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315 Hydraulic Excavator

315 Hydraulic Excavator

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.

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Net Power - ISO 9249108HP

Net Power - ISO 9249 (DIN)110hp (metric)

Engine ModelCat C3.6

Engine Power - ISO 14396110HP

Engine Power - ISO 14396 (DIN)111hp (metric)




Biodiesel CapabilityUp to B20¹

EmissionsMeets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.

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 tested per the specified standard in effect at the time

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 (fatty acid methyl ester)* or 100% renewable diesel, HVO

Operating Weight34000lb

Maximum Digging Depth19.6ft

BoomReach 4.65 m (15'3")

StickReach R3.0 m (9'10")

BucketGD 0.53 m³ (0.69 yd³)

Maximum Reach at Ground Level28.5ft

Maximum Cutting Height31.7ft

Maximum Loading Height23.6ft

Minimum Loading Height6.8ft

Maximum Depth Cut for 2440 mm (8 ft) Level Bottom19ft

Maximum Vertical Wall Digging Depth16.9ft

Minimum Working Equipment Radius7.3ft

Bucket Digging Force - ISO22180lbf

Stick Digging Force - ISO13330lbf

Main System - Maximum Flow276 l/min (73 gal/min)

Maximum Pressure - Equipment5075psi

Maximum Pressure - Travel5075psi

Maximum Pressure - Swing3770psi

Swing Speed12r/min

Maximum Swing Torque25815ft·lbf

Fuel Tank Capacity49gal (US)

Cooling System4gal (US)

Engine Oil2gal (US)

Final Drive - Each1gal (US)

Hydraulic System - Including Tank22.5gal (US)

Hydraulic Tank19gal (US)

DEF Tank6gal (US)

BoomReach 4.65 m (15'3")

StickReach R3.0 m (9'10")

BucketGD 0.53 m³ (0.69 yd³)

Shipping Height - Top of Cab9.2ft

Handrail Height9.3ft

Shipping Length24.7ft

Shipping Length - with Blade26.5ft

Tail Swing Radius5.1ft

Counterweight Clearance2.8ft

Ground Clearance1.4ft

Track Length12.3ft

Length to Center of Rollers9.9ft

Track Gauge6.5ft

Transport Width8.1ft

Air ConditioningThe 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 equivalent of 1.144 metric tonnes.



Standard and optional equipment may vary. Consult your Cat dealer for details.


Standard and optional equipment may vary. Consult your Cat dealer for details.


Rollover Protective Structure (ROPS)


Deluxe cab: air suspension heated seat, 254 mm (10") touchscreen monitor

Premium cab: air suspension heated and cooled seat, 10" touchscreen monitor

Cat Stick Steer

Auxiliary relay



Remote Flash

Remote Troubleshoot

Cat Grade with 2D

Cat Assist

Cat Payload

2D E-Fence


Cat Grade 2D with Attachment Ready Option (ARO)

Cat Grade with 3D single GNSS

VisionLink Productivity

Cat Grade with 3D dual GNSS


Maintenance free battery

LED chassis light, left-side/right-side boom lights, cab lights

Programmable time-delay LED working lights


360° lighting


Cat C3.6 single turbo diesel engine

One-touch low idle with auto engine speed control

Auto engine shutdown

52°C (125°F) high-ambient cooling capacity without de-rate

-25°C (-13°F) cold start capability

Electric fuel priming pump

Variable speed fan

Single fuel filtration system

Double element air filter with integrated precleaner


Boom and stick regeneration circuit

Auto hydraulic warm up

Auto two speed travel

Electric main control valve

Boom and stick drift reduction valve

Electric boom snubber

Auxiliary line support


Boom and stick lowering check valves


Rear and right-side-view cameras

Ground-level engine shutoff switch

Service platform with anti-skid plate and countersunk bolts

Signaling/warning horn


Cat Detect - People Detection

Cat Command remote control

360° visibility

Swing alarm

Inspection lighting


Grouped engine oil and fuel filters

Ground-level engine oil dipstick

Sampling ports for Scheduled Oil Sampling (S·O·S)

Integrated vehicle health management system


Grease lubricated track link

Tie down points on base frame

3830 kg (8,440 lb) counterweight


500 mm (20 in) triple grouser shoes

500 mm (20") rubber track shoes

500 mm (20 in) triple grouser shoes with rubber pad

600 mm (24 in) triple grouser shoes

600 mm (24") rubber track shoes

700 mm (28 in) triple grouser shoes

770 mm (30 in) triple grouser shoes

2500 mm (8'2") blade

2600 mm (8'6") blade

2700 mm (8'10") blade


4.65 m (15'3") Reach boom

2.4 m (7'8") stub + 2.44 (8'0") fore Variable Angle boom

4.27 m (14'4") Power Offset boom

2.2 m (7'3") Reach stick

2.5 m (8'2") Reach stick

2.8 m (9'2") Reach stick

2.8 m (9'2") Thumb Ready stick

3.0 m (9'10") Reach stick

View used options

See Available Used options



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