New CAT Equipment

844K Wheel Dozer

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 844K 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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    Product Specs

    Engine

    Engine Model C27 Cat®
    Gross Power 752 HP
    Bore 5.4 in
    Stroke 6 in
    Displacement 1649.5 in³
    Torque Rise 18 %
    Net Power - SAE J1349 - Standard Ambient 699 HP
    Net Power - SAE J1349 699 HP
    Gross Power - ISO 14396 752 HP
    Net Power - SAE J1349 - High Ambient 648 HP
    Peak Torque - Speed 2624 lb/ft
    Emissions U.S. EPA Tier 4 Final or Tier 2 Equivalent
    Rated Speed 1800 r/min
    Gross Power - SAE J1995 766 HP

    Weights

    Operating Weight 165089 lb

    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 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
    Direct Drive - Forward 1 Lock-up disabled

    Service Refill Capacities

    Fuel Tank - Standard 286.6 gal (US)
    Cooling System 54.9 gal (US)
    Crankcase 20 gal (US)
    Transmission 29.1 gal (US)
    Differential - Final Drives - Front 71.6 gal (US)
    Differential - Final Drives - Rear 68.9 gal (US)
    Hydraulic System - Implement and Hydraulic Fan 68.9 gal (US)
    Hydraulic System - Steering and Braking 34.9 gal (US)

    Cab

    Cab - ROPS/FOPS (1) Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
    Air Conditioning Standard air conditioning system contains environmentally friendly R134a refrigerant
    ROPS ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
    Cab - ROPS/FOPS (2) SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
    FOPS FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.

    Brakes

    Brakes Meets ISO 3540:2011

    Axles

    Front Fixed
    Rear Trunnion
    Oscillation Angle 8.5 °

    Blade

    Blade Capacity Range 15,9-30,7 m3 (20,7-40,2 yd.3)

    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)

    Hydraulic System - Lift/Tilt

    Relief Valve Setting - Tilt Cylinders (Small Pump) 2920 psi
    Output at 2,000 rpm and 6900 kPa (1,000 psi) 82 gal/min
    Cylinders, Double Acting - Lift, Bore and Stroke 133 mm × 1535 mm (5.25 in × 60.4 in)
    Relief Valve Setting - Bulldozer (Large Pump) 2700 psi
    Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm × 188 mm (8.25 in × 7.4 in)

    Hydraulic System - Steering

    Total Steering Angle 35 °
    Steering System - Circuit Pilot, load sensing
    Minimum Turning Radius - Over Blade 34 ft
    Relief Valve Setting 4500 psi
    Steering System - Pump Piston, variable displacement
    Maximum Flow 94.3 gal/min

    Dimensions (Approximate)

    Height - Top of Exhaust Pipe 16.6 ft
    Wheel Base 15.1 ft
    Length - With Blade on Ground 36.5 ft
    Centerline of Rear Axle to Edge of Bumper 12.5 ft
    Centerline of Front Axle to Hitch 7.5 ft
    Height - Top of ROPS 17.2 ft
    Ground Clearance 2 ft
    Height - Top of Hood 12.7 ft