Caterpillar 120 GC Motor Grader Specs

Category: Motor Graders ➔
Manufacturer: Caterpillar ➔
Model: 120 GC ➔

Air Conditioning System

Caterpillar 120 GC Motor Grader Air Conditioning System specifications
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. — Starting 2026 Model Year

Blade Range

Caterpillar 120 GC Motor Grader Blade Range specifications
Blade Tip Range - Backward	5 degrees — Starting 2026 Model Year
Blade Tip Range - Forward	40 degrees — Starting 2026 Model Year
Circle Centershift - Left	25.80 in (65.53 cm) — Starting 2026 Model Year
Circle Centershift - Right	25.80 in (65.53 cm) — Starting 2026 Model Year
Maximum Depth of Cut	30.50 in (77.47 cm) — Starting 2026 Model Year
Maximum Lift Above Ground	16.10 in (40.89 cm) — Starting 2026 Model Year
Moldboard Sideshift - Left	20.20 in (51.31 cm) — Starting 2026 Model Year
Moldboard Sideshift - Right	26.10 in (66.29 cm) — Starting 2026 Model Year

Dimensions

Caterpillar 120 GC Motor Grader Dimensions specifications
Length of Machine*	391.40 in (994.16 cm) — Starting 2026 Model Year
Maximum Height	149.10 in (378.71 cm) — Starting 2026 Model Year
Width	94.60 in (240.28 cm) — Starting 2026 Model Year

Engine

Caterpillar 120 GC Motor Grader Engine specifications
Bore	4.10 in (10.41 cm) — Starting 2026 Model Year
Derating Altitude	9,842.00 ft (2,999.84 m) — Starting 2026 Model Year
Displacement	268.50 cu in (4,399.94 cu cm) — Starting 2026 Model Year
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V emission standards — Starting 2026 Model Year
Engine Model	Cat® C4.4 — Starting 2026 Model Year
Engine Power AWD (ISO 14396)	128.00 kw (171.65 hp) — Starting 2026 Model Year
Maximum Torque	544.00 lbs ft (737.56 nm) — Starting 2026 Model Year
Net Power - ISO 9249/SAE J1349	171.00 hp (127.52 kw) — Starting 2026 Model Year
Stroke	5.00 in (12.70 cm) — Starting 2026 Model Year
Torque Rise - ISO 9294	21% — Starting 2026 Model Year

Machine Weight

Caterpillar 120 GC Motor Grader Machine Weight specifications
All-Wheel Drive (AWD) Weight	36,376.00 lbs (16,499.90 kg) — Starting 2026 Model Year

Moldboard

Caterpillar 120 GC Motor Grader Moldboard specifications
Arc Radius	16.30 in (41.40 cm) — Starting 2026 Model Year
Blade Height	20.00 in (50.80 cm) — Starting 2026 Model Year
Blade Width	12.00 ft (3.66 m) — Starting 2026 Model Year
Cutting Edge Width	6.00 in (15.24 cm) — Starting 2026 Model Year
End Bit - Width	152.00 in (386.08 cm) — Starting 2026 Model Year
Throat Clearance	4.70 in (11.94 cm) — Starting 2026 Model Year

Operating Specifications

Caterpillar 120 GC Motor Grader Operating Specifications specifications
Articulation Angle - Left/Right	20? left or right — Starting 2026 Model Year
Steering Range - Left/Right	47.5° left or right — Starting 2026 Model Year

Power Train

Caterpillar 120 GC Motor Grader Power Train specifications
Forward/Reverse Gears	6 Forward / 3 Reverse — Starting 2026 Model Year
Transmission	Countershaft Torque, Converter Powershift — Starting 2026 Model Year

Service Refill Capacities

Caterpillar 120 GC Motor Grader Service Refill Capacities specifications
Circle Drive with Slip Clutch	1.80 gal (6.81 l) — Starting 2026 Model Year
Circle Drive without Slip Clutch	0.40 gal (1.51 l) — Starting 2026 Model Year
Cooling System	10.30 gal (38.99 l) — Starting 2026 Model Year
Diesel Exhaust Fluid Tank (Tier 4 Only)	3.20 gal (12.11 l) — Starting 2026 Model Year
Engine Crankcase	2.00 gal (7.57 l) — Starting 2026 Model Year
Fuel Tank	71.00 gal (268.74 l) — Starting 2026 Model Year
Hydraulic System	11.90 gal (45.04 l) — Starting 2026 Model Year
Transmission	4.00 gal (15.14 l) — Starting 2026 Model Year

Sustainability

Caterpillar 120 GC Motor Grader Sustainability specifications
Recyclability	92% — Starting 2026 Model Year

Weights

Caterpillar 120 GC Motor Grader Weights specifications
Operating Weight - Typically Equipped	31,958.00 lbs (14,495.92 kg) — Starting 2026 Model Year
Operating Weight - Typically Equipped - Front Axle	8,708.00 lbs (3,949.89 kg) — Starting 2026 Model Year
Operating Weight - Typically Equipped - Rear Axle	23,250.00 lbs (10,546.04 kg) — Starting 2026 Model Year

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