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Caterpillar 143H Motor Grader

The 143H blends productivity and durability to give you the best return on your investment.

Overview &
Specifications

Features
& Benefits

Standard
Equipment

Optional
Equipment

Work Tools &
Attachments

Engine

Base Power (all gears) Net	165 hp / 123 kW

VHP - gears 4-8 Net	185 hp / 138 kW

VHP Plus - gears 1-3 Net	165 hp / 123 kW

VHP Plus - gears 4-6 Net	185 hp / 138 kW

VHP Plus - gears 7-8 Net	205 hp / 153 kW

VHP - gears 1-3 Gross	182 hp / 136 kW

VHP - gears 4-8 Gross	202 hp / 151 kW

Engine Model	Cat® 3176C DITA ATAAC VHP

VHP Plus - gears 1-3 Gross	182 hp / 136 kW

VHP Plus - gears 4-6 Gross	202 hp / 151 kW

VHP Plus - gears 7-8 Gross	222 hp / 166 kW

VHP AWD on - gears 1-3 Gross	202 hp / 151 kW

VHP AWD on - gears 4-8 Gross	222 hp / 166 kW

VHP Plus AWD on - gears 1-3 Gross	202 hp / 151 kW

VHP Plus AWD on - gears 4-6 Gross	222 hp / 166 kW

VHP Plus AWD on - gears 7-8 Gross	242 hp / 180 kW

Flywheel Power - Net	165 hp / 123.04 kW

Displacement	629 in3 / 10.3 L

Bore	4.9 in / 125 mm

Stroke	5.5 in / 140 mm

Torque rise	50 % / 50 %

Max torque @ 1000 RPM	808 lb ft / 1095 N·m

Speed @ rated power	2000 RPM / 2000 RPM

Number of cylinders	6

Derating altitude	10000 ft / 3048 m

Std - Fan speed - max	1350 RPM / 1350 RPM

Std - Fan speed - min	500 RPM / 500 RPM

Std - Ambient Capability	117 ° F / 47 ° C

Flywheel Power - Variable	165.07 hp / 123.09 kW

VHP - gears 1-3 Net	165 hp / 123 kW

Weights

Gross Vehicle Weight - base	33670 lb / 15270 kg

Gross Vehicle Weight - max	48863 lb / 22146 kg

Gross Vehicle Weight, max front axles	17443 lb / 7906 kg

Gross Vehicle Weight, max rear axles	31420 lb / 14240 kg

Gross Vehicle Weight, base front axles	9493 lb / 4305 kg

Gross Vehicle Weight, base rear axles	24177 lb / 10965 kg

Operating Weight	33670 lb / 15270 kg

Moldboard

Blade Width	12 ft / 3.658 m

Blade Height	24 in / 610 mm

Blade Thickness	.87 in / 22 mm

Arc radius	16.25 in / 413 mm

Throat clearance	4.7 in / 120 mm

Cutting edge - width	6 in / 152 mm

Cutting edge - thickness	.63 in / 16 mm

End Bit - width	6 in / 152 mm

End Bit - thickness	.63 in / 16 mm

Blade Pull - max GVW	43977 lb / 19931 kg

Blade Pull - base GVW	30303 lb / 13743 kg

Down Pressure - max GVW	30126 lb / 13665 kg

Down Pressure - base GVW	16400 lb / 7441 kg

Operating Specifications

Top Speed - Fwd.	27.4 mph / 44 km/h

Top Speed - Rev.	21.6 mph / 34.7 km/h

Turning radius (outside front tires)	24.6 ft / 7.5 m

Steering Range - left/right	50°

Articulation Angle - left/right	20°

Fwd. 1st	2.3 mph / 3.8 km/h

Fwd. 2nd	3.2 mph / 5.1 km/h

Fwd. 3rd	4.6 mph / 7.4 km/h

Fwd. 4th	6.4 mph / 10.3 km/h

Fwd. 5th	10 mph / 16.2 km/h

Fwd. 6th	13.7 mph / 22 km/h

Fwd. 7th	18.8 mph / 30.3 km/h

Fwd. 8th	27.4 mph / 44 km/h

Rev. 1st	1.8 mph / 3 km/h

Rev. 2nd	3.5 mph / 5.6 km/h

Rev. 3rd	5 mph / 8.1 km/h

Rev. 4th	7.9 mph / 12.8 km/h

Rev. 5th	14.8 mph / 23.9 km/h

Rev. 6th	21.6 mph / 34.7 km/h

Service Refill

Fuel Tank	105 gal / 397 L

Cooling system	10 gal / 38 L

Hydraulic system - total	20.8 gal / 80 L

Hydraulic system - tank	9.9 gal / 38 L

Engine oil	10.2 gal / 39 L

Differential / Final Drives	12.4 gal / 47 L

Tandem housing (each)	16.9 gal / 64 L

Front wheel spindle bearing housing	.13 gal / .5 L

Circle drive housing	1.8 gal / 7 L

Power Train

Forward/Reverse Gears	8 fwd/6 rev

Transmission	Direct drive, power shift

Brakes, Service	air-actuated, oil-disc

Brakes, Service - surface area	3712 in2 / 23948 cm2

Brakes, Parking	manual, multiple oil-disc

Brakes, Secondary	air actuated, oil-disc

Hydraulic System

Circuit type	Closed center load sense

Pump type	Axial piston

Pump output @ 2100 RPM	54.4 gal/min / 206 L/min

Maximum system pressure	3500 psi / 24150 kPa

Reservoir tank capacity	9.9 gal / 38 L

Standby pressure	450 psi / 3100 kPa

Frame

Circle - diameter	60.2 in / 1530 mm

Drawbar - height	5 in / 127 mm

Drawbar - thickness	3 in / 76 mm

Front - top/bottom plate - width	12 in / 305 mm

Front - top/bottom plate - thickness	1 in / 25 mm

Front - side plates - width	9.5 in / 241 mm

Front - side plates - thickness	.5 in / 12 mm

Front - linear weights - min	112 lb/ft / 165 kg/m

Front - linear weights - max	144 lb/ft / 213 kg/m

Front - section modulus - min	127 in3 / 2083 cm3

Front - section modulus - max	291 in3 / 4785 cm3

Front axle - ground clearance	24.6 in / 625 mm

Front axle - front wheel lean	18 Degrees / 18 Degrees

Front axle - oscillation angle	32 Degrees / 32 Degrees

Circle - blade beam thickness	1.2 in / 30 mm

Blade Range

Circle centershift - right	28.7 in / 728 mm

Circle centershift - left	27.4 in / 695 mm

Moldboard sideshift - right	26 in / 660 mm

Moldboard sideshift - left	20.6 in / 524 mm

Maximum blade position angle	90 Degrees / 90 Degrees

Blade tip range (forward)	40 Degrees / 40 Degrees

Blade tip range (backward)	5 Degrees / 5 Degrees

Maximum shoulder reach outside of tires - right	77.9 in / 1978 mm

Maximum shoulder reach outside of tires - left	74.6 in / 1896 mm

Maximum lift above ground	18.9 in / 480 mm

Maximum depth of cut	28.1 in / 715 mm

Ripper

Ripping depth, maximum	18.2 in / 462 mm

Ripper shank holders	5

Ripper shank holder spacing - min	21 in / 533 mm

Penetration force	17740 lb / 8047 kg

Pryout force	20460 lb / 9281 kg

Machine length increase, beam raised	38.2 in / 970 mm

Scarifier

Front, V-Type: Working width	46.6 in / 1184 mm

Front, V-Type: Scarifying depth, maximum	11.5 in / 292 mm

Front, V-Type: Scarifier shank holders	11

Front, V-Type: Scarifier shank holder spacing	4.6 in / 116 mm

Front, straight: Working width	71 in / 1800 mm

Front, straight: Scarifying depth, maximum	12.5 in / 317 mm

Front, straight: Scarifier shank holders	17

Front, straight: Scarifier shank holder spacing	4.38 in / 111 mm

Rear: Working width	91 in / 2300 mm

Rear: Ripping depth, maximum	16.2 in / 411 mm

Rear: Scarifier shank holders	9

Rear: Scarifier shank holder spacing	10.5 in / 267 mm

Tandems

Height	22.5 in / 572 mm

Width	7.9 in / 201 mm

Sidewall thickness - inner	.63 in / 16 mm

Sidewall thickness - outer	.71 in / 18 mm

Drive chain pitch	2 in / 51 mm

Wheel axle spacing	60 in / 1522 mm

Tandem oscillation - forward	15 Degrees / 15 Degrees

Tandem oscillation - reverse	25 Degrees / 25 Degrees

Dimensions

Height - low profile cab	123 in / 3131 mm

Height - high profile cab	132 in / 3356 mm

Height - no cab	122.2 in / 3103 mm

Length - counterweight to ripper	398 in / 10097 mm

Width - outside front tires	100.5 in / 2553 mm

Length - front axle to mid tandem	242.9 in / 6169 mm

Length - front tire to end of rear frame	343 in / 8713 mm

Length - front axle to moldboard	100.8 in / 2561 mm

Length - between tandem axles	60 in / 1523 mm

Width - outside rear tires	96.7 in / 2457 mm

Width - tire center lines	82.3 in / 2091 mm

Height to axle	23.6 in / 600 mm

Height to exhaust stack	122.2 in / 3103 mm

Height to top of cylinders	119.2 in / 3028 mm

Ground clearance at trans. case	13.5 in / 344 mm

All-Wheel Drive System

Pump output (2500 rpm, 35000 kPa)	46.2 gal/min / 175 L/min

Maximum operating pressure	5080 psi / 35000 kPa

Minimum operating pressure	800 psi / 5500 kPa

Motor displacement - high	100.7 in3/rev / 1650 cc/rev

Motor displacement - low	40.2 in3/rev / 660 cc/rev

INDIANA'S LEADING EQUIPMENT DEALER

MacAllister Machinery has 14 convenient locations throughout Indiana: Beech Grove, Bloomington, Fishers, Fort Wayne, Greensburg, Indianapolis (HQ, Power Systems), Indianapolis (West), Lafayette, Muncie, Richmond, South Bend, Terre Haute, and Washington.

Headquarters: 7515 E 30th St, Indianapolis, IN 46219
Phone: (317) 545-2151 In-State Toll Free: (800) 382-1896 Out of State Toll Free: (800) 227-3228