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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 844 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.

Cat Specs
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Engine

Gross Power - SAE J1995
766 HP
Bore
5.4 in
Stroke
6 in
Displacement
1649.5 in²
Torque Rise
18
Emissions
U.S. EPA Tier 4 Final and EU Stage V or China Nonroad Stage III Emissions standards, equivalent to U.S. EPA Tier 2
Rated Speed
1800 r/min
Engine Model
C27 Cat®
Gross Power - ISO 14396
752 HP

Service Refill Capacities

Differential - Final Drives - Front
71.6 gal (US)
Differential - Final Drives - Rear
68.9 gal (US)
Cooling System
54.9 gal (US)
Crankcase
20 gal (US)
Transmission
29.1 gal (US)

Transmission

Transmission Type
Cat Planetary Power Shift
Direct Drive - Forward 2
8.5 mile/h
Direct Drive - Forward 3
15.2 mile/h
Direct Drive - Reverse 2
9.6 mile/h
Direct Drive - Reverse 3
16.4 mile/h
Direct Drive - Reverse 1
5.4 mile/h

Hydraulic System - Lift/Tilt

Cylinders, 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)

Hydraulic System - Steering

Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equiv

Dimensions (Approximate)

Height - Top of Exhaust Pipe
16.6 ft
Height - Top of Hood
12.7 ft
Centerline of Front Axle to Hitch
7.5 ft
Wheel Base
15.1 ft
Ground Clearance
2 ft

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
8.5

Brakes

Brakes
Meets ISO 3540:2011

Cab

ROPS/FOPS
ISO 3471:2008 and ISO 3449:2005 Level II Standards

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008)
69 dB(A)
Machine Sound Level (ISO 6395:2008)
115 dB(A)

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008)
69 dB(A)
Machine Sound Level (ISO 6395:2008)
113 dB(A)