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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.

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Engine

Net Power
248 HP
Bore
4.1 in
Stroke
5.3 in
Displacement
427.8 in³
Gross Power - SAE J1995 - Tier 4 Final/Stage IV
284 HP
Rated Power (SAE J1349) - Tier 3/Stage IIIA Equivalent
249 HP
Engine Model
Cat® C7.1 ACERT™: configured for two emissions options
Maximum Altitude - Without Derating
9842.52 ft
Torque Rise - Tier 4 Final/Stage IV
52%
Gross Power - ISO 14396 - Tier 4 Final/Stage IV
274 HP
Rated Power (Net ISO 9249) - Tier 3/Stage IIIA equivalent
249 HP
High Idle Speed
2270 r/min
Rated Power (SAE J1349) - Tier 4 Final/Stage IV
248 HP
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
Maximum Net Torque - 1,400 rpm - Tier 3/Stage IIIA Equivalent
749 lb/ft
Gross Power - SAE J1995 - Tier 3/Stage IIIA Equivalent
286 HP
Rated Power (Net ISO 9249) - Tier 4 Final/Stage IV
248 HP
Low Idle Speed
800 r/min
Torque Rise - Tier 3/Stage IIIA Equivalent
26%
Gross Power - ISO 14396 - Tier 3/Stage IIIA Equivalent
275 HP
Maximum Net Torque - 1,400 rpm - Tier 4 Final/Stage IV
899 lb/ft

Operating Specifications

Operating Weight
49353 lb
Maximum Operating Weight (Tier 3/Stage IIIA equivalent)
48740 lb
Maximum Operating Weight (Tier 4 Final/Stage IV)
49353 lb

Dimensions (Approximate)

Ground Clearance
1.23 ft
Ground Clearance - Bumper
2.18 ft
Wheel Base
10.99 ft
Centerline of Rear Axle to Bumper
6.53 ft
Length - With Blade on Ground
23.48 ft
Height - Top of Beacon
12.95 ft
Width - Over Wheels
10.64 ft
Height - Top of Hood
8.42 ft
Turning Radius - Inside of Push Arms
8.27 ft
Height - Top of Cab Roof
11.98 ft
Hitch to Centerline of Front Axle
5.5 ft
Height - Top of Exhaust Pipe
10.97 ft

Service Refill Capacities

Hydraulic Tank Only
19.8 gal (US)
Transmission
14.8 gal (US)
Engine Crankcase
5.3 gal (US)
Cooling System - Tier 3/Stage IIIA Equivalent
19.3 gal (US)
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 u
Differential - Final Drives - Front
17.2 gal (US)
Fuel Tank
132.1 gal (US)
Cooling System - Tier 4 Final/Stage IV
21.4 gal (US)
Differential - Final Drives - Rear
17.2 gal (US)
Diesel Exhaust Fluid Tank (Tier 4 Final/Stage IV Only)
4.2 gal (US)

Wheels

Drum Width
3.25 ft
Drum Diameter
3.38 ft
Outside Diameter
4.63 ft
Tips per Wheel
60
Weight
9720 lb
Width - Over Drums
10.64 ft

Transmission

Transmission Type
Planetary – Powershift – ECPC
Travel Speeds - Forward - Third
13.2 mile/h
Travel Speeds - Reverse - Third
15 mile/h
Travel Speeds - Forward - First
4.2 mile/h
Travel Speeds - Reverse - First
4.8 mile/h
Travel Speeds - Forward - Second
7.5 mile/h
Travel Speeds - Reverse - Second
8.5 mile/h

Blades

Maximum Depth of Cut
0.73 ft
Maximum Lift Above Ground
2.63 ft
Total Tilt Adjustment
2.14 ft
Width - Over End Bits
12.34 ft
Width - Moldboard Length
11.98 ft
Blade Tilt Adjustment - Left
1.14 ft
Blade Tilt Angle - Right - Hydraulic
4.8°
Blade Tilt Adjustment - Right
1 ft
Height - Including Cutting Edge
2.82 ft
Blade Tilt Angle - Left - Hydraulic
5.5°

Axles

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

Hydraulic System

Tilt Cylinder, Double Acting - Bore and Stroke
101.6 mm × 167 mm (4 in × 6.6 in)
Maximum Supply Pressure
2930 psi
Lift Cylinder, Double Acting - Bore and Stroke
101.6 mm × 627 mm (4 in × 24.7 in)
Pump Flow at 2,111 rpm
23.5 gal/min
Main Relief Pressure
3190 psi

Cab - Standard

Machine Sound Level (ISO 6395) Tier 4/Stage IV
111 dB(A)
Operator Sound Level - ISO 6396
71 dB(A)
Machine Sound Level (ISO 6395) Tier 3/Stage IIIA Equivalent
112 dB(A)

Hydraulic System - Steering

Steering Pressure Limited
4003 psi
Stroke
23.5 in
Bore
4 in
Steering System - Circuit
Closed Center Load Sensing
Vehicle Articulation Angle
84 degrees
Maximum System Flow
147 L/min @ 2,111 rpm (38.8 gal/min @ 2,111 rpm)
Steering System - Pump
Piston – Variable Displacement

Cab - Suppression

Machine Sound Level (ISO 6395) Tier 4/Stage IV
109 dB(A)
Operator Sound Level - ISO 6396
70 dB(A)
Machine Sound Level (ISO 6395) Tier 3/Stage IIIA Equivalent
110 dB(A)

Brakes

Parking Brake
Drum and Shoe, Spring Applied, Hydraulic Released