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M Series Motor Graders(Non Current)

Cat motor graders continue their reputation for offering world-class cab and controls, advanced electronics and hydraulics, and optimum productivity... to match your needs in any application.

160H Standard Motor Grader

The 160H Standard blends productivity and durabiliy to give you the best return on your investment. The Cat 3306 engine, direct-drive power shift transmission and load-sensing hydraulics are designed to work together to deliver top productivity in all applications.

  • Specification Summary

  • Engine Model Cat 3306 T
  • VHP - Gears 4-8, Net 149 kW
  • VHP - Gears 1-3, Gross 150 kW
  • VHP - Gears 4-8, Gross 165 kW

Product Details


Engine Model Cat 3306 T
VHP - Gears 4-8, Net 149 kW
VHP - Gears 1-3, Gross 150 kW
VHP - Gears 4-8, Gross 165 kW
Bore 121 mm
Stroke 152 mm
Maximum Torque 975 N·m
Torque Rise 335
Base Power (All Gears) - Net 134 kW
Displacement 10.45 l
VHP - Gears 1-3, Net 134 kW
Number of Cylinders 6

Power Train

Forward/Reverse Gears 8 Fwd/ 6 Rev
Transmission Direct Drive, Power Shift
Brakes - Service Air Activated, Oil-Disc
Brakes - Service - Surface Area 23948 cm²
Brakes - Parking Multiple Oil-Disc Unit
Brakes - Secondary Seperate Circuits to Right and Left Tandems

Hydraulic System

Circuit Type Load Sensing, Pressure Compensation
Pump Type Variable-Displacement and Piston Pump
Pump Output 155 l/min
Maximum System Pressure 24150 kPa
Standby Pressure 3100 kPa

Operating Specifications

Top Speed - Forward 40.7 km/h
Top Speed - Reverse 32.1 km/h
Turning Radius - Outside Front Tires 7.4 m
Steering Range - Left/Right 50°
Articulation Angle - Left/Right 20°
Forward - 1st 3.5 km/h
Forward - 2nd 4.8 km/h
Forward - 3rd 7 km/h
Forward - 4th 9.6 km/h
Forward - 5th 15 km/h
Forward - 6th 20.3 km/h
Forward - 7th 28 km/h
Forward - 8th 40.7 km/h
Reverse - 1st 2.8 km/h
Reverse - 2nd 5.2 km/h
Reverse - 3rd 7.6 km/h
Reverse - 4th 11.8 km/h
Reverse - 5th 22.3 km/h
Reverse - 6th 32.1 km/h

Service Refill

Fuel Capacity 341 l
Cooling System 40 l
Hydraulic System - Total 80 l
Hydraulic System - Tank 38 l
Engine Oil 27 l
Transmission - Differential - Final Drives 47 l
Tandem Housing - Each 80 l
Front Wheel Spindle Bearing Housing 0.5 l
Circle Drive Housing 7 l


Circle - Diameter 1553 mm
Circle - Blade Beam Thickness 40 mm
Drawbar - Height 127 mm
Front-Top/Bottom Plate - Width 305 mm
Front-Top/Bottom Plate - Thickness 25 mm
Front-Side Plates - Width 242 mm
Front-Side Plates - Thickness 12 mm
Front-Linear Weights - Minimum 165 kg/m
Front-Linear Weights - Maximum 213 kg/m
Front-Section Modulus - Minimum 2083 cm³
Front-Section Modulus - Maximum 4785 cm³
Front Axle - Height to Center 625 mm
Front Axle - Wheel Lean - Left/Right 18°
Front Axle - Total Oscillation per Side 32°


Height 572 mm
Width 201 mm
Sidewall Thickness - Inner 16 mm
Sidewall Thickness - Outer 18 mm
Drive Chain Pitch 51 mm
Wheel Axle Spacing 1522 mm
Tandem Oscillation - Front Up 15°
Tandem Oscillation - Front Down 25°


Blade Width 4.267 m
Moldboard - Height 686 mm
Moldboard - Thickness 25 mm
Arc Radius 413 mm
Throat Clearance 90 mm
Cutting Edge Width 203 mm
Cutting Edge Thickness 16 mm
End Bit - Width 203 mm
End Bit - Thickness 16 mm

Blade Range

Circle Centershift - Right 540 mm
Circle Centershift - Left 700 mm
Moldboard Sideshift - Right 660 mm
Moldboard Sideshift - Left 660 mm
Blade Tip Range - Forward 40°
Blade Tip Range - Backward
Maximum Shoulder Reach Outside of Tires - Right 1791 mm
Maximum Shoulder Reach Outside of Tires - Left 1977 mm
Maximum Lift Above Ground 452 mm
Maximum Depth of Cut 770 mm


Ripping Depth - Maximum 462 mm
Ripper Shank Holders 5
Shank Holder Spacing - Maximum 533 mm
Penetration Force 8518 kg
Pry-Out Force 9281 kg
Machine Length Increase, Beam Raised 970 mm


Front, V-Type - Scarifier Shank Holder Spacing 116 mm
Front, V-Type - Scarifying Depth, Maximum 292 mm
Front, V-Type - Working Width 1184 mm
Front, V-Type - Scarifier Shank Holders 11
Rear - Working Width 2300 mm
Rear - Scarifier Shank Holders 9
Rear - Scarifier Shank Holder Spacing 267 mm


Gross Vehicle Weight - Maximum - Front Axle 4527 kg
Gross Vehicle Weight - Maximum - Rear Axle 10997 kg
Gross Vehicle Weight - Base - Front Axle 4190 kg
Gross Vehicle Weight - Base - Rear Axle 10266 kg
Gross Vehicle Weight - Maximum - Total 15524 kg
Gross Vehicle Weight - Base - Total 14416 kg


Height - Top of Cab 3120 mm
Height - High Profile Cab 3345 mm
Length - Counterweight to Ripper 10012 mm
Width - Outside Front Tires 2464 mm
Length - Front Axle to Mid Tandem 6086 mm
Length - Front Tire to Rear of Machine 8487 mm
Length - Front Axle to Moldboard 2518 mm
Length - Between Tandem Axles 1523 mm
Width - Outside Rear Tires 2442 mm
Width - Tire Center Lines 2077 mm

Power Train

Matched Caterpillar components deliver smooth, responsive performance and reliability.

Cat 3306 Engine

The Cat 3306 continues its tradition of powerful, efficient performance and unmatched reliability and durability. The six-cylinder engine is naturally aspirated with a high displacement-to-power ratio.


High torque output and high torque rise make the 3116 engine very responsive.

Fuel Efficiency

High fuel injection pressures ensure proper mixing of fuel and air.

Extended Engine Life

The large bore-stroke design and conservative power rating help minimize internal stresses and increase component life.

Electronic Overspeed Protection

Electronic overspeed protection helps prevent engine and transmission damage from premature downshifting and grade-induced overspeeding.

Power Shift Transmission

Caterpillar designs and builds transmissions specifically for Cat motor graders.

Direct Drive

Direct drive delivers superior fuel efficiency and better "feel" of blade loads, material hardness and ground speed.

Gear Selections

Eight forward speeds and six reverse speeds give the operator a wide operating range.

Electronic Transmissions Control

Electronic transmissions control produces easy, smooth shifts, which enable the operator to maintain uniform surfaces if shifting is required.

Inching Capability

Low pedal effort and excellent modulation provide precise control of machine movements when using the inching pedal.

Dual Air System

The dual air system supplies braking capacity to each side of the machine.

Oil Disk Brakes

Caterpillar designs and builds multi-disc brakes that are completely sealed and adjustment-free.

Engine Power Management

Engine power management delivers full-rated net power.


Balanced hydraulics deliver consistent, precise and responsive control.

Power On Demand

Normally, the variable displacement pump idles at near-zero output.

Implement Control Valves

Implement control valves are designed and built by Caterpillar specifically for motor graders.

Low Operator Effort

Implement controls are designed to reduce operator fatigue.

Balanced Flow

When the operator uses several controls at one time, flow is proportioned to ensure all implements can operate simultaneously. If hydraulic demand exceeds pump capacity, cylinder velocities will be reduced by the same ratio.

Independent Oil Supply

Large independent oil supply prevents cross-contamination and provides proper oil cooling, which means less heat build-up and extended component life.

Drawbar, Circle & Moldboard

Every component is designed for maximum productivity and durability. The blade linkage design maximizes moldboard positioning.

Blade Positioning

The blade linkage design enhances moldboard positioning.

Blade Angle

A long wheel base allows the operator to obtain an aggressive moldboard angle.

Rugged Construction

The Y-frame drawbar is constructed of two solid beams.

Replaceable Wear Items

Tough, durable nylon composite wear inserts are located between the drawbar and circle, and between the support shoes and circle.

Circle Drive Slip Clutch

The circle drive slip clutch protects the drawbar, circle and moldboard from shock when the end of the blade encounters hidden objects.

Operator's Station

Caterpillar sets the standard for comfort, convenience and visibility.


Exceptional visibility helps improve operator confidence and productivity in all grader applications.

Quiet Cab

With the doors closed, interior sound level stays low. The quiet environment keeps the operator alert and focused.

Reduced Strain and Fatigue

Low efforts on all pedals, hydraulic controls and the transmission shifter reduce operator strain and fatigue.

Roomy Interior

Extra leg and foot room create a spacious, open cab.

Contour Series Suspension Seat

The optional contour series suspension seat features fold-up armrests and a retractable seat belt.


The optional heater arrangement creates a comfortable work environment for the operator.

Electronic Monitoring System

The electronic monitoring system checks important machine systems and provides the operator with three levels of warning.

Features of Comfort

Comfort and convenience are designed into every feature.


Conveniently placed service points make routine maintenance quick and easy.


Easy access to service areas speeds up maintenance and ensures that routine service is performed on time.

Power Train Components

Power train components feature a modular design so you can remove the engine, transmission or final drives independently for quick servicing.

Diagnostic Capability

Diagnostic capability offers fast servicing of the transmission.

XT Hose

Caterpillar designs and manufactures its own heavy-duty XT hose and installs it in all high-pressure circuits. It's resistance to abrasion, coupled with its exceptional strength and flexibility, help minimize maintenance and extend life.

O-Ring Face Seals

O-ring face seals create a reliable seal and are used in all hydraulic circuits to minimize the possibility of oil leaks.

Radiator Cleanout Access

Removable covers on each side of the radiator guard provide access to the front of the radiator for cleanout with compressed air or pressure washer.

Extended Life Coolant (ELC)

Extended Life Coolant (ELC) extends coolant life. A single addition of ELC Extender is the only maintenance required.

Separate Wiring Harnesses

Separate wiring harnesses connect all electrical components.

Environmentally Responsible Design

Caterpillar builds machines that help you create a better world.

Quiet Cab

The cab is sound suppressed. The resiliently mounted engine and transmission result in less engine noise and vibration to the operator.

Dry Machine

Lubricant fill points and filters are designed to minimize spillage. O-ring face seals, XT hose and Cat hydraulic cylinders protect against leaks.

Complete Customer Support

Caterpillar dealer services help you operate longer with lower costs.


Make detailed comparisons of the machines you are considering before you buy.


Look past the initial price. Consider the financing options available as well as day-to-day operating costs and dealer services.


Improving operating techniques can boost your profits.


More and more equipment buyers are planning for effective maintenance before buying equipment.

Product Support

You will find nearly all parts at our dealer parts counter.


Repair, rebuild or replace? Your Cat dealer can help you evaluate the costs involved so you can make the right choice.

Have a Question?


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