824 Wheel Dozer

824 Wheel Dozer

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 support your job ...
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Engine Model
Cat® C15
Rated Speed
Net Power - ISO 9249
Torque Rise
Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emissions standards. The other meets Brazil MAR-1 emission standards, emitting equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Note (1)
Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator.
Gross Power

Operating Specifications

Chip Scoop Operating Weight
Coal Scoop Operating Weight


Transmission Type
Cat planetary - powershift - ECPC
Forward - 1
Forward - 2
Forward - 3
Forward - 4
Reverse - 1
Reverse - 2
Reverse - 3
Reverse - 4

Hydraulic System - Lift/Tilt

Cylinders, Double Acting - Lift, Bore and Stroke
120 mm × 1070 mm (4.7 in × 42.1 in)
Cylinder, Double Acting - Tilt and Tip, Bore and Stroke
140 mm × 230 mm (5.5 in × 9.1 in)

Hydraulic System - Steering

Steering System - Circuit
Pilot operated, load sensing
Steering System - Pump
Variable displacement piston
Relief Valve Setting - Steering

Service Refill Capacities

Cooling System
30.6gal (US)
Engine Crankcase
9gal (US)
17.4gal (US)
Fuel Tank
206.6gal (US)
Differential - Final Drives - Front
26.4gal (US)
Differential - Final Drives - Rear
29.1gal (US)
Hydraulic Tank Only
35.4gal (US)
Hydraulic System - Implement/Steering
56.5gal (US)
AC Refrigerant
AC Oil
4.94fl oz (US)
Note (1)
All nonroad Tier 4 Final, EU Stage V, and Japan 2014 (Tier 4 Final) diesel engines are required to use:– Ultra low sulfur diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less.– Cat engines are compatible with the following renewable, alternati

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 2.0 kg of refrigerant which has a CO2 equivalent of 2.86 metric tonnes.


Planetary – Fixed
Planetary – Oscillating
Oscillation Angle

Braking System

Parking Brake
Drum and shoe, spring applied, hydraulic released

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008)
Machine Sound Level (ISO 6395:2008)

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008)
Machine Sound Level (ISO 6395:2008)

Dimensions (Approximate)

Height to Top of Beacon
Height - Top of Exhaust Stack
Height - Top of Hood
Ground Clearance - Bumper
Centerline of Front Axle to Hitch
Wheel Base
Length - With Blade on Ground - Straight Blade
Height - Top of Cab
Ground Clearance


Coal Scoop Carry Capacity
Coal Scoop Doze Capacity
Chip Scoop Carry Capacity
Chip Scoop Doze Capacity

Long Term Value and Durability

Unmatched Durability


  • Solid through-width push beams transfer and absorb stresses through a larger portion of the frame. 

  • The full box-section rear frame resists torsional shock and twisting forces.

  • Heavy-duty steering cylinder mounts efficiently transmit steering loads into the frame.

  • Optimized axle mounting results in increased structural integrity.

  • Delayed Engine Shutdown, allows your machine to cool before shutting down the engine to prevent engine and aftertreatment damage.

  • Resilient, durable blades are designed with excellent dozing and rolling characteristics.

Efficiency and Productivity

Optimum Efficiency


  • The Cat C15 engine is designed for maximum fuel efficiency in the most demanding conditions.

  • Load sensing hydraulic steering system enables precise machine control for easier loading.

  • Experience increased efficiency with variable displacement piston pumps.

  • World-class Cat planetary powershift transmission features Single Clutch Speed Shifting (SCSS) for smooth, consistent shifting and efficiency.  Enable autoshift mode to automatically upshift or downshift based on machine speed, optimizing performance and conserving fuel.

  • Equipped with Cat torque converter (TC) with lock-up clutch which optimizes fuel efficiency by eliminating TC losses while transferring more power to the ground. 

Safety First

Increased Safety


  • Standard rear vision camera to enhance operator visibility and improve workspace safety.

  • Battery disconnect, emergency engine shutdown, and stairway light switch are accessed through the ground level power service center.

  • Cab-mounted LED beacon provides warning for others near the machine.

Integrated Cat® Technologies

Innovative Technology


  • Integrated technologies allow you to monitor, manage, and enhance your jobsite operations.

  • Product Link™ remote monitoring provides valuable insight into machine or fleet performance through the VisionLink® interface, so you can make decisions that boost jobsite efficiency and lower operating costs.

  • Vital Information Management System (VIMS™) touchscreen display gives access to a wide range of sensor information and enhanced machine data to resolve problems before machine failure.

  • Optional Cat Detect technologies enhance awareness of the environment around the machine for increased safety.

Work in Comfort

Enhanced Operator Comfort


  • Steering and Transmission Integrated Control System (STIC™) combines directional selection, gear selection, and steering into a single lever, maximizing responsiveness and control, while reducing operator fatigue.

  • Operators can easily enter and exit the cab with fold-up STIC steer/armrest, reduced access stairway angles, and standard stairway lighting.

  • Experience reduced vibrations with isolated cab mounts and seat-mounted implement and steering controls.

  • Large backlit membrane switches feature LED activation indicators and ISO symbols for quick function identification.

  • Reduced interior sound levels keep operators comfortable throughout their entire shift.

Reduce Environmental Impact

Improved Sustainability


  • Automatic engine and electrical system shutdown conserves fuel and reduces component wear when machine is not in use.

  • Generate less waste with maintenance-free batteries.

  • Maximize machine life and lower operating costs with Caterpillar Reman and Certified Rebuild programs, which utilize reused or remanufactured components for 40 to 70 percent cost savings.

  • Retrofit packages from Caterpillar deliver new features to older machines to get the most from your investment.

Save on Service and Maintenance

Simplified Maintenance


  • Swing-out fuel, hydraulic oil coolers, and condenser allow for easy access cleanout.

  • Machine features ground level or platform access to easily reach daily service points.

  • Swing-out doors on either side of the engine compartment provide easy access to critical daily service checks.

  • Optional tire pressure monitoring system provides real-time information to the operator in the cab for optimized tire life.

  • Electronics bay is conveniently located inside the cab.

  • Sight gauges offer quick visual inspection to minimize fluid contamination.

  • Lighting inside the engine compartment improves visibility to service points.

  • Ecology drains prevent spills and allow for easier service.

Purpose-Built Specialty Models

Purpose Built Specialty Arrangements


  • Available in two scoop arrangements – wood chip and coal.

  • Cat wood chip and coal scoops have the unique capability of maximizing your production by both dozing and carrying a load with each pass.

  • Optimized hydraulic system built for use with this work tool, maximizes machine productivity and efficiency.

  • Dual lift cylinders provide hydraulic lift capacity matched to the demands of the application.

  • Equipped with ground level swing-out reversing fan for quick inspection and easy cleanout.

  • Equipped with underhood ventilation system which creates a neutral pressure environment to prevent wood chip ingestion from hood openings while providing fresh air to the alternator, electronics and turbo.

  • Extended top guard for increased capacity for wood chip scoops.

  • Higher ground pressure decreases risk of fires and maximizes use of storage space.

  • Less damage to coal or wood chips due to rubber tires.

  • High ground speed provides ability to manage multiple piles.

  • Scoop design allows load and carry function for mixing.

  • Lift and tip-out design makes stockpiling operations easy.

  • Scoop tilt control is standard to maximize worksite efficiency.

Standard Equipment:

Optional Equipment:

    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    Operator Environment
    • Blade, Straight
    • Blade, Straight with Push Plate
    • Blade, Semi-U
    • Blade, U
    • Blade, Extended Wear U
    • Blade, Coal U
    Cold Weather
    • Heater, engine coolant, 120V
    • Heater, engine coolant, 240V
    • Antifreeze, –50° C (–58° F)
    • Counterweight, Front
    • Film (ANSI) (Tier 4 Final/Stage V equivalent)
    • EU certification (Tier 4 Final/Stage V equivalent)
    • Plate – year of manufacture (Tier 3/Stage IIIA equivalent)
    • Tire Pressure Monitoring System
    • Dual stage engine precleaner
    Power Train
    • No-spin rear axle