COMPARE MODELS
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Wheel Dozers
844K
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Engine Model
C27 Cat®
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Gross Power
752.0 HP
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Bore
5.4 in
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Stroke
6.0 in
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Displacement
1649.5 in³
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Torque Rise
18.0 %
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Net Power - SAE J1349 - Standard Ambient
699.0 HP
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Net Power - SAE J1349
699.0 HP
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Gross Power - ISO 14396
752.0 HP
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Net Power - SAE J1349 - High Ambient
648.0 HP
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Peak Torque - Speed
2624.0 lb/ft
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Emissions
U.S. EPA Tier 4 Final or Tier 2 Equivalent
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Rated Speed
1800.0 r/min
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Gross Power - SAE J1995
766.0 HP
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Operating Weight
165089.0 lb
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Converter Drive - Forward 1
4.5 mile/h
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Converter Drive - Forward 2
8.3 mile/h
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Converter Drive - Forward 3
14.2 mile/h
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Converter Drive - Reverse 1
4.9 mile/h
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Converter Drive - Reverse 2
9.1 mile/h
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Converter Drive - Reverse 3
15.5 mile/h
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Direct Drive - Forward 2
8.5 mile/h
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Direct Drive - Forward 3
15.2 mile/h
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Direct Drive - Reverse 1
5.4 mile/h
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Direct Drive - Reverse 2
9.6 mile/h
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Direct Drive - Reverse 3
16.4 mile/h
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Transmission Type
Cat Planetary Power Shift
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Direct Drive - Forward 1
Lock-up disabled
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Fuel Tank - Standard
286.6 gal (US)
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Cooling System
54.9 gal (US)
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Crankcase
20.0 gal (US)
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Transmission
29.1 gal (US)
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Differential - Final Drives - Front
71.6 gal (US)
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Differential - Final Drives - Rear
68.9 gal (US)
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Hydraulic System - Implement and Hydraulic Fan
68.9 gal (US)
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Hydraulic System - Steering and Braking
34.9 gal (US)
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Cab - ROPS/FOPS (1)
Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
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Air Conditioning
Standard air conditioning system contains environmentally friendly R134a refrigerant
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ROPS
ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
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Cab - ROPS/FOPS (2)
SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
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FOPS
FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
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Brakes
Meets ISO 3540:2011
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Front
Fixed
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Rear
Trunnion
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Oscillation Angle
8.5 °
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Blade Capacity Range
15,9-30,7 m3 (20,7-40,2 yd.3)
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Machine Sound Level (ISO 6395:2008)
113.0 dB(A)
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Operator Sound Level (ISO 6396:2008)
69.0 dB(A)
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Relief Valve Setting - Tilt Cylinders (Small Pump)
2920.0 psi
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Output at 2,000 rpm and 6900 kPa (1,000 psi)
82.0 gal/min
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Cylinders, Double Acting - Lift, Bore and Stroke
133 mm × 1535 mm (5.25 in × 60.4 in)
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Relief Valve Setting - Bulldozer (Large Pump)
2700.0 psi
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Cylinder, Double Acting - Tilt and Tip, Bore and Stroke
210 mm × 188 mm (8.25 in × 7.4 in)
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Total Steering Angle
35.0 °
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Steering System - Circuit
Pilot, load sensing
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Minimum Turning Radius - Over Blade
34.0 ft
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Relief Valve Setting
4500.0 psi
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Steering System - Pump
Piston, variable displacement
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Maximum Flow
94.3 gal/min
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Height - Top of Exhaust Pipe
16.6 ft
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Wheel Base
15.1 ft
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Length - With Blade on Ground
36.5 ft
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Centerline of Rear Axle to Edge of Bumper
12.5 ft
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Centerline of Front Axle to Hitch
7.5 ft
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Height - Top of ROPS
17.2 ft
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Ground Clearance
2.0 ft
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Height - Top of Hood
12.7 ft
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