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317 GC Hydraulic Excavator

Net Power - ISO 9249

119 HP

Operating Weight

38000 lb

Maximum Digging Depth

21 ft


The Cat® 317 GC Excavator offers job-matched performance and world-class versatility. A large working envelope and expanded work tool offering help you complete your work quickly and efficiently. Combined with fuel-saving features, longer maintenance intervals, and simplified maintenance points, the 317 GC provides the reliability you expect at the low cost-per-hour you need.



  • Stick Steer for Cat® Excavators

360° View


317 GC Exterior 360° View


317 GC Interior 360° View


317 GC Virtual Product Tour



  • Engine
    Spec Value
    Net Power - ISO 9249 119 HP
    Engine Model Cat C3.6
    Engine Power - ISO 14396 121 HP
    Engine Power - ISO 14396 (DIN) 122 hp (metric)
    Net Power - ISO 9249 (DIN) 121 hp (metric)
    Bore 4 in
    Stroke 5 in
    Displacement 220 in³
    Biodiesel Capability Up to B20¹
    Emissions Meets U.S. EPA Tier 4 Final and EU Stage V 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 of manufacture.
    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 (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels.Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations“ (SEBU6250) for details. * Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
  • Hydraulic System
    Spec Value
    Main System - Maximum Flow 296 L/min (78 gal/min)
    Maximum Pressure - Equipment 5076 psi
    Maximum Pressure - Travel 5076 psi
    Maximum Pressure - Swing 3741 psi
  • Swing Mechanism
    Spec Value
    Swing Speed 8.7 r/min
    Maximum Swing Torque 44991 ft·lbf
  • Weights
    Spec Value
    Operating Weight 38000 lb
  • Service Refill Capacities
    Spec Value
    Fuel Tank Capacity 71.6 gal (US)
    Cooling System 5.8 gal (US)
    Engine Oil 2.9 gal (US)
    Final Drive - Each 1.6 gal (US)
    Hydraulic System - Including Tank 24.8 gal (US)
    Hydraulic Tank 23 gal (US)
    DEF Tank 5.9 gal (US)
  • Dimensions
    Spec Value
    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 9.6 ft
    Handrail Height 9.6 ft
    Shipping Length 28.1 ft
    Tail Swing Radius 8.2 ft
    Counterweight Clearance 3.3 ft
    Ground Clearance 1.4 ft
    Track Length 13 ft
    Length to Center of Rollers 10.4 ft
    Track Gauge 6.5 ft
    Transport Width 8.5 ft
  • Working Ranges & Forces
    Spec Value
    Maximum Digging Depth 21 ft
    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 29.6 ft
    Maximum Cutting Height 29.1 ft
    Maximum Loading Height 20.6 ft
    Minimum Loading Height 6.5 ft
    Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 20.2 ft
    Maximum Vertical Wall Digging Depth 16.3 ft
    Minimum Working Equipment Radius 9.6 ft
    Bucket Digging Force - ISO 27650 lbf
    Stick Digging Force - ISO 16860 lbf
  • Air Conditioning System
    Spec Value
    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.


  • 5.1 m (16'9") Reach Boom


  • Rollover protective structure (ROPS)
  • Comfort Cab: mechanical suspension seat, 203 mm (8") LCD touchscreen monitor


  • VisionLink®
  • Remote Flash
  • Remote Troubleshoot


  • Maintenance free battery
  • LED chassis light and left-side boom light
  • Programmable time-delay LED working lights
  • Centralized electrical disconnect switch


  • Cat C3.6 single turbo diesel engine
  • Two selectable modes: Power, Smart
  • Automatic engine speed control
  • Automatic engine shutdown
  • Electric fuel priming pump
  • Electric cooling fans
  • Single fuel filtration system with water separator and indicator
  • Sealed double element air filter with integrated precleaner
  • Biodiesel capability up to B20


  • Boom and stick regeneration circuits
  • Auto hydraulic warm up
  • Auto two-speed travel
  • Electric main control valve
  • Boom and stick drift reduction valve
  • Boom and stick lowering check valve
  • Element-type main hydraulic filter
  • Single-type electronic main pump


  • 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
  • Auto hammer stop


  • 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)
  • Integrated vehicle health management system


  • Grease lubricated track link
  • Tie down points on base frame
  • ISO 15818:2017 Tie down points on base frame
  • 2500 mm (8'2") blade
  • 2600 mm (8'6") blade
  • 2700 mm (8'10") blade

Optional Equipment


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


  • 2.6 m (8'6") Reach stick
  • 2.9 m (9'6") Reach stick
  • 2.9 m (9'6") Thumb ready stick
  • 3.1 m (10'2") Reach stick


  • VisionLink Productivity


  • LED chassis light, right-side boom light and cab lights


  • -18°C (-0°F) cold start capability
  • -25°C (-13°F) cold start capability


  • Swing alarm
  • Inspection lighting


  • Integrated vehicle health management system


  • 500 mm (20") triple grouser track shoes
  • 600 mm (24") triple grouser track shoes
  • 600 mm (24") rubber track shoes
  • 700 mm (28 in) triple grouser track shoes
  • 790 mm (31") triple grouser track shoes
  • 3.05 mt (6,720 lb) counterweight
  • 3.57 mt (7,870 lb) counterweight