New CAT Equipment

844 Wheel Dozer

Mobile. Agile. Versatile.

Cat Wheel Dozers are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton. Engineered for your demanding work in large dozing applications, the 844 Wheel Dozer is the largest in the Cat Wheel Dozer line and is an ideal match for large mining operations, power generating utilities, the general contracting industry and wherever mobility, versatility and compaction is needed.

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    Benefits

    IMPROVED EFFICIENCY

    Lock-up torque converter, combined with an on-demand cooling fan and advanced engine idle management, delivers a more smooth shift

    ENHANCED MAINTENANCE

    Service access is conveniently located, helping to reduce maintenance time

    ADDITIONAL SAFETY

    Grouped, ground level engine and machine controls allow for safe and easy daily maintenance

    UP TO 18% LESS CO2 EMISSIONS

    The 844 emits up to 18% less CO2 than the previous 844H.

    Learn more about the 844 Wheel Dozer

    Watch

    • Air Conditioning System
      Air Conditioning
      The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.
    • Axles
      Front
      Fixed
      Oscillation Angle
      8.5 °
      Rear
      Trunnion
    • Brakes
      Brakes
      Meets ISO 3540:2011
    • Cab
      ROPS/FOPS
      ISO 3471:2008 and ISO 3449:2005 Level II Standards
    • Dimensions (Approximate)
      Centerline of Front Axle to Hitch
      7.5 ft
      Centerline of Rear Axle to Edge of Bumper
      12.5 ft
      Ground Clearance
      2 ft
      Height - Top of Exhaust Pipe
      16.6 ft
      Height - Top of Hood
      12.7 ft
      Height - Top of ROPS
      17.2 ft
      Length - With Blade on Ground
      36.5 ft
      Wheel Base
      15.1 ft
    • Engine
      Bore
      5.4 in
      Displacement
      1649.5 in³
      Emissions
      U.S. EPA Tier 4 Final and EU Stage V or China Nonroad Stage III Emissions standards, equivalent to U.S. EPA Tier 2
      Engine Model
      C27 Cat®
      Gross Power - ISO 14396
      752 HP
      Gross Power - SAE J1995
      766 HP
      Net Power - SAE J1349 - High Ambient
      648 HP
      Net Power - SAE J1349 - Standard Ambient
      699 HP
      Peak Torque - Speed
      2624 lb/ft
      Rated Speed
      1800 r/min
      Stroke
      6 in
      Torque Rise
      18 %
    • Hydraulic System - Lift/Tilt
      Cylinder, Double Acting - Tilt and Tip, Bore and Stroke
      210 mm × 188 mm (8.25 in × 7.4 in)
      Cylinders, Double Acting - Lift, Bore and Stroke
      133 mm × 1535 mm (5.25 in × 60.4 in)
      Output at 2,000 rpm and 6900 kPa (1,000 psi)
      82 gal/min
      Relief Valve Setting - Bulldozer (Large Pump)
      2700 psi
      Relief Valve Setting - Tilt Cylinders (Small Pump)
      2920 psi
    • Hydraulic System - Steering
      Maximum Flow
      94.3 gal/min
      Minimum Turning Radius - Over Blade
      34 ft
      Relief Valve Setting
      4500 psi
      Steering System - Circuit
      Pilot, load sensing
      Steering System - Pump
      Piston, variable displacement
      Total Steering Angle
      35 °
    • Operating Specifications
      Blade Capacities
      15.9 - 30.7 m3 (20.7 - 40.2 yd3)
      Operating Weight
      165089 lb
    • Service Refill Capacities
      Cooling System
      54.9 gal (US)
      Crankcase
      20 gal (US)
      Differential - Final Drives - Front
      71.6 gal (US)
      Differential - Final Drives - Rear
      68.9 gal (US)
      Fuel Tank - Standard
      286.6 gal (US)
      Hydraulic System - Implement and Hydraulic Fan
      68.9 gal (US)
      Hydraulic System - Steering and Braking
      34.9 gal (US)
      Transmission
      29.1 gal (US)
    • Sound Performance - Standard
      Machine Sound Level (ISO 6395:2008)
      115 dB(A)
      Operator Sound Level (ISO 6396:2008)
      69 dB(A)
    • Sound Performance - Suppression
      Machine Sound Level (ISO 6395:2008)
      113 dB(A)
      Operator Sound Level (ISO 6396:2008)
      69 dB(A)
    • Transmission
      Converter Drive - Forward 1
      4.5 mile/h
      Converter Drive - Forward 2
      8.3 mile/h
      Converter Drive - Forward 3
      14.2 mile/h
      Converter Drive - Reverse 1
      4.9 mile/h
      Converter Drive - Reverse 2
      9.1 mile/h
      Converter Drive - Reverse 3
      15.5 mile/h
      Direct Drive - Forward 1
      Lock-up disabled
      Direct Drive - Forward 2
      8.5 mile/h
      Direct Drive - Forward 3
      15.2 mile/h
      Direct Drive - Reverse 1
      5.4 mile/h
      Direct Drive - Reverse 2
      9.6 mile/h
      Direct Drive - Reverse 3
      16.4 mile/h
      Transmission Type
      Cat Planetary Power Shift
    NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    OPERATOR ENVIRONMENT
    • Air conditioner and heater with automatic temperature control
    • Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS), radio ready for (entertainment) includes antenna, speakers and converter (12V, 10-15 amp)
    • 12V power port for mobile phone or laptop connection
    • Cigar lighter and ashtray
    • Coat hook
    • Electro-hydraulic blade controls (joystick)
    • Flip-up armrest
    • Heater and defroster
    • Horn, electric
    • Instrumentation, gauges: - Engine coolant temperature - Fuel level - Ground speed - Gear - Hydraulic oil temperature - Speedometer/tachometer - Torque converter temperature
    • 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
    • Keypad, control with indicator lights: - Auto trans mode speed range - Auto/manual transmission mode - Lockup clutch - Reduced rimpull - Throttle lock
    • Light, dome (cab)
    • Lunchbox and beverage holders
    • Mirrors, rearview (externally mounted)
    • 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
    • STIC control system with steering lock
    • Tinted glass
    • Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
    • Converter (12V, 10/15 amp) and power port
    POWER TRAIN
    • Brakes, oil cooled, multi-disc, service/secondary
    • Axle-shaft oil-disc service brake
    • Electro hydraulic parking brake
    • Cat clean emission module (Tier 4 only)
    • Demand fan
    • Engine Cat C27
    • Fuel priming pump (electric)
    • Ground level engine shutoff
    • Mufflers (under hood) (Tier 2 only)
    • Precleaner, engine air intake
    • Radiator, Aluminum Modular (AMR)
    • Separated cooling system
    • Starting aid, (ether) automatic
    • Throttle Lock electronic
    • Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
    • Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
    ELECTRICAL
    • Alternator, 150 amp
    • Batteries, maintenance free (4 - 1,400 CCA)
    • Deutsch terminal connectors
    • Electrical system, 24V
    • Electronic transmission control
    • Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
    • Starting and charging system, 24V
    • Starter lockout in bumper
    • Starting receptacle for emergency start
    • Transmission lockout in bumper
    SERVICE
    • Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles
    • Case drain filters
    • Coupling, Caterpillar O-ring face seals
    • Guards, crankcase and power train
    • Hitch, drawbar with pin
    • Hoses, Cat XT
    • Oil sampling valves
    • Product Link
    SAFETY
    • Camera, rear vision
    • Implement lockout switch
    • Seat belt, retractable, 76 mm (3 in) wide
    • Trainer seat with lap belt
    • Alarm, back-up
    • Emergency platform egress
    • Stairway, left and right rear access
    • Steering, secondary
    • Toe kicks
    TRAMMING
    • Fenders, steel (front)
    OTHER
    • Axle temperature sensor
    • Battery disconnect and jump start receptacle, bumper
    • Economy mode with on demand throttle
    • Engine, crankcase, 500 hour interval with CH4
    • Engine idle management features: - Auto idle kickdown - Delayed engine shutdown - Engine idle shutdown
    • Grouped/labeled lube points
    • Positive flow control hydraulic system
    • Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
    • Steering, load sensing
    • Vandalism protection caplocks
    • Premixed 50% concentration of extended life coolant with freeze protection to -34° C (-29° F)
    NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    POWER TRAIN
    • 50° C (-58° F) antifreeze
    • Engine oil change system, high speed, Wiggins
    • Engine block heater 120V or 240V
    • High ambient cooling - software
    BLADES
    • Semi-U - 17.8 m3 (23.3 yd3)
    • HD Semi-U - 16.1 m3 (21.1 yd3)
    • Coal - 30.7 m3 (40.2 yd3)
    OPERATOR ENVIRONMENT
    • Cab precleaner
    • AM/FM/MP3 radio
    • Satellite Sirius radio with Bluetooth
    • LED warning strobe
    • CB radio ready
    • Window sun shade
    TRAMMING
    • Front and rear roading fenders
    MISCELLANEOUS ATTACHMENTS
    • Fast fill fuel system (Shaw-Aero)
    • Axle oscillation stop
    • Paint, black blade rear
    OTHER
    • Venturi stack