317 Hydraulic Excavator

The 317 Hydraulic Excavator boosts productivity on your jobsite. Standard, easy-to-use Cat® technologies, performance upgrades, and low fuel and maintenance costs allow you to move material all day with speed and precision while keeping more money in your pocket.

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Net Power - ISO 9249 130HP
Engine Model Cat C4.4
Engine Power - ISO 14396 131HP
Bore 4in
Stroke 5in
Displacement 269in³


Operating Weight 40200lb

Working Ranges & Forces

Maximum Digging Depth 21ft
Boom Reach 5.1 m (16'9")
Stick Reach R2.9 m (9'6")
Bucket GD 0.76 m³ (0.99 yd³)
Maximum Reach at Ground Level 29.6ft
Maximum Cutting Height 29.1ft
Maximum Loading Height 20.6ft
Minimum Loading Height 6.5ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 20.2ft
Maximum Vertical Wall Digging Depth 16.3ft
Minimum Working Equipment Radius 9.6ft
Bucket Digging Force - ISO 27650lbf
Stick Digging Force - ISO 16860lbf

Hydraulic System

Main System - Maximum Flow 296 L/min (78 gal/min)
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Travel 5076psi
Maximum Pressure - Swing 3741psi

Swing Mechanism

Swing Speed 8.7r/min
Maximum Swing Torque 44990ft·lbf

Service Refill Capacities

Fuel Tank Capacity 71.6gal (US)
Cooling System 7.4gal (US)
Engine Oil 4gal (US)
Final Drive - Each 1.6gal (US)
Hydraulic System - Including Tank 24.8gal (US)
Hydraulic Tank 23gal (US)
DEF Tank 5.9gal (US)


Boom Reach 5.1 m (16'9")
Stick Reach R2.9 m (9'6")
Bucket GD 0.76 m³ (0.99 yd³)
Shipping Height - Top of Cab 9.6ft
Handrail Height 9.6ft
Shipping Length 28.1ft
Tail Swing Radius 8.2ft
Counterweight Clearance 3.3ft
Ground Clearance 1.4ft
Track Length 13ft
Length to Center of Rollers 10.4ft
Track Gauge 6.5ft
Transport Width 8.8ft

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 0.9 hg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
Boom And Sticks
  • 5.1 m (16'9") Reach Boom
  • ROPS, sound suppression
  • Deluxe Cab: air suspension heated seat, 10" touch screen monitor
Cat Technologies
  • Cat Product Link
  • Cat Grade with 2D
  • Cat Payload
  • Cat Assist
  • 2D E-Fence
  • Remote Flash capability
  • Remote Troubleshoot capability
  • Work tool recognition
  • Work tool tracking
  • Auto hammer stop
Electrical System
  • Maintenance free battery
  • LED chassis light, left-side/right-side boom lights, cab lights
  • Programmable time-delay LED working lights
  • C4.4 Tier 4 Final diesel engine
  • One-touch low idle with automatic engine speed control
  • Automatic engine shutdown
  • Electric fuel priming pump
  • Two-stage fuel filtration system with water separator and indicator
  • Sealed double element air filter with integrated precleaner
  • Electric cooling fans
  • Biodiesel capability up to B20
Hydraulic System
  • Boom and stick regeneration circuit
  • Auto hydraulic warm up
  • Auto two speed travel
  • Electric main control valve
  • Boom and stick drift reduction valve
  • Element-type main hydraulic filter
  • Single-type electronic main pump
Safety And Security
  • Rear and right-side-view cameras
  • Ground-level engine shutoff switch
  • Service platform with anti-skid plate and countersunk bolts
  • Signaling/warning horn
  • Hydraulic lock out lever
Service And Maintenance
  • Side entry to service platform
  • Grouped engie oil and fuel filters
  • Ground-level engine oil dipstick
  • Sampling ports for Scheduled Oil Sampling (S·O·S)
Undercarriage And Structures
  • Grease lubricated track link
  • Tie down points on base frame

Optional Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cat Stick Steer
Boom And Sticks
  • R2.6 m (8'6") stick
  • R2.9 m (9'6") stick
  • 2.9 m (9'6") thumb ready stick
  • R3.1 m (10'2") stick
Cat Technologies
  • Cat Grade with Advanced 2D
  • Cat Grade with 3D
Electrical System
  • 360° lighting
  • -18°C (-0°F) cold start capability
  • -25°C (-13°F) cold start capability
Hydraulic System
  • Boom and stick lowering check valves
Safety And Security
  • 360° visibility
Undercarriage And Structures
  • 600 mm (24 in) triple grouser shoes
  • 600 mm (24 in) rubber track shoe
  • 700 mm (28 in) triple grouser shoes
  • 3.05 mt (6,720 lb) counterweight
  • 3.57 mt (7,870 lb) counterweight