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.
| Engine Model | C27 Cat® |
| Gross Power | 752HP |
| Bore | 5.4in |
| Stroke | 6in |
| Displacement | 1649.5in³ |
| Torque Rise | 18% |
| Net Power - SAE J1349 - Standard Ambient | 699HP |
| Net Power - SAE J1349 | 699HP |
| Gross Power - ISO 14396 | 752HP |
| Net Power - SAE J1349 - High Ambient | 648HP |
| Peak Torque - Speed | 2624lb/ft |
| Emissions | U.S. EPA Tier 4 Final or Tier 2 Equivalent |
| Rated Speed | 1800r/min |
| Gross Power - SAE J1995 | 766HP |
| Operating Weight | 165089lb |
| Converter Drive - Forward 1 | 4.5mile/h |
| Converter Drive - Forward 2 | 8.3mile/h |
| Converter Drive - Forward 3 | 14.2mile/h |
| Converter Drive - Reverse 1 | 4.9mile/h |
| Converter Drive - Reverse 2 | 9.1mile/h |
| Converter Drive - Reverse 3 | 15.5mile/h |
| Direct Drive - Forward 2 | 8.5mile/h |
| Direct Drive - Forward 3 | 15.2mile/h |
| Direct Drive - Reverse 1 | 5.4mile/h |
| Direct Drive - Reverse 2 | 9.6mile/h |
| Direct Drive - Reverse 3 | 16.4mile/h |
| Transmission Type | Cat Planetary Power Shift |
| Direct Drive - Forward 1 | Lock-up disabled |
| Fuel Tank - Standard | 286.6gal (US) |
| Cooling System | 54.9gal (US) |
| Crankcase | 20gal (US) |
| Transmission | 29.1gal (US) |
| Differential - Final Drives - Front | 71.6gal (US) |
| Differential - Final Drives - Rear | 68.9gal (US) |
| Hydraulic System - Implement and Hydraulic Fan | 68.9gal (US) |
| Hydraulic System - Steering and Braking | 34.9gal (US) |
| Front | Fixed |
| Rear | Trunnion |
| Oscillation Angle | 8.5° |
| Brakes | Meets ISO 3540:2011 |
| 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. |
| Blade Capacity Range | 15,9-30,7 m3 (20,7-40,2 yd.3) |
| Machine Sound Level (ISO 6395:2008) | 115dB(A) |
| Operator Sound Level (ISO 6396:2008) | 69dB(A) |
| Machine Sound Level (ISO 6395:2008) | 113dB(A) |
| Operator Sound Level (ISO 6396:2008) | 69dB(A) |
| Relief Valve Setting - Tilt Cylinders (Small Pump) | 2920psi |
| Output at 2,000 rpm and 6900 kPa (1,000 psi) | 82gal/min |
| Cylinders, Double Acting - Lift, Bore and Stroke | 133 mm × 1535 mm (5.25 in × 60.4 in) |
| Relief Valve Setting - Bulldozer (Large Pump) | 2700psi |
| Cylinder, Double Acting - Tilt and Tip, Bore and Stroke | 210 mm × 188 mm (8.25 in × 7.4 in) |
| Total Steering Angle | 35° |
| Steering System - Circuit | Pilot, load sensing |
| Minimum Turning Radius - Over Blade | 34ft |
| Relief Valve Setting | 4500psi |
| Steering System - Pump | Piston, variable displacement |
| Maximum Flow | 94.3gal/min |
| Height - Top of Exhaust Pipe | 16.6ft |
| Wheel Base | 15.1ft |
| Length - With Blade on Ground | 36.5ft |
| Centerline of Rear Axle to Edge of Bumper | 12.5ft |
| Centerline of Front Axle to Hitch | 7.5ft |
| Height - Top of ROPS | 17.2ft |
| Ground Clearance | 2ft |
| Height - Top of Hood | 12.7ft |
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