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Overview

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 815K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency.

Engine

Units:
Engine Model Cat® C7.1 ACERT™: configured for two emissions options Cat® C7.1 ACERT™: configured for two emissions options Less
Net Power 248.0 hp 185.0 kW Less
Bore 4.1 in 105.0 mm Less
Stroke 5.3 in 135.0 mm Less
Displacement 427.8 in3 7.01 L 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 (SAE J1349) – Tier 4 Final/Stage IV 248.0 hp 185.0 kW Less
Rated Power (Net ISO 9249) – Tier 4 Final/Stage IV 248.0 hp 185.0 kW Less
Gross Power (SAE J1995) – Tier 4 Final/Stage IV 284.0 hp 212.0 kW Less
Gross Power (ISO 14396) – Tier 4 Final/Stage IV 274.0 hp 204.0 kW Less
Maximum Net Torque @ 1,400 rpm – Tier 4 Final/Stage IV 899.0 lbf-ft 1219.0 N·m Less
Torque Rise – Tier 4 Final/Stage IV 52% 52% Less
Rated Power (SAE J1349) – Tier 3/Stage IIIA equivalent 249.0 hp 186.0 kW Less
Rated Power (Net ISO 9249) – Tier 3/Stage IIIA equivalent 249.0 hp 186.0 kW Less
Gross Power (SAE J1995) – Tier 3/Stage IIIA equivalent 286.0 hp 213.0 kW Less
Gross Power (ISO 14396) – Tier 3/Stage IIIA equivalent 275.0 hp 205.0 kW Less
High Idle Speed 2270.0 rpm 2270.0 rpm Less
Low Idle Speed 800.0 rpm 800.0 rpm Less
Maximum Net Torque @ 1,400 rpm – Tier 3/Stage IIIA equivalent 749.0 lbf-ft 1016.0 N·m Less
Torque Rise – Tier 3/Stage IIIA equivalent 26% 26% Less
Maximum Altitude without Derating 9842.52 ft 3000.0 m Less

Operating Specifications

Operating Weight 49353.0 lb 22386.0 kg Less
Maximum Operating Weight (Tier 4 Final/Stage IV) 49353.0 lb 22386.0 kg Less
Maximum Operating Weight (Tier 3/Stage IIIA equivalent) 48740.0 lb 22108.0 kg Less

Transmission

Transmission Type Planetary – Powershift – ECPC Planetary – Powershift – ECPC Less
Travel Speeds: Forward – First 4.2 mph 6.7 km/h Less
Travel Speeds: Forward – Second 7.5 mph 12.0 km/h Less
Travel Speeds: Forward – Third 13.2 mph 21.2 km/h Less
Travel Speeds: Reverse – First 4.8 mph 7.7 km/h Less
Travel Speeds: Reverse – Second 8.5 mph 13.7 km/h Less
Travel Speeds: Reverse – Third 15.0 mph 24.2 km/h Less

Hydraulic System

Pump Flow at 2,111 rpm 23.5 gal/min 89.0 L/min Less
Main Relief Pressure 3190.0 psi 22000.0 kPa Less
Maximum Supply Pressure 2930.0 psi 20200.0 kPa Less
Lift Cylinder, Double-acting: Bore and Stroke 101.6 mm × 627 mm (4 in × 24.7 in) 101.6 mm × 627 mm (4 in × 24.7 in) Less
Tilt Cylinder, Double-acting: Bore and Stroke 101.6 mm × 167 mm (4 in × 6.6 in) 101.6 mm × 167 mm (4 in × 6.6 in) Less

Service Refill Capacities

Cooling System – Tier 4 Final/Stage IV 21.4 gal 81.0 L Less
Engine Crankcase 5.3 gal 20.0 L Less
Transmission 14.8 gal 56.0 L Less
Fuel Tank 132.1 gal 500.0 L Less
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV only) 4.2 gal 16.0 L Less
Differentials and Final Drives – Front 17.2 gal 65.0 L Less
Differentials and Final Drives – Rear 17.2 gal 65.0 L Less
Hydraulic Tank Only 19.8 gal 75.0 L Less
Cooling System – Tier 3/Stage IIIA equivalent 19.3 gal 73.0 L Less
Note All non-road Tier 4 Final and Stage IV diesel engines are required to use: – Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less. Biodiesel blends up to B20 are acceptable when blended with 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less ULSD and when the biodiesel feedstock meets ASTM D7467 specifications. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1. All non-road Tier 4 Final and Stage IV diesel engines are required to use: – Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less. Biodiesel blends up to B20 are acceptable when blended with 15 ppm for EPA and 10 ppm for EU (mg/kg) sulfur or less ULSD and when the biodiesel feedstock meets ASTM D7467 specifications. – Cat DEO-ULS™ or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. – Diesel Exhaust Fluid (DEF) that meets all requirements defined in ISO 22241-1. Less

Axles

Front Planetary – Fixed Planetary – Fixed Less
Rear Planetary – Oscillating Planetary – Oscillating Less
Oscillation Angle ±10° ±10° Less

Brakes

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

Cab – Standard

Operator Sound Level (ISO 6396) 71.0 dB(A) 71.0 dB(A) Less
Machine Sound Level (ISO 6395) Tier 4/Stage IV 111.0 dB(A) 111.0 dB(A) Less
Machine Sound Level (ISO 6395) Tier 3/Stage IIIA equivalent 112.0 dB(A) 112.0 dB(A) Less

Cab – Suppression

Operator Sound Level (ISO 6396) 70.0 dB(A) 70.0 dB(A) Less
Machine Sound Level (ISO 6395) Tier 4/Stage IV 109.0 dB(A) 109.0 dB(A) Less
Machine Sound Level (ISO 6395) Tier 3/Stage IIIA equivalent 110.0 dB(A) 110.0 dB(A) Less

Hydraulic System – Steering

Steering System – Circuit Closed Center Load Sensing Closed Center Load Sensing Less
Bore 4.0 in 101.6 mm Less
Stroke 23.5 in 597.0 mm Less
Steering System – Pump Piston – Variable Displacement Piston – Variable Displacement Less
Maximum System Flow 147 L/min @ 2,111 rpm (38.8 gal/min @ 2,111 rpm) 147 L/min @ 2,111 rpm (38.8 gal/min @ 2,111 rpm) Less
Steering Pressure Limited 4003.0 psi 27600.0 kPa Less
Vehicle Articulation Angle 84 degrees 84 degrees Less

Blades

Maximum Depth of Cut 0.73 ft 222.0 mm Less
Maximum Lift Above Ground 2.63 ft 802.0 mm Less
Total Tilt Adjustment 2.14 ft 651.0 mm Less
Width Over End Bits 12.34 ft 3761.0 mm Less
Width – Moldboard Length 11.98 ft 3652.0 mm Less
Height Including Cutting Edge 2.82 ft 860.0 mm Less
Blade Tilt Angle – Right – Hydraulic 4.8° 4.8° Less
Blade Tilt Angle – Left – Hydraulic 5.5° 5.5° Less
Blade Tilt Adjustment – Right 1.0 ft 305.0 mm Less
Blade Tilt Adjustment – Left 1.14 ft 346.0 mm Less

Wheels

Drum Width 3.25 ft 991.0 mm Less
Drum Diameter 3.38 ft 1029.0 mm Less
Outside Diameter 4.63 ft 1412.0 mm Less
Tips per Wheel 60 60 Less
Weight 9720.0 lb 4409.0 kg Less
Width over Drums 10.64 ft 3243.0 mm Less

Dimensions (Approximate)

Height to Top of Beacon 12.95 ft 3946.0 mm Less
Height to Top of Exhaust Pipe 10.97 ft 3344.0 mm Less
Height to Top of Hood 8.42 ft 2566.0 mm Less
Ground Clearance to Bumper 2.18 ft 665.0 mm Less
Center Line of Rear Axle to Bumper 6.53 ft 1990.0 mm Less
Hitch to Center Line of Front Axle 5.5 ft 1675.0 mm Less
Wheelbase 10.99 ft 3350.0 mm Less
Length with Blade on Ground 23.48 ft 7157.0 mm Less
Ground Clearance 1.23 ft 375.0 mm Less
Width over Wheels 10.64 ft 3243.0 mm Less
Height to Top of Cab Roof 11.98 ft 3650.0 mm Less
Turning Radius – Inside of Push Arms 8.27 ft 2520.0 mm Less

Efficiency and Productivity

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


Structures

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


Engine and 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.


Safety

Making your safety our priority.


Sustainability

Stewards of the environment.


Serviceability

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.


815K Standard Equipment

POWER TRAIN
  • Advanced Productivity Electronic Control System (APECS)
  • Air to air aftercooler
  • Brakes, full hydraulic, enclosed, wet multiple disc service brakes
  • Cat clean emission module (Tier 4 Final/Stage IV only)
  • Electro-hydraulic parking brake
  • Electronic Clutch Pressure Control (ECPC)
  • Engine, Cat C7.1 with ACERT Technology (configured for two emissions options): – Tier 4 Final/Stage IV – Tier 3/Stage IIIA equivalent
  • Engine driven cooling fan – suction
  • Fuel priming pump (electric)
  • Fuel to air cooler
  • Ground level engine shutoff
  • Muffler (under hood) (Tier 3/Stage IIIA equivalent only)
  • Radiator, unit core
  • Starting aid (ether)
  • Throttle lock
  • Torque converter
  • Transmission, planetary, with 3F/3R speed range control

ELECTRICAL
  • Alarm, back-up
  • Alternator, 150 amp
  • Batteries, maintenance-free
  • Electrical system, 24V
  • Ground level lockable master disconnect switch
  • Lights, directional (rear)
  • Light, warning switched (LED strobe)
  • Lighting system, (front and rear)
  • Starter, electric
  • Starting receptacle for emergency start

OPERATOR ENVIRONMENT
  • 12V power port for mobile phone or laptop connection
  • AccuGrade™ mapping (ready)
  • 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
  • Finger tip shifting controls
  • Flip-up armrest
  • Heater and defroster
  • Horn, electric
  • Hydraulic controls – seat mounted
  • Implement hydraulic lockout
  • Instrumentation, gauges: – DEF fluid level (Tier 4 Final/Stage IV 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
  • Lunch box and beverage holders
  • Mirror, internal (panoramic)
  • 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 – Event indicator light on rear grill
  • Wet-arm wipers/washers (front and rear): – Intermittent wipers (front and rear)

TIRES, RIMS AND WHEELS
  • Wheels, tamping foot

GUARDS
  • Cleaner bars with teeth
  • Guards, crankcase and power train
  • Guard, driveshaft

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

OTHER STANDARD EQUIPMENT
  • DEF tank fill gauge
  • 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, 500 L (132.1 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

STANDARD ATTACHMENTS – HYDRAULICS
  • Hydraulics: – Standard or EU and Canada

STANDARD ATTACHMENTS – OPERATOR ENVIRONMENT
  • Glass (window): – Standard bonded or rubber-mounted glass
  • Precleaner – cab: – Standard or powered
  • Seat – cab: – Standard or heated and ventilated
  • Mirrors – cab: – Standard or heated

STANDARD ATTACHMENTS – POWER TRAIN
  • Axles: – Standard or non-spin rear

STANDARD ATTACHMENTS – SPECIAL ARRANGEMENTS
  • Engine Precleaners: – Turbine or dual stage

STANDARD ATTACHMENTS – ELECTRICAL
  • Lights: – Standard or LED

STANDARD ATTACHMENTS – FUEL SYSTEMS
  • Fuel tank: – Non-fast or fast fill

STANDARD ATTACHMENTS – TECHNOLOGY PRODUCTS
  • Product Link: – GSM, satellite

STANDARD ATTACHMENTS – CLEANER BARS
  • Cleaner bars: – Standard or abrasive

STANDARD ATTACHMENTS – BLADES
  • Blades: – Straight or tilt-straight

815K Optional Equipment

OPERATOR ENVIRONMENT
  • Camera, rear vision
  • Radio, AM/FM/AUX/USB/BLUETOOTH
  • Radio, CB (ready)

TECHNOLOGY PRODUCTS
  • Compaction control, basic

OTHER ATTACHMENTS
  • Sound suppression (required for Brazil)

FLUIDS
  • Antifreeze, –50° C (–58° F)

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

MISCELLANEOUS
  • Film (ANSI) (Tier 4 Final/Stage IV only)
  • EU certification (Tier 4 Final/Stage IV only)
  • Plate – year of manufacture (Tier 3/Stage IIIA equivalent only)