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Efficiency and Productivity

Delivering the efficiency and productivity you demand through integrated machine systems.


Purpose-built from the ground up for the toughest conditions.

Power Train

Operate more efficiently with improved power and control.

Tamping Wheels and Tips

The heart of any compaction system.

Operator Station

Best-in-class operator comfort and ergonomics.

Integrated Technologies

Monitor, manage, and enhance job site operations.


Making your safety our priority.


Stewards of the environment.


Enabling high uptime by reducing your service time.

Customer Support

Your Cat dealers know how to keep your machines productive.

Operating Costs

Save time and money by working smart.

825K Standard Equipment

  • Air to air aftercooler
  • Autoshift
  • Brakes, full hydraulic, enclosed, wet multiple disc service brakes
  • Cat clean emission module (Tier 4 Final/Stage IV)
  • Electro-hydraulic parking brake
  • Electronic Clutch Pressure Control (ECPC)
  • Engine, Cat C15 with ACERT Technology: – Tier 4 Final/Stage IV – Tier 3/Stage IIIA equivalent
  • Fuel priming pump (electric)
  • Fuel to air cooler
  • Ground level engine shutoff
  • Hydraulically driven demand fan
  • Integrated braking system
  • Muffler (under hood) (Tier 3/Stage IIIA equivalent)
  • Radiator, Aluminum Modular (AMR)
  • Separated cooling system
  • Single Clutch Speed Shifting (SCSS)
  • Starting aid (ether) automatic
  • Throttle lock
  • Torque converter with Lock Up Clutch (LUC)
  • Transmission, planetary, with 3F/3R speed range control

  • Alarm, back-up
  • Alternator, 150 amp
  • Batteries, maintenance-free (4 – 1,000 CCA)
  • Electrical system, 24V
  • Ground level lockable master disconnect switch
  • Light, warning unswitched (LED strobe)
  • Lighting, access stairway
  • Lighting, under hood
  • Lighting system, halogen (front and rear)
  • Lights, directional (rear)
  • Starter, electric (heavy duty)
  • Starting receptacle for emergency start

  • 12V power port for mobile phone or laptop connection
  • AccuGrade™ mapping (ready)
  • Air conditioner
  • Cab, sound-suppressed pressurized
  • Cab door, sliding window (LH)
  • Compaction control (ready)
  • Coat and hard hat hooks
  • Electro-hydraulic tilt and lift controls
  • Finger tip shifting controls
  • Flip-up armrest
  • Heater and defroster
  • Horn, electric
  • Implement hydraulic lockout
  • Instrumentation, gauges: – DEF fluid level (Tier 4 Final/Stage IV) – Engine coolant temperature – Fuel level – Hydraulic oil temperature – Speedometer/tachometer – Torque converter temperature
  • Instrumentation, warning indicators: – Action alert system, three categories – Brake oil pressure – Electrical system, low voltage – Engine failure malfunction alert and action lamp – Parking brake status
  • Internal four-post rollover protective structure (ROPS/FOPS)
  • Laminated glass
  • Light, (dome) cab
  • Lunch box and beverage holders
  • Mirror, internal (panoramic)
  • Mirrors, heated ready
  • Mirrors, rearview (externally mounted)
  • Radio ready for entertainment: – Antenna – Speakers – Converter (12V, 10-15 amp)
  • Seat, Cat Comfort (cloth) air suspension
  • Seat belt with minder, retractable, 76 mm (3 in) wide
  • STIC control system with lockout
  • Sun visor, front
  • Tinted glass
  • Transmission gear (indicator)
  • Vital Information Management System (VIMS): – Graphical information display – External data port – Customizable operator profiles
  • Wet-arm wipers/washers (front and rear)
  • Intermittent wipers (front and rear)

  • Wheels, tamping tips

  • Guard, driveshaft
  • Guards, crankcase and power train

  • Bulldozer straight blade, hydraulics, and linkage are included in the base machine

  • Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)

  • Cleaner bars with teeth
  • Doors, service access (locking)
  • Ecology drains for engine, radiator, transmission, hydraulic tank
  • Emergency platform egress
  • Engine, crankcase, 500 hour interval with CJ-4 oil
  • Engine idle management features: – Auto idle kickdown – Delayed engine shutdown – Engine idle shutdown
  • Fast fuel system
  • Fire suppression ready
  • Fuel tank, Fast Fill, 782 L (207 gal)
  • Hitch, drawbar with pin
  • Hoses, Cat
  • Hydraulic, engine, and transmission oil coolers
  • Oil change system, high speed
  • Oil sampling valves
  • Product Link
  • Stairway, left and right rear access
  • Steering, load sensing
  • Toe kicks
  • Total hydraulic filtration system
  • Vandalism protection caplocks
  • Venturi stack
  • Fold down exhaust stack for shipping

825K Optional Equipment

  • Camera, rear vision
  • Radio, CB (ready)

  • Compaction control, basic

  • Antifreeze, –50° C (–58° F)

  • Heater, engine coolant, 120V
  • Heater, engine coolant, 240V

  • Film (ANSI) (Tier 4 Final/Stage IV)
  • EU certification (Tier 4 Final/Stage IV)
  • Plate – year of manufacture (Tier 3/Stage III Equivalent)


Cat Soil Compactors are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to operate more efficiently and safely. Representing a long-standing commitment to quality and performance, this rugged, powerful machine is designed and built for heavy-duty compaction and dozing operations. Focused on helping our customers succeed, we have continued to build upon each new series. The 825K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.


Engine Model Cat® C15 ACERT™ Cat® C15 ACERT™ Less
Net Power 405.0 hp 302.0 kW Less
Emissions Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards Meets U.S. EPA Tier 4 Final/EU Stage IV emission standards or meets U.S. EPA Tier 3/EU Stage IIIA equivalent emission standards Less
Rated Power (Net SAE J1349) 405.0 hp 302.0 kW Less
Rated Power (Net ISO 9249) 405.0 hp 302.0 kW Less
Gross Power 435.0 hp 324.0 kW Less
Net Power: Direct Drive – Gross Power 412.0 hp 307.0 kW Less
Net Power: Direct Drive – Torque Rise 33% 33% Less
Net Power: Converter Drive – Gross Power 435.0 hp 324.0 kW Less
Net Power: Converter Drive – Torque Rise 8.5% 8.5% Less
Maximum Net Torque @ 1,300 rpm 1478.8 lbf-ft 2005.0 N∙m Less
Maximum Altitude without Derating (Tier 4 Final/Stage IV) 9298.0 ft 2834.0 m Less
Maximum Altitude without Derating (Tier 3 Final/Stage IIIA equivalent) 9098.0 ft 2773.0 m Less
Bore 5.4 in 137.2 mm Less
Stroke 6.7 in 171.4 mm Less
Displacement 927.6 in3 15.2 L Less
High Idle Speed 2300.0 rpm 2300.0 rpm Less
Low Idle Speed 800.0 rpm 800.0 rpm Less

Operating Specifications

Operating Weight 78326.0 lb 35528.0 kg Less
Operating Weight (Tier 4 Final/Stage IV) 78326.0 lb 35528.0 kg Less
Operating Weight (Tier 3 Final/Stage IIIA equivalent) 77340.0 lb 35081.0 kg Less


Transmission Type Planetary – Powershift – ECPC Planetary – Powershift – ECPC Less
Travel Speeds: Forward – First 3.4 mph 5.5 km/h Less
Travel Speeds: Forward – Second 6.0 mph 9.7 km/h Less
Travel Speeds: Forward – Third 10.7 mph 17.2 km/h Less
Travel Speeds: Reverse – First 3.9 mph 6.2 km/h Less
Travel Speeds: Reverse – Second 6.9 mph 11.1 km/h Less
Travel Speeds: Reverse – Third 12.2 mph 19.7 km/h Less

Hydraulic System

Pump Flow at 1,800 rpm 30.9 gal/min 117.0 L/min Less
Main Relief Pressure 3495.0 psi 24100.0 kPa Less
Maximum Supply Pressure 3495.0 psi 24100.0 kPa Less
Cylinder, Double-acting: Lift, Bore and Stroke 120 mm × 1070 mm (4.7 in × 42.1 in) 120 mm × 1070 mm (4.7 in × 42.1 in) Less
Cylinder, Double-acting: Tilt, Bore and Stroke 95.25 mm × 216 mm (3.75 in × 8.5 in) 95.25 mm × 216 mm (3.75 in × 8.5 in) Less

Service Refill Capacities

Cooling System 30.6 gal 116.0 L Less
Engine Crankcase 9.0 gal 34.0 L Less
Transmission 17.4 gal 66.0 L Less
Fuel Tank 206.6 gal 782.0 L Less
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV) 8.5 gal 32.0 L Less
Differentials and Final Drives – Front 26.4 gal 100.0 L Less
Differentials and Final Drives – Rear 29.1 gal 110.0 L Less
Hydraulic Tank Only 35.4 gal 134.0 L Less


Front Planetary – Fixed Planetary – Fixed Less
Rear Planetary – Oscillating Planetary – Oscillating Less
Oscillation Angle ±8° ±8° Less


Parking Brake Drum and Shoe, Spring Applied, Hydraulic Released Drum and Shoe, Spring Applied, Hydraulic Released Less

Cab – Standard

Operator Sound Level (ISO 6396) 73.0 dB(A) 73.0 dB(A) Less
Machine Sound Level (ISO 6395) 113.0 dB(A) 113.0 dB(A) Less

Cab – Suppression

Operator Sound Level (ISO 6396) 72.0 dB(A) 72.0 dB(A) Less
Machine Sound Level (ISO 6395) 110.0 dB(A) 110.0 dB(A) Less

Hydraulic System – Steering

Steering System – Circuit Double Acting – End Mounted Double Acting – End Mounted Less
Bore 4.5 in 114.3 mm Less
Stroke 22.7 in 576.0 mm Less
Steering System – Pump Piston – Variable Displacement Piston – Variable Displacement Less
Maximum System Flow 170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm) 170 L/min @ 1,800 rpm (44.9 gal/min @ 1,800 rpm) Less
Steering Pressure Limited 3481.0 psi 24000.0 kPa Less
Vehicle Articulation Angle 86 degrees 86 degrees Less


Moldboard Length 14.4 ft 4390.0 mm Less
Height Including Cutting Edge 3.4 ft 1032.0 mm Less
Maximum Depth of Cut 1.97 ft 602.0 mm Less
Maximum Lift Above Ground 3.14 ft 958.0 mm Less
Blade Tip Angle – Total 14.8° 14.8° Less
Blade Tip Angle – Forward 7.3° 7.3° Less
Blade Tip Angle – Back 7.5° 7.5° Less
Blade Tilt Angle – Right – Mechanical 5.1° 5.1° Less
Blade Tilt Angle – Left – Mechanical 4.1° 4.1° Less
Blade Tilt Angle – Right – Hydraulic 6.3° 6.3° Less
Blade Tilt Angle – Left – Hydraulic 5.4° 5.4° Less
Blade Tilt Angle – Right Full 10.8° 10.8° Less
Blade Tilt Angle – Left Full 10.1° 10.1° Less
Total Tilt Adjustment 2.9 ft 890.0 mm Less
Width Over End Bits 15.18 ft 4628.0 mm Less


Weight 16167.0 lb 7333.0 kg Less
Outside Diameter 5.5 ft 1672.0 mm Less
Drum Diameter 4.3 ft 1299.0 mm Less
Drum Width 3.7 ft 1125.0 mm Less
Tips per Wheel 65 65 Less
Width over Drums 11.98 ft 3650.0 mm Less

Dimensions (Approximate)

Height to Top of Beacon 14.4 ft 4381.0 mm Less
Height to Top of Exhaust Pipe 14.1 ft 4290.0 mm Less
Height to Top of Hood 10.4 ft 3162.0 mm Less
Ground Clearance to Bumper 2.7 ft 810.0 mm Less
Center Line of Rear Axle to Edge of Counterweight 9.3 ft 2830.0 mm Less
Hitch to Center Line of Front Axle 6.1 ft 1850.0 mm Less
Wheelbase 12.1 ft 3700.0 mm Less
Length with Blade on Ground 28.1 ft 8561.0 mm Less
Ground Clearance 1.6 ft 492.0 mm Less
Width over Wheels 11.98 ft 3650.0 mm Less
Height to ROPS/Canopy 13.3 ft 4059.0 mm Less
Turning Radius – Inside of Push Arms 8.6 ft 2627.0 mm Less
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