844 Wheel Dozer

Mobile. Agile. Versatile.

Maximize productivity in mining applications with the Cat® 844 Wheel Dozer, designed with efficiency in mind. Enhanced maintenance capabilities and simplified serviceability make for a long lifecycle, low owning and operating costs, and more uptime. Move more material with a machine built for the toughest conditions.

Equipment Highlights

Long Term Value and Durability

Move More with Less Fuel

Safety First

Technology that Gets Work Done

Work In Comfort

Reduce Environmental Impact

Save on Service and Maintenance

Purpose-Built Cat Attachments

In-Stock at Hawthorne Cat

Features + Specs

Equipment Features

- - Alternator, 150 amp
- - Batteries, maintenance free (4 - 1,400 CCA)
- - Battery disconnect and jump start receptacle, bumper
- - Deutsch terminal connectors
- - Electrical system, 24V
- - Electronic transmission control
- - Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
- - Starter lockout in bumper
- - Starting and charging system, 24V
- - Transmission lockout in bumper
- - Brakes, oil cooled, multi-disc, service/secondary
- - Driveline parking brake
- - Engine Cat C27
- - Fuel priming pump (electric)
- - Ground level engine shutdown switch
- - Precleaner, engine air intake (above hood)
- - Radiator, Aluminum Modular (AMR)
- - Starting aid, (ether) automatic
- - Throttle Lock electronic
- - Torque Converter, Impeller clutch with lock-up clutch (ICTC) and rimpull control system
- - Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
- - Advisor display, displays real time operating information, performs calibrations and customizes operator setting
- - Air conditioner and heater with automatic temperature control
- - Air precleaner, powered
- - Cab, sound-suppressed pressurized, separate external rolloever protective structure/falling objects protective structure (ROPS/FOPS)
- - Cigar lighter and ashtray
- - Coat hook
- - Converter (12V, 10/15 amp) and power port
- - Electro-hydraulic blade controls (joystick)
- - Heater and defroster
- - Horn, electric
- - Instrumentation, gauges: - engine coolant temperature, fuel level, hydraulic oil temperature, powertrain oil temperature, tachometer
- - Instrumentation, warning indicators: - Action alert system, three category - Automatic transmission model enable status - Brake malfunction - Bucket float status - Delayed engine shutdown status - Engine idle shutdown status - Engine malfunction - Fuel economy mode enable status - Hydraulic lockout - Lockup clutch enable status - Low fuel level - Parking brake status - Rimpull control enable status - Seatbelt warning - Secondary steering (if equipped) - Throttle lock status - Transmission gear
- - Light, dome (cab)
- - Lunchbox and beverage holders
- - Seat, premium with heated and actively cooled leather, adjustable lumbar support, air adjustable bolsters on the seat and backrest, seat cushion tilt adjustment, and adjustable-length seat cushion
- - Radio, AM/FM with Bluetooth®, USB Port, 3.5 mm AUX input
- - Tinted glass
- - Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
- - Alarm, back-up
- - Camera, rear vision
- - Emergency platform exit
- - Implement lockout switch
- - Mirrors, rearview (externally mounted)
- - Seat belt, retractable, 76 mm (3 in) wide
- - Stairway, left and right rear access
- - Steering and transmission lock lever, cab
- - Steering, secondary
- - Seat, trainer with lap belt, 76 mm (3in) wide
- - Toe kicks
- - Axle ecology drains
- - Case drain filters
- - Coupling, Caterpillar O-ring face seals
- - Engine, crankcase, 500 hour interval with CH4
- - Front walkway around cab
- - Guards, crankcase and powertrain
- - Grouped/labeled lube points
- - Battery disconnect and jump start receptacle, bumper
- - Hitch, drawbar with pin
- - Hoses, Cat XT™
- - Oil sampling valves
- - Sight guages for steering, implement and transmission oil
- - Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles
- - Economy mode with on demand throttle
- - Positive flow control hydraulic system
- - Impeller Clutch Torque Converter (ICTC) with lock-up clutch
- - Steering, load sensing
- - Soft detent controls
- - Engine idle management features: - Auto idle kickdown - Delayed engine shutdown - Engine idle shutdown

Optional Equipment

ELECTRICAL AND LIGHTING
- - Lights, LED
- - Product Link (Cellular)
- - Product Link (Satellite)
POWERTRAIN
- - Engine brake
- - No-spin rear axle
- - No-spin rear axle and oil cooler
- - Precleaner, raised
OPERATOR ENVIRONMENT
- - Radio, Sirius XM/AM/FM radio with Bluetooth technology, USB port, 3.5 mm AUX input
- - Rubber mounted cab glass
- - Window sun screen
BLADES
- - HD Semi-U - 16.1 m3 (21.1 yd3)
- - Paint, black blade rear
COLD WEATHER
- - 50° C (-58° F) antifreeze
- - 120V or 240V coolant heating elements (recommended in conditions from -18°C to -30°C [0°F to -22°F]
- - -40°C (-40°F) Hydraulic Oil, Arctic

Specs

Engine ModelCat® C27
Net Power - SAE J1349:2011 - Standard Ambient732 hp
Rated Speed1800 r/min
EmissionsOption 1 - U.S. EPA Tier 4 Final / EU Stage V
Engine Power - ISO 14396:2002786 hp
Gross Power - SAE J1995:2014801 hp
Net Power - SAE J1349:2011 - High Ambient681 hp
EmissionsOption 2 - China Nonroad Stage III emissions standards, equivalent to U.S. EPA Tier 2
Engine Power - ISO 14396: 2002752 hp
Gross Power - SAE J1995:2014766 hp
Net Power - SAE J1349:2011 - Standard Ambient699 hp
Net Power - SAE J1349:2011 - High Ambient648 hp
Bore5.4 in
Stroke6 in
Displacement1649.5 in³
Peak Torque - Speed2624 lb/ft
Torque Rise18 %
NoteNet power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Transmission TypeCat Planetary Power Shift
Converter Drive - Forward 14.5 mile/h
Converter Drive - Forward 28.3 mile/h
Converter Drive - Forward 314.2 mile/h
Converter Drive - Reverse 14.9 mile/h
Converter Drive - Reverse 29.1 mile/h
Converter Drive - Reverse 315.5 mile/h
Direct Drive - Forward 1Lock-up disabled
Direct Drive - Forward 28.5 mile/h
Direct Drive - Forward 315.2 mile/h
Direct Drive - Reverse 15.4 mile/h
Direct Drive - Reverse 29.6 mile/h
Direct Drive - Reverse 316.4 mile/h
NoteTravel speeds based on 45/65-45 L-5 46 ply tires.
Air ConditioningThe 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. - If equipped with R134a (Global Warming Potential = 1430), the system contains 1.8 kg (3.9 lb) of refrigerant, which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).
Operator Sound Pressure Level (ISO 6396:2008)72 dB(A)
Machine Sound Power Level (ISO 6395:2008)116 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*72 dB(A)
Machine Sound Power Level (ISO 6395:2008)*114 dB(A)
Note (1)*Sound suppression equipped
Note (2)The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (3)The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (4)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Output at 2,000 rpm and 6900 kPa (1,000 psi)82 gpm
Cylinders, Double Acting - Lift, Bore and Stroke133 mm × 1535 mm (5.25 in × 60.4 in)
Cylinder, Double Acting - Tilt and Tip, Bore and Stroke210 mm × 188 mm (8.25 in × 7.4 in)
Relief Valve Setting - Bulldozer (Large Pump)2700 psi
Relief Valve Setting - Tilt Cylinders (Small Pump)2920 psi
Operator Sound Pressure Level (ISO 6396:2008)72 dB(A)
Machine Sound Power Level (ISO 6395:2008)116 dB(A)
Operator Sound Pressure Level (ISO 6396:2008)*72 dB(A)
Machine Sound Power Level (ISO 6395:2008)*114 dB(A)
Note (1)*Sound suppression equipped
Note (2)The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (3)The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (4)Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.

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844 Wheel Dozer

Mobile. Agile. Versatile.

Equipment Highlights

Long Term Value and Durability

Move More with Less Fuel

Safety First

Technology that Gets Work Done

Work In Comfort

Reduce Environmental Impact

Save on Service and Maintenance

Purpose-Built Cat Attachments

In-Stock at Hawthorne Cat

Features + Specs

Equipment Features

NOTE

ELECTRICAL AND LIGHTING

POWERTRAIN

OPERATOR ENVIRONMENT

SAFETY

SERVICE

COOLING

COLD WEATHER

EFFICIENCY

TRAMMING

Optional Equipment

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Specs

Cab

Axles

Brakes

Engine

Transmission

Air Conditioning System

Dimensions (Approximate)

Operating Specifications

Service Refill Capacities

Sound Performance - Tier 2

Hydraulic System - Steering

Hydraulic System - Lift/Tilt

Sound Performance - Tier 4 Final / Stage V

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Photo Gallery

See How Cat Stacks Up

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