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 825 continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.
Gross Power (SAE J1995:2014) 435 hp
Net Power (SAE J1349:2011) 405 hp
Net Power (ISO 9249:2007) 405 hp
Engine Power (ISO 14396:2002) 426 hp
Bore 5.4in
Displacement 927.6in³
Emissions U.S. EPA Tier 4 Final / EU Stage V/Korea Stage V and Japan 2014 or Brazil MAR-1, emitting equivalent to U.S. EPA Tier 3/EU Stage IIIA
Engine Model Cat® C15
Engine Power (ISO 14396:2002) 426hp
Gross Power (SAE J1995:2014) 435hp
High Idle Speed 2300r/min
Low Idle Speed 800r/min
Maximum Altitude - Without Derating (Tier 3/Stage IIIA) 9098ft
Maximum Altitude - Without Derating (Tier 4 Final/Stage V) 9298ft
Net Power (ISO 9249:2007) 405hp
Net Power (SAE J1349:2011) 405hp
Note Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
Peak Net Torque (1,300) rpm) 1479lbf·ft
Rated Speed 1800r/min
Stroke 6.7in
Torque Rise 33%
Maximum Operating Weight (Tier 3/Stage IIIA equivalent) 77340lb
Maximum Operating Weight (Tier 4 Final/Stage V) 78326lb
Transmission Type Planetary - Powershift - ECPC
Travel Speeds - Forward - First 3.4mile/h
Travel Speeds - Forward - Second 6.4mile/h
Travel Speeds - Forward - Third 11.1mile/h
Travel Speeds - Reverse - First 4.1mile/h
Travel Speeds - Reverse - Second 7.3mile/h
Travel Speeds - Reverse - Third 12.2mile/h
Cylinders, Double Acting - Lift, Bore and Stroke 120 mm x 1070 mm (4.7 in x 42.1 in)
Cylinders, Double Acting - Tilt, Bore and Stroke 95.25 mm x 215 mm (3.75 in x 8.5 in)
Main Relief Pressure 3771psi
Maximum Supply Pressure 3495psi
Pump Flow at 1,800 rpm 30.9gal/min
Cooling System 30.6gal (US)
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage V) 8.5gal (US)
Differential - Final Drives - Front 26.4gal (US)
Differential - Final Drives - Rear 29.1gal (US)
Engine Crankcase 9gal (US)
Fuel Tank 206.6gal (US)
Hydraulic Tank Only 35.4gal (US)
Note Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl ester) * • 100% renewable diesel, H
Transmission 17.4gal (US)
Front Planetary - Fixed
Oscillation Angle ± 8 °
Rear Planetary - Oscillating
Parking Brake Drum and Shoe, Spring Applied, Hydraulic Released
Service Brakes Multi Disc Wet (Enclosed) 2 WHL
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system co
Machine Sound Power Level (ISO 6395:2008) 113dB(A)
Machine Sound Power Level (ISO 6395:2008)** 110dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC.” and UK Noise Regulation 2001 No. 1701
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Operator Sound Pressure Level (ISO 6396:2008) 73dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
Machine Sound Power Level (ISO 6395:2008) 113dB(A)
Machine Sound Power Level (ISO 6395:2008)** 110dB(A)
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives”
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC.” and UK Noise Regulation 2001 No. 1701
Note (3) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (4) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (5) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Operator Sound Pressure Level (ISO 6396:2008) 73dB(A)
Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
Bore 4.5in
Maximum System Flow 170 L/min @ 1,800 rpm / 44.9 gal/min @ 1,800 rpm
Steering Pressure Limited 3481lb/in²
Steering System - Circuit Pilot operated, load sensing
Steering System - Pump Piston - Variable Displacement
Stroke 22.7in
Vehicle Articulation Angle 86 degrees
Blade Tilt Angle - Left - Hydraulic 5.4°
Blade Tilt Angle - Left - Mechanical 4.1°
Blade Tilt Angle - Left Full 10.1°
Blade Tilt Angle - Right - Hydraulic 6.3°
Blade Tilt Angle - Right - Mechanical 5.1°
Blade Tilt Angle - Right Full 10.8°
Blade Tip Angle - Back 7.5°
Blade Tip Angle - Forward 7.3°
Blade Tip Angle - Total 14.8°
Height - Including Cutting Edge 3.4ft
Maximum Depth of Cut 1.97ft
Maximum Lift Above Ground 3.14ft
Moldboard - Length 14.4ft
Total Tilt Adjustment 2.9ft
Width - Over End Bits 15.18ft
Drum Diameter 4.3ft
Drum Width 3.7ft
Outside Diameter 5.5ft
Tips per Wheel 65
Weight 16167lb
Width - Over Drums 11.97ft
Drum Diameter 4.3ft
Drum Width 3.8ft
Outside Diameter 5.5ft
Tips per Wheel 65
Weight 16610lb
Width over Drums 11.97ft
Centerline of Rear Axle to Bumper 9.3ft
Ground Clearance 1.7ft
Ground Clearance - Bumper 2.8ft
Ground Clearance to Trunnion 1.47ft
Height - Top of Beacon 14.5ft
Height - Top of Cab Roof 13.4ft
Height - Top of Exhaust Pipe 14.1ft
Height to Top of Hood 10.5ft
Hitch to Centerline of Front Axle 6.1ft
Length - With Blade on Ground 28ft
Wheel Base 12.2ft
Width - Over Wheels 11.12ft
Standard and optional equipment may vary. Consult your Cat® dealer for details.
Advanced Productivity Electronic Control System (APECS)
Air-to-air aftercooler
Brakes, full hydraulic, enclosed, wet multiple disc service brakes
Cat Clean Emissions Module (U.S. EPA Tier 4 Final/EU Stage V only)
Electro-hydraulic parking brake
Electronic Clutch Pressure Control (ECPC)
Engine, Cat C15 configured for two emissions options: Tier 4 Final/Stage V, or emitting equivalent to Tier 3/Stage IIIA
Fuel priming pump (electric)
Fuel-to-air cooler
Ground-level engine shutdown
Muffler (under hood) (Tier 3/Stage IIIA equivalent only)
Radiator, aluminum modular radiator (AMR)
Starting aid (ether)
Throttle lock
Torque converter with lockup clutch (LUC)
Transmission, planetary, with 3F/3R speed range control
Axles: – Standard or no-spin rear
Alarm, back-up
Alternator, 150 amp
Batteries, maintenance-free (4-1,000 CCA)
Electrical system, 24V
Ground-level lockable master disconnect switch
Lights, directional (rear)
Light, warning switched (LED strobe)
Lighting system LED, (front and rear)
Starter, electric (heavy duty)
Auxiliary start receptacle
12V power port for mobile phone or laptop connection
Air conditioner
Cab, sound-suppressed pressurized
Cab door, sliding window (LH)
Cat Compaction Control (ready)
Cat Detect: Object Detection (ready)
Coat and hard hat hooks
Fingertip shifting controls
Flip-up armrest
Heater and defroster
Horn, electric
Hydraulic controls - seat mounted
Implement hydraulic lockout
Instrumentation, gauges: – Diesel exhaust fluid (DEF) level (Tier 4 Final/Stage V only) – 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
Light, (dome) cab
Lunchbox and beverage holders
Mirror, internal (panoramic)
Mirrors standard or heated, rearview (externally mounted)
Radio ready for entertainment: – Antenna – Speakers – Converter (12V, 10-15 amp)
Premium plus seat containing forced air heating and cooling, 2-way thigh adjustment, power lumbar and back bolster adjustment, ride stiffness adjustment, dynamic end dampening, and leather finish
Seat belt with minder, retractable, 76 mm (3 in) wide
Steering and Transmission Integrated Control (STIC™) system with lockout
Transmission gear (indicator)
Vital Information Management System (VIMS™): – Graphical information display – External data port – Customizable operator profiles – Event indicator light on rear grill
Wet-arm wipers/washers (front and rear): – Intermittent wipers (front and rear)
Glass (window) - rubber-mounted glass
Precleaner, cab powered
Cleaner bars with teeth
Guards, crankcase and powertrain
Guard, driveshaft
Antifreeze, premixed 50% concentration extended life (–34° C/–29° F)
Doors, service access (locking)
Ecology drains for engine, radiator, transmission, hydraulic tank
Engine, crankcase, 500 hour interval with CJ-4 oil
Emergency platform egress
Fire suppression ready
Fuel tank, fast fill, 782 L (207 gal)
Hitch, drawbar with pin
Hoses, Cat XT™
Hydraulic, engine, and transmission oil coolers
Oil change system, high speed
Oil sampling valves
Steering, load sensing
Total hydraulic filtration system
Vandalism protection caplocks
Venturi stack
Product Link™: – cellular, satellite
Standard and optional equipment may vary. Consult your Cat® dealer for details.
Camera, rear vision
Radio, AM/FM/AUX/USB/Bluetooth®
Radio, CB (ready)
Compaction control, basic
Antifreeze, –50° C (–58° F)
Heater, engine coolant, 120V
Heater, engine coolant, 240V
CE/UKCA Certification (standard where regulations require it)
Plate – year of manufacture
Engine precleaners: – dual stage
