844K Wheel Dozer
Cat Large 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.
- Technical Specs
- Engine Model
- Cat® C27 ACERT™
- Gross Power
- 752.0 hp
- Bore
- 5.4 in
- Stroke
- 6.0 in
- Displacement
- 1649.5 in3
- Torque Rise
- 18.0 %
- Emissions
- U.S. EPA Tier 4 Final or Tier 2 Equivalent
- Gross Power - ISO 14396
- 752.0 hp
- Gross Power - SAE J1995
- 766.0 hp
- Net Power - SAE J1349
- 699.0 hp
- Net Power - SAE J1349 (High Ambient)
- 648.0 hp
- Net Power - SAE J1349 (Standard Ambient)
- 699.0 hp
- Peak Torque @ (speed)
- 2624.0 lb ft
- Rated Speed
- 1800.0 RPM
- Operating Weight
- 165089.0 lb
- Converter Drive - Forward 1
- 4.5 mph
- Converter Drive - Forward 2
- 8.3 mph
- Converter Drive - Forward 3
- 14.2 mph
- Converter Drive - Reverse 1
- 4.9 mph
- Converter Drive - Reverse 2
- 9.1 mph
- Converter Drive - Reverse 3
- 15.5 mph
- Direct Drive - Forward 2
- 8.5 mph
- Direct Drive - Forward 3
- 15.2 mph
- Direct Drive - Reverse 1
- 5.4 mph
- Direct Drive - Reverse 2
- 9.6 mph
- Direct Drive - Reverse 3
- 16.4 mph
- Direct Drive - Forward 1
- Lock-up disabled
- Transmission Type
- Cat Planetary Power Shift
- Fuel Tank - Standard
- 286.6 gal
- Cooling System
- 54.9 gal
- Crankcase
- 20.0 gal
- Transmission
- 29.1 gal
- Differentials and Final Drives - Front
- 71.6 gal
- Differentials and Final Drives - Rear
- 68.9 gal
- Hydraulic System - Implement and Hydraulic Fan
- 68.9 gal
- Hydraulic System - Steering and Braking
- 34.9 gal
- Air Conditioning
- Standard air conditioning system contains environmentally friendly R134a refrigerant
- Cab - ROPS/FOPS
- Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
- Cab - ROPS/FOPS
- SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
- 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
- Meets ISO 3540:2011
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 8.5 Degrees
- Blade Capacity Range
- 15.9-30.7 m3 (20.7-40.2 yd3)
- Machine Sound Level (ISO 6395:2008)
- 115.0 dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69.0 dB(A)
- Machine Sound Level (ISO 6395:2008)
- 113.0 dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69.0 dB(A)
- Cylinder, Double-acting: Lift, Bore and Stroke
- 133 mm × 1535 mm (5.25 in × 60.4 in)
- Cylinder, Double-acting: Tilt and Tip, Bore and Stroke
- 210 mm × 188 mm (8.25 in × 7.4 in)
- Output at 2,000 rpm and 6900 kPa (1,000 psi)
- 82.0 gal/min
- Relief Valve Setting - Bulldozer (Large Pump)
- 2700.0 psi
- Relief Valve Setting - Tilt Cylinders (Small Pump)
- 2920.0 psi
- Maximum Flow
- 94.3 gal/min
- Minimum Turning Radius (over blade)
- 34.0 ft
- Relief Valve Setting
- 4500.0 psi
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Total Steering Angle
- 35.0 Degrees
- 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