Piscataway Campus
732-885-5555
Bensalem Campus
877-726-7663

Wheel Dozers

844K Wheel Dozer

  • Engine Model
    Cat® C27 ACERT™
  • Engine Model
    C27 Cat®
  • Gross Power
    752.0 hp
  • Gross Power
    752 HP
Engine
Engine Model
Cat® C27 ACERT™
Engine Model
C27 Cat®
Gross Power
752.0 hp
Gross Power
752 HP
Bore
5.4 in
Bore
5.4 in
Stroke
6.0 in
Stroke
6 in
Displacement
1649.5 in3
Displacement
1649.5 in³
Torque Rise
18.0 %
Torque Rise
18 %
Emissions
U.S. EPA Tier 4 Final or Tier 2 Equivalent
Gross Power
752.0 hp
Gross Power
766.0 hp
Net Power
699.0 hp
Net Power
648.0 hp
Net Power
699.0 hp
Peak Torque
2624.0 lb ft
Rated Speed
1800.0 RPM
Emissions
U.S. EPA Tier 4 Final or Tier 2 Equivalent
Gross Power
752 HP
Gross Power
766 HP
Net Power
699 HP
Net Power
648 HP
Net Power
699 HP
Peak Torque
2624 lb/ft
Rated Speed
1800 r/min
Weights
Operating Weight
165089.0 lb
Operating Weight
165089 lb
Transmission
Converter Drive
4.5 mph
Converter Drive
4.5 mile/h
Converter Drive
8.3 mph
Converter Drive
8.3 mile/h
Converter Drive
14.2 mph
Converter Drive
14.2 mile/h
Converter Drive
4.9 mph
Converter Drive
4.9 mile/h
Converter Drive
9.1 mph
Converter Drive
9.1 mile/h
Converter Drive
15.5 mph
Converter Drive
15.5 mile/h
Direct Drive
8.5 mph
Direct Drive
8.5 mile/h
Direct Drive
15.2 mph
Direct Drive
15.2 mile/h
Direct Drive
5.4 mph
Direct Drive
5.4 mile/h
Direct Drive
9.6 mph
Direct Drive
9.6 mile/h
Direct Drive
16.4 mph
Direct Drive
16.4 mile/h
Direct Drive
Lock-up disabled
Transmission Type
Cat Planetary Power Shift
Direct Drive
Lock-up disabled
Transmission Type
Cat Planetary Power Shift
Service Refill Capacities
Fuel Tank
286.6 gal
Fuel Tank
286.6 gal (US)
Cooling System
54.9 gal
Cooling System
54.9 gal (US)
Crankcase
20.0 gal
Crankcase
20 gal (US)
Transmission
29.1 gal
Transmission
29.1 gal (US)
Differentials and Final Drives
71.6 gal
Differential
71.6 gal (US)
Differentials and Final Drives
68.9 gal
Differential
68.9 gal (US)
Hydraulic System
68.9 gal (US)
Hydraulic System
34.9 gal (US)
Cab
Air Conditioning
Standard air conditioning system contains environmentally friendly R134a refrigerant
FOPS
FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
ROPS
ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
Cab
Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
Cab
SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
Air Conditioning
Standard air conditioning system contains environmentally friendly R134a refrigerant
FOPS
FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
ROPS
ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
Brakes
Brakes
Meets ISO 3540:2011
Brakes
Meets ISO 3540:2011
Axles
Front
Fixed
Front
Fixed
Rear
Trunnion
Rear
Trunnion
Oscillation Angle
8.5 Degrees
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
115.0 dB(A)
Operator Sound Level
69.0 dB(A)
Machine Sound Level
115 dB(A)
Operator Sound Level
69 dB(A)
Sound Performance - Suppression
Machine Sound Level
113.0 dB(A)
Operator Sound Level
69.0 dB(A)
Machine Sound Level
113 dB(A)
Operator Sound Level
69 dB(A)
Hydraulic System - Lift/Tilt
Cylinder
133 mm × 1535 mm (5.25 in × 60.4 in)
Cylinder
210 mm × 188 mm (8.25 in × 7.4 in)
Output at 2
82 gal/min
Relief Valve Setting
2700 psi
Relief Valve Setting
2920 psi
Cylinders
133 mm × 1535 mm (5.25 in × 60.4 in)
Hydraulic System - Steering
Maximum Flow
94.3 gal/min
Steering System
Pilot, load sensing
Steering System
Piston, variable displacement
Total Steering Angle
35.0 Degrees
Minimum Turning Radius
34 ft
Relief Valve Setting
4500 psi
Maximum Flow
94.3 gal/min
Steering System
Pilot, load sensing
Steering System
Piston, variable displacement
Total Steering Angle
35 °
Dimensions (Approximate)
Center Line of Front Axle to Hitch
7.5 ft
Center Line of Rear Axle to Edge of Bumper
12.5 ft
Ground Clearance
2.0 ft
Height to Top of Exhaust Pipe
16.6 ft
Height to Top of Hood
12.7 ft
Height to Top of ROPS
17.2 ft
Length with Blade on Ground
36.5 ft
Wheelbase
15.1 ft
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
16.6 ft
Height
12.7 ft
Height
17.2 ft
Length
36.5 ft
Wheel Base
15.1 ft
  • 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
    • Camera, rear vision
    • Cigar lighter and ashtray
    • Coat hook
    • Electro-hydraulic blade controls (seat mounted)
    • Flip-up armrest
    • Heater and defroster
    • Horn, electric
    • Implement hydraulic lockout
    • 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, Cat comfort (cloth) air suspension
    • Seat belt, retractable, 76 mm (3 in) wide
    • STIC control system with steering lock
    • Tinted glass
    • Trainer seat with lap belt
    • Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles
    • Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
  • POWER TRAIN
    • Brakes, full hydraulic, enclosed, oil-disc
    • Axle-shaft oil-disc service brake
    • Electro hydraulic parking brake
    • Case drain filters
    • Cat clean emission module (Tier 4 only)
    • Demand fan
    • Engine Cat C27
    • Fuel priming pump (electric)
    • Ground level engine shutoff, bumper
    • Mufflers (under hood) (Tier 2 only)
    • Precleaner, engine air intake
    • Radiator, Aluminum Modular (AMR)
    • Separated cooling system
    • Starting aid, (ether) manual override
    • Throttle Lock
    • 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
    • Alarm, back-up
    • Alternator, 150 amp
    • Batteries, maintenance free (2 - 1,400 CCA)
    • Converter, 10/15 amp, 24V to 12V
    • Deutsch component connectors
    • Electrical system, 24V
    • Electronic transmission control
    • Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
    • Starter, electric
    • Starter lockout in bumper
    • Starting receptacle for emergency start
    • Transmission lockout in bumper
  • OTHER
    • Axle temperature sensor
    • Battery disconnect and jump start receptacle, bumper
    • Coupling, Caterpillar O-ring face seals
    • Economy mode with on demand throttle
    • Emergency platform egress
    • Engine, crankcase, 500 hour interval with CH4
    • Engine idle management features: - Auto idle kickdown - Delayed engine shutdown - Engine idle shutdown
    • Fenders, steel (front)
    • Guards, crankcase and power train
    • Grouped/labeled lube points
    • Hitch, drawbar with pin
    • Hoses, Cat XT
    • Oil sampling valves
    • Positive flow control hydraulic system
    • Product Link
    • Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
    • Stairway, left and right rear access
    • Steering, load sensing
    • Steering, secondary
    • Toe kicks
    • Vandalism protection caplocks
    • Venturi stack
    • 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/CD/MP3 radio
    • Satellite Sirius radio with Bluetooth
    • LED warning strobe
    • CB radio ready
    • Window sun shade
  • MISCELLANEOUS ATTACHMENTS
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)
    • Axle oscillation stop
    • Paint, black blade rear