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The Cat® 315 excavator offers superior performance in a compact design. Standard, easy-to-use Cat technologies boost operator efficiencies and improve jobsite productivity while a large, ergonomic cab provides a comfortable working environment. Combined with simplified maintenance points, the 315 keeps you working, quickly and efficiently.

Cat Specs


Operating Weight
34000 lb


Net Power - ISO 9249 (DIN)
110 hp (metric)
Engine Power - ISO 14396
110 HP
Engine Power - ISO 14396 (DIN)
111 hp (metric)
4 in
5 in
Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 2,400 rpm. Advertised power is t
220 in²
Note (2)
¹Cat 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 (f
Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.
Engine Model
Cat C3.6
Net Power - ISO 9249
108 HP

Service Refill Capacities

Hydraulic Tank
19 gal (US)
Fuel Tank Capacity
49 gal (US)
Hydraulic System - Including Tank
22.5 gal (US)
Final Drive - Each
1 gal (US)
Engine Oil
2 gal (US)
Cooling System
4 gal (US)

Hydraulic System

Maximum Pressure - Equipment
5075 psi
Maximum Pressure - Travel
5075 psi
Main System - Maximum Flow
276 l/min (73 gal/min)
Maximum Pressure - Swing
3770 psi

Swing Mechanism

Swing Speed
12 r/min
Maximum Swing Torque
25815 lb/ft


Ground Clearance
1.4 in
Tail Swing Radius
5.1 in
Counterweight Clearance
2.8 in
Track Length
12.3 in
Transport Width
8.1 in
Shipping Length
24.7 ft
Track Gauge
6.5 in

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 0.8 hg of refrigerant which has a CO2 equiv