Engine

Base Power (all gears) Net	134 kW
VHP - gears 4-8 Net	149 kW
VHP - gears 1-3 Gross	150 kW
VHP - gears 4-8 Gross	165 kW
Engine Model	3306 TA
Flywheel Power - Net	134 kW
Displacement	10.45 L
Bore	121 mm
Stroke	152 mm
Torque rise	33.5 %
Speed @ rated power	1900 RPM
Number of cylinders	6
Derating altitude	9816 m
Flywheel Power - Variable	149 kW
VHP - gears 1-3 Net	134 kW

Weights

Gross Vehicle Weight - max	23539 kg
Operating Weight	16538 kg

Moldboard

Blade Width	4.3 m
Blade Height	686 mm
Blade 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

Operating Specifications

Top Speed - Fwd.	40.7 km/h
Top Speed - Rev.	32.1 km/h
Turning radius (outside front tires)	7.4 m
Fwd. 1st	3.5 km/h
Fwd. 2nd	4.8 km/h
Fwd. 3rd	7 km/h
Fwd. 4th	9.6 km/h
Fwd. 5th	15 km/h
Fwd. 6th	20.3 km/h
Fwd. 7th	28 km/h
Fwd. 8th	40.7 km/h
Rev. 1st	2.8 km/h
Rev. 2nd	5.2 km/h
Rev. 3rd	7.6 km/h
Rev. 4th	11.8 km/h
Rev. 5th	22.3 km/h
Rev. 6th	32.1 km/h

Service Refill

Fuel Tank	340 L
Cooling system	40 L
Hydraulic system - total	98 L
Hydraulic system - tank	38 L
Engine oil	27 L
Tandem housing (each)	80 L
Front wheel spindle bearing housing	0.5 L
Circle drive housing	7 L

Power Train

Forward/Reverse Gears	8 Forward / 6 Reverse
Transmission	Direct Driver, Power Shift
Brakes, Service	Air-actuated, Oil-disc
Brakes, Service - surface area	23948 cm2
Brakes, Parking	Multiple Oil-disc

Hydraulic System

Circuit type	Proportional Priority Pressure Compensated (PPPC)
Pump type	Variable-displacement Piston Pump
Pump output @ 2100 RPM	206 L/min
Maximum system pressure	24150 kPa
Reservoir tank capacity	38 L
Standby pressure	3100 kPa

Frame

Circle - diameter	1553 mm
Drawbar - height	127 mm
Drawbar - thickness	76 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 - min	165 kg/m
Front - linear weights - max	213 kg/m
Front - section modulus - min	2083 cm3
Front - section modulus - max	4785 cm3
Front axle - ground clearance	625 mm
Front axle - front wheel lean	18 Degrees
Front axle - oscillation angle	32 Degrees
Circle - blade beam thickness	40 mm

Blade Range

Circle centershift - right	881 mm
Circle centershift - left	848 mm
Moldboard sideshift - right	943 mm
Moldboard sideshift - left	851 mm
Maximum blade position angle	90 Degrees
Blade tip range (forward)	40 Degrees
Blade tip range (backward)	5 Degrees
Maximum shoulder reach outside of tires - right	2261 mm
Maximum shoulder reach outside of tires - left	2223 mm
Maximum lift above ground	452 mm
Maximum depth of cut	770 mm

Ripper

Ripping depth, maximum	462 mm
Ripper shank holders	5
Ripper shank holder spacing - min	533 mm
Ripper shank holder spacing - max	533 mm
Penetration force	8518 kg
Pryout force	9281 kg
Machine length increase, beam raised	970 mm

Scarifier

Front, V-Type: Working width	1184 mm
Front, V-Type: Scarifying depth, maximum	292 mm
Front, V-Type: Scarifier shank holders	11
Front, V-Type: Scarifier shank holder spacing	116 mm
Front, straight: Working width	1800 mm
Front, straight: Scarifying depth, maximum	317 mm
Front, straight: Scarifier shank holders	17
Front, straight: Scarifier shank holder spacing	111 mm
Rear: Working width	2300 mm
Rear: Ripping depth, maximum	411 mm
Rear: Scarifier shank holders	9
Rear: Scarifier shank holder spacing	267 mm

Tandems

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 - forward	15 Degrees
Tandem oscillation - reverse	25 Degrees

Dimensions

Height - low profile cab	3120 mm
Height - high profile cab	3345 mm
Length - counterweight to ripper	10012 mm
Width - outside front tires	2553 mm
Length - front axle to mid tandem	6086 mm
Length - front tire to end of rear frame	8604 mm
Length - front axle to moldboard	2518 mm
Length - between tandem axles	1523 mm
Width - outside rear tires	2456 mm
Width - tire center lines	2091 mm

All-Wheel Drive System

Pump output (2500 rpm, 35000 kPa)	175 L/min
Maximum operating pressure	35000 kPa
Minimum operating pressure	5500 kPa
Motor displacement - high	1650 cc/rev
Motor displacement - low	660 cc/rev

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.

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 Transmission Control

Electronic transmission 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 Disc Brakes

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

Variable Horsepower

Variable horsepower comes standard. When all-wheel drive is engaged, it delivers full power in all gears.

Optional Autoshift

Optional autoshift improves ease of operation and maximizes productivity by automatically shifting the transmission at optimal shift points.

Hydraulics

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.

Blade Float

Blade float is incorportated into the blade lift control valves.

All-Wheel Drive

All-wheel drive keeps productivity high by improving tractive effort in poor underfoot conditions.

Superior Traction

All-wheel drive improves tractive performance in poor underfoot conditions such as snow, mud and sand.

More Power

The variable horsepower feature is standard on the 163H.

Wide Working Range

All-wheel drive is available in gears 1-7 forward and 1-5 reverse, making it effective in both low-speed and high-speed applications; from ditch cutting to snow winging.

Operating Modes

Three operating modes are available: automatic, manual or off. The operator selects the operating mode using a rocker switch on the transmission console.

Serviceability

Conveniently placed service points make routine maintenance quick and easy.

Maintenance

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.

Complete Customer Support

Caterpillar dealer services help you operate longer with lower costs.

Selection

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

Operation

Improving operating techniques can boost your profits.

Maintenance

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.

Replacement

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

Electrical

 Alarm, back-up

 Alternator, 50-amp, sealed

 Batteries, low-maintenace, 950 CCA (2)

 Battery box cover, lockable

 Electrical system, 24V

 Lights, stop and tail

 Motor, starting

Operator Environment

 Accelerator/decelerator

 Ashtray and lighter

 Coat hook

 Control console, adjustable

 Cupholder

 EMS, operator warning system

 Gauges

 Hydraulic controls, load-sensing

 Mirror, wide angle, inside rearview

 Power steering, hydraulic

 ROPS cab, sound-suppressed, 77 dB(A), low profile

 Seat, Caterpillar Contour Series, cloth-covered with suspension

 Seat belt, retractable, 3"

 Service hour meter

 Steering wheel, tilt adjustable

 Storage area, cooler/lunch box

 Throttle, hand

 Windows, fixed lower front

 Wipers and washers, windshield and lower front windows

Power Train

 Air cleaner, dry type, radial seal with service indicator

 Blower fan

 Brakes, oil-disc, four-wheel, air-actuated

 Differential, lockable

 Engine, 3306 DITA diesel with variable horsepower, low emissions

 Muffler, under hood

 Parking brake, multi-disc, sealed and oil-cooled

 Precleaner, automatic dust ejector

 Prescreener

 Priming pump, fuel

 Tandem drive

 Transmission, 8 speeds forward and 6 speeds in reverse, power shift, direct drive with electronic shift control and overspeed protection

Air cleaner, dry type, radial seal with service indicator

Blower fan

Brakes, oil-disc, four-wheel, air-actuated

Differential, lockable

Engine, 3306 DITA diesel with variable horsepower, low emissions

Muffler, under hood

Parking brake, multi-disc, sealed and oil-cooled

Precleaner, automatic dust ejector

Prescreener

Priming pump, fuel

Tandem drive

Transmission, 8 speeds forward and 6 speeds in reverse, power shift, direct drive with electronic shift control and overspeed protection

Other Standard Equipment

 Bumper, rear, with hitch

 Cap locks for hydraulic tank, radiator access cover and fuel tank

 Circle drive slip clutch

 Cutting edges, 203 mm x 16 mm (8" x 5/8") curved DH-2 steel

 Doors, engine compartment, with locks

 Drawbar, six shoe with replaceable nylon composite wear strips

 End bits, 16 mm (5/8") DH-2 steel

 Frame, articulated, with safety lock

 Fuel tank, 341 liter (90 gallon)

 Horn, air

 Moldboard, 4267 mm x 686 mm x 25 mm (14' x 27" x 1")

 SOS ports, engine and hydraulic

 Tool box, with lock

Accumulators, blade lift

Air conditioner with heater and pressurizer

Air dryer

Alternator, 75-amp

Alternator, 100-amp

Autoshift transmission

Batteries, extreme duty, 1300 CCA

Blade, 4877 mm x 688 mm x 25 mm (16 ft x 27 in x 1 in)

Cab, ROPS, high profile, sound suppressed

Canopy, ROPS, high profile, with rear wall and window

Converter, 25-amp, 24V to 12V

Covers, louver

Cutting edges, 203 mm x 19 mm (8 in x 3/4 in)

Endbits, overlay, reversible

Ether starting aid

Extensions, blade, 610 mm (2 ft)

Fan, defroster, front and rear

Fan, reversible, with rear grill cover

Fuel tank, 454 liter (120 gallon)

Graderbit system, standard bit type

Guard, lower platform

Guard, transmission

Heater, engine coolant

Heater, with pressurizer

Hydraulic arrangements with one or more additional hydraulic valves are available for front scarifier, rear ripper-scarifier, dozer, dozer angle, snow plow and snow wing

Instrument panel cover, canopy

Lighting systems

 Bar mounted lights, directional and headlights

 Cab mounted lights, directional and headlights

 Cab and bar mounted lights, directional, headlights and work lights

 Work lights, front and rear

 Snow wing light, right

 Warning light, cab or canopy mounted

Mirrors, dual, inside mounted

Mirrors, outside mounted

Power port, 12V

Protection, tire chain

Push plate, front mounted

Radio ready, entertainment

Ripper, shank/tooth, one

Ripper-scarifier, rear

Scarifier, front mounted, V-type

Scarifier, front mounted, straight type

Scarifier, shanks/teeth, nine

Seat, Caterpillar Contour Series, vinyl-covered with suspension

Snow arrangements

Speedometer/tachometer

Steering system, secondary

Sunshade, rear window

Windows, lower front, opening

Windows, sliding side

WIper and washer, rear