minimum600 rpm600 rpm
Vhp Plus Range - Net103-136 kW (138-182 hp)103-136 kW (138-182 hp)
Vhp Plus Range - Net - Metric103-136 kW (140-185 hp)103-136 kW (140-185 hp)
Torque Rise - Vhp Plus40%40%
Base Power (All Gears) - Net138 hp103 kw
Standard - Fan Speed - Maximum1,150 rpm1,150 rpm
Standard - Fan Speed - Minimum600 rpm600 rpm
Standard - Ambient Capability109 degrees109 degrees
Vhp Range - Net103-114 kW (138-153 hp)103-114 kW (138-153 hp)
Maximum Torque - Vhp Plus - Net668 lb ft905.7 Nm
Frame
Front Frame Structure - Height0.9 ft254 mm
Front Frame Structure - Width0.9 ft254 mm
Front Frame Structure - Thickness0.1 ft15.3 mm
Circle - Diameter60.2 in1529.1 mm
Drawbar - Height6 in152.4 mm
Front Axle - Height To Center22.5 in571.5 mm
Circle - Blade Beam Thickness1.4 in35.6 mm
Front Axle - Total Oscillation Per Side32 degrees32 degrees
Drawbar - Thickness0.4 in10.2 mm
Drawbar - Width3 in76.2 mm
Front Axle - Wheel Lean - Left/Right18 degrees18 degrees
Drawbar - Yoke Bar Thickness0.8 in19.1 mm
Operational
Std Operation Weight - Front Axle8233 lb3735 kg
Std Operation Weight - Rear Axle22836 lb10358 kg
Hydraulic System Fluid Capacity15.9 gal60 L
Std Operation Weight - Total31069 lb14093 kg
Max Operation Weight - Front Axle16312 lb7399 kg
Max Operation Weight - Rear Axle28378 lb12872 kg
Max Operation Weight - Total44690 lb20271 kg
Fuel Capacity90 gal340 L
Cooling System Fluid Capacity10.4 gal40 L
Rear Diff/Final Drive Fluid Capacity13.2 gal50 L
Circle Gearbox Fluid Capacity1.8 gal7 L
Tandem Case Fluid Capacity (Each)16.9 gal61 L
Power Train
Brakes - ParkingMultiple oil discMultiple oil disc
Brakes - ServiceMultiple oil-discMultiple oil-disc
TransmissionDirect drive, power shift, countershaftDirect drive, power shift, countershaft
Forward/Reverse Gears8 Fwd / 6 Rev8 Fwd / 6 Rev
Brakes - SecondaryDual circuit control systemDual circuit control system
Brakes - Service - Surface Area3565 in22.3 m2
Steering
Articulation Angle20 degrees20 degrees
Turning Radius24.5 ft7.5 m
Transmission
Transmission Typedirect drive, power shift, countershaftdirect drive, power shift, countershaft
Number Of Gears - Forward88
Number Of Gears - Reverse66
Max Speed - Forward27.7 mph44.5 km/h
Max Speed - Reverse23.5 mph37.8 km/h
Front Axle
Wheel Lean18 degrees18 degrees
Oscillation - Total32 degrees32 degrees
Ground Clearance1.9 ft572 mm
Weights
Gross Vehicle Weight - Typically Equipped - Rear Axle29343 lb13309.8 kg
Gross Vehicle Weight - Typically Equipped - Front Axle11221 lb5089.8 kg
Gross Vehicle Weight - Typically Equipped - Total40565 lb18400 kg
Operating Weight - Typically Equipped40565 lb18400 kg
Gross Vehicle Weight - Base - Total35783 lb16230.9 kg
Gross Vehicle Weight - Maximum - Total48601 lb22045.1 kg
Gross Vehicle Weight - Base - Rear Axle26479 lb12010.7 kg
Gross Vehicle Weight - Base - Front Axle9303 lb4219.8 kg
Gross Vehicle Weight - Maximum - Front Axle15077 lb6838.9 kg
Gross Vehicle Weight - Maximum - Rear Axle33523 lb15205.8 kg
Hydraulic System
Standby Pressure450 psi450 psi
Maximum System Pressure3500 psi3500 psi
Pump TypeVariable pistonVariable piston
Pump Flow40 gal/min151 L/min
Relief Valve Pressure3500 psi24100 kPa
Circuit TypeElectro-hydraulic load sensing, closed centerElectro-hydraulic load sensing, closed center
Pump Output40 gal/min40 gal/min
Moldboard
Moldboard Width12 ft3668 mm
Moldboard Height24 in610 mm
Moldboard Thickness0.9 in22 mm
Max Depth Of Cut28.3 in720 mm
Side Shift Left20.1 in510 mm
Side Shift Right26 in660 mm
Blade Pull At Max Weight40221 lb18244 kg
Blade Down Pressure28887.2 lb13103 kg
Blade Width12 ft3.7 m
Arc Radius16.3 in414.1 mm
Throat Clearance5.2 in132.1 mm
Cutting Edge Width6 in152.4 mm
Cutting Edge Thickness0.6 in15.3 mm
End Bit - Width6 in152.4 mm
End Bit - Thickness0.6 in15.3 mm
Moldboard - Height24 in609.6 mm
Moldboard - Thickness0.9 in22.1 mm
Moldboard - Width12 ft3.7 m
Blade Pull - Maximum Gvw24218 lb10985.2 kg
Blade Pull - Base Gvw20350 lb9230.7 kg
Blade Down Pressure - Base Gvw16435 lb7454.8 kg
Blade Down Pressure - Maximum Gvw29125 lb13210.9 kg
Circle
Diameter60.2 in1530 mm
Shift Left25.8 in656 mm
Shift Right25.8 in656 mm
Max Reach Outside Tires - Left68.6 in1742 mm
Max Reach Outside Tires - Right75 in1905 mm
Max Lift Above Ground16.8 in427 mm
Blade Tip Angle - Front40 degrees40 degrees
Blade Tip Angle - Rear5 degrees5 degrees
Operating Specifications
Top Speed - Forward27.7 mph44.6 km/h
Top Speed - Reverse23.5 mph37.9 km/h
Turning Radius - Outside Front Tires24.5 ft7.5 m
Steering Range - Left/Right47.5 degrees47.5 degrees
Articulation Angle - Left/Right20 degrees20 degrees
Forward - 8th27.7 mph44.6 km/h
Forward - 7th19 mph30.6 km/h
Forward - 6th13.8 mph22.3 km/h
Forward - 5th10.2 mph16.5 km/h
Forward - 4th6.5 mph10.5 km/h
Forward - 3rd4.8 mph7.7 km/h
Forward - 2nd3.3 mph5.4 km/h
Forward - 1st2.4 mph3.9 km/h
Reverse - 6th23.5 mph37.9 km/h
Reverse - 5th16.1 mph26 km/h
Reverse - 4th8.6 mph13.9 km/h
Reverse - 3rd5.6 mph9.1 km/h
Reverse - 2nd3.8 mph6.2 km/h
Reverse - 1st2 mph3.3 km/h
Standards
BrakesISO 3450:1996ISO 3450:1996
Rops/FopsISO 3471:1992 / ISO 3449:1992ISO 3471:1992 / ISO 3449:1992
SoundISO 6394:1998 / ISO 6395:1988ISO 6394:1998 / ISO 6395:1988
SteeringISO 5010:1992ISO 5010:1992
Service Refill
Cooling System8.7 gal33 L
Engine Oil3.7 gal14.1 L
Hydraulic System - Tank16.9 gal64 L
Tandem Housing - Each15.6 gal59.1 L
Circle Drive Housing1.8 gal6.9 L
Front Wheel Spindle Bearing Housing0.1 gal0.4 L
Fuel Capacity90 gal340.7 L
Transmission - Differential - Final Drives16.5 gal62.5 L
Blade Range
Circle Centershift - Right25.8 in655.4 mm
Circle Centershift - Left25.8 in655.4 mm
Moldboard Sideshift - Right26 in660.4 mm
Moldboard Sideshift - Left20.1 in510.6 mm
Blade Tip Range - Forward40 degrees40 degrees
Blade Tip Range - Backward5 degrees5 degrees
Maximum Shoulder Reach Outside Of Tires - Right75 in1905 mm
Maximum Shoulder Reach Outside Of Tires - Left68.6 in1742.5 mm
Maximum Lift Above Ground16.8 in426.8 mm
Maximum Depth Of Cut28.3 in718.9 mm
Maximum Blade Position Angle90 degrees90 degrees
Scarifier
Rear - Scarifier Shank Holders99
Mid, V-Type - Scarifier Shank Holders1111
Front, V-Type, 5 Or 11 Tooth - Working Width47.4 in1204 mm
Front, V-Type, 5 Or 11 Tooth - Scarifying Depth, Maximum18.4 in467.4 mm
Front, V-Type, 5 Or 11 Tooth - Scarifier Shank Holders5 / 115 / 11
Front, V-Type, 5 Or 11 Tooth - Scarifier Shank Holder Spacing4.6 in116.9 mm
Mid, V-Type - Working Width46.6 in1183.7 mm
Mid, V-Type - Scarifying Depth, Maximum11.5 in292.1 mm
Mid, V-Type - Scarifier Shank Holder Spacing4.6 in116.9 mm
Rear - Working Width91 in2311.4 mm
Rear - Scarifying Depth, Maximum10.5 in266.7 mm
Rear - Scarifier Shank Holder Spacing10.5 in266.7 mm
Mid, Straight - Working Width71 in1803.4 mm
Mid, Straight - Scarifier Shank Holder Spacing4.4 in111.8 mm
Mid, Straight - Scarifier Shank Holders1717
Mid, Straight - Scarifying Depth, Maximum12.5 in317.5 mm
Tandems
Height19.8 in502 mm
Width6.8 in171.8 mm
Sidewall Thickness - Inner0.5 in12.7 mm
Sidewall Thickness - Outer0.6 in15.3 mm
Drive Chain Pitch1.8 in45.8 mm
Wheel Axle Spacing59.5 in1511.3 mm
Tandem Oscillation - Front Up15 degrees15 degrees
Tandem Oscillation - Front Down25 degrees25 degrees
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