The Caterpillar 163H All-Wheel Drive Motor Grader blends productivity and durability to give you the best return on your investment. The Cat 3306 engine, power shift transmission, load-sensing hydraulics and all-wheel drive system are designed to work together to deliver top productivity in all applications.
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