M315 Wheeled Excavator



Technical Specifications
Benefits and Features
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The Cat® M315 Wheeled Excavator provides top performance to get the job done faster. Save time and money with low maintenance costs, longer service intervals, and 100 percent daily ground level maintenance. The compact radius design makes it easy to work in space restricted environments. The M315 gives you the power to work longer while putting money in your pocket.

Engine Model C4.4
Engine Power - ISO 14396 148 HP
Net Power - ISO 9249 145 HP
Bore 4.1 in
Stroke 127 mm
Displacement 268.5 in³
Machine Weight
Operating Weight Maximum 39680 lb
Operating Weight Minimum 34610 lb
Maximum Travel Speed 21.7 mile/h
Forward/Reverse - 1st Gear 6.2 mile/h
Forward/Reverse - 2nd Gear 21.7 mile/h
Creeper Speed - 1st Gear 3.4 mile/h
Creeper Speed - 2nd Gear 9.3 mile/h
Drawbar Pull 23380 lbf
Hydraulic System
Main System - Maximum Flow - Implement 73 gal/min
Maximum Pressure - Implement Circuit - Heavy Lift 5366 psi
Maximum Pressure - Implement Circuit - Travel Circuit 5076 psi
Maximum Pressure - Implement Circuit - Normal 5076 psi
Swing Mechanism
Maximum Swing Torque 30340 ft·lbf
Swing Speed 9.1 r/min
Service Refill Capacities
Fuel Tank 74 gal (US)
Diesel Exhaust Fluid (DEF) 5.3 gal (US)
Cooling System 24 l
Hydraulic Tank 23.8 gal (US)
Hydraulic System - Including Tank 58.1 gal (US)
Boom VA 5.2 m (17'1")
Stick 2.5m (8'2")
Bucket GD 0.76 m³ (0.99 yd³ )
Shipping Height - Top of Cab 10.9 ft
Support Point 10.1 ft
Shipping Length 25.1 ft
Tail Swing Radius 5.9 ft
Counterweight Clearance 4.2 ft
Ground Clearance 1.5 ft
Undercarriage Length 16 ft
Wheel Base 8.4 ft
Working Ranges and Forces
Boom Type VA 5.2 m (17'1")
Stick 2.5m (8'2")
Bucket GD 0.76 m³ (0.99 yd³ )
Dump Height 25.2 ft
Digging Height 18.4 ft
Reach at Ground Level 29.6 ft
Vertical Wall Digging Depth 15 ft
Stick Forces (ISO) 15961 lbf
Bucket Forces (ISO) 23830 lbf
working Ranges and Forces
Cutting Height 34.2 ft


  • Cat Payload helps you achieve precise load targets to improve your operating efficiency. Pick up a load of material--with a bucket and thumb combination or grapple and clamshell attachments--and get a real-time weight estimate without swinging.
  • New optional auxiliary relay powers on and turns off CB radios, beacon lights, and other attachments without you taking your hands off the joysticks.
  • Remote Flash and Remote Troubleshoot now standard.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 07C

High Performance with Lower Fuel Consumption

  • The Cat® C4.4 engine matches to your performance and production needs. The engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
  • Use up to 5 percent less fuel consumption over the M315F.
  • Work confidently in space-restricted areas. Dig, swing, and dump within a tight working space.
  • Travel more easily between sites with travel speeds up to 35 kph (21.7 mph).
  • From dirt to asphalt, the excavator matches your needs to get the job done in a timely, efficient manner.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise working requirements.
  • With up to 10 percent more swing torque, you can get the job done faster to move on to the next one. The dedicated swing pump provides consistent power for better multitasking capabilities.
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
  • Don't let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 52°C (125°F) and cold start capability of -18°C (0°F).

Work in Comfort

  • Choose between Deluxe and Premium cab options.
  • The Deluxe seat is heated and air adjustable while the Premium seat is heated, ventilated, and adjusts automatically.
  • Tip-up left console makes it easier to get in and out of the cab.
  • Feel more comfortable in the cab while you work with reduced cab vibrations from advanced viscous mounts.
  • Control the excavator comfortably with easy-to-reach controls, all located in front of you.
  • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, bottle holder, and coat hook are also provided.
  • Bluetooth® integrated radio allows for seamless mobile phone connection to listen to music, podcasts, and hands-free calling.
  • Easily adjust the climate control system using the touchscreen monitor or jog dial.


  • Access daily maintenance points from ground level.
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the pushbutton starting feature.
  • The standard ROPS cab meets ISO 12117-2:2008 requirements.
  • Enlarged windows and improved machine layout increase visibility from the seat of the cab compared to the M315F. Rearview and side-view cameras are standard.
  • The service platform design provides easy, safe, and quick access to the upper service platform; the service platform steps use anti-skid punch plate to prevent slipping
  • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.
  • Swing lock prevents front linkage from moving as you travel.
  • Ground-level shutoff switch stops all fuel to the engine when activated and shuts down the machine.

Lower Maintenance Costs

  • Quickly check and service your machine with all daily maintenance points accessible from ground level.
  • Check the engine oil level quickly and safely from the ground.
  • Save up to 10 percent in maintenance parts with the new, longer lasting filters.
  • Track your machine's filter life and maintenance intervals on the in-cab monitor.
  • Two levels of fuel filtration protect the engine from fuel contamination.
  • The new hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000-hour replacement interval - 50 percent longer than previous filter designs.
  • Scheduled Oil Sampling (S·O·SSM) ports are located at ground level, simplifying maintenance, and allowing for quick, easy extraction of fluid samples for analysis.

Simple to Operate

  • Start the engine with the push-to-start button, a Bluetooth key fob, or the unique Operator ID function.
  • Program your power mode and joystick preferences using Operator ID; the excavator remembers your settings each time you go to work.
  • Navigate quickly on the standard high-resolution 254 mm (10 inch) touchscreen monitor or with the aid of the jog dial control.
  • The auto axle lock presses the pedal for you to reduce your overall number of actions. The machine automatically detects when the service brake and axle need to be locked or unlocked. It releases automatically when you press the travel pedal.

Boost Efficiency and Productivity with Integrated Cat Technologies

  • Boost productivity versus traditional grading with optional Cat Grade with 2D system.
  • Optional Cat Payload on-board weighing system: Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.
  • Combine Payload with VisionLink® and remotely manage your production targets or take payload data with you. The monitor's USB port lets you download your results from one shift all the way up to 30 days of work so can manage your progress without needing an internet connection or VisionLink subscription.
  • Upgrade to optional Cat Grade with Advanced 2D: Create and edit grade designs with ease on a second high-resolution 254 mm (10 in) touchscreen monitor.
  • Upgrade to optional Cat Grade with 3D: Create and edit designs with ease and see the front linkage's full range of motion on a second high-resolution touchscreen monitor.
  • Optional 2D E-fence is integrated right out of the factory to prevent the excavator from moving outside operator defined set points.
  • All Cat Grade systems are compatible with radios and base stations from Trimble, Topcon, and Leica. Already invested in a grade infrastructure? You can install grade systems from Trimble, Topcon, and Leica onto the machine.

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cab
    • ROPS, sound suppression
    • High-resolution 254 mm (10 in) LCD touchscreen monitor
  • Cat Technology
    • Cat Product Link
  • Cat Technologies
    • Remote Flash/Troubleshoot capability
  • Engine
    • Cat C4.4 engine
    • Power mode selector
    • One-touch low idle with auto engine speed control
    • Auto engine idle shutdown
    • 52°C (125°F) high-ambient cooling capacity
    • -18°C (0°F) cold start capability
    • Sealed double element air filter with integrated precleaner
    • Electric fuel priming pump
    • Biodiesel capability up to B20
  • Hydraulic System
    • Automatic swing brake
    • Auto hydraulic oil warm up
    • Electronic main control valve
    • Boom, stick, and bucket drift reduction valves
    • 1-slider joystick
    • Heavy lift mode
    • Separate dedicated swing pump
    • Adjustable hydraulic aggressiveness
    • Electronic pattern changer
    • Auxiliary high pressure circuit
  • Boom And Sticks
    • 5.2 m (17'1") variable adjustable boom
  • Undercarriage And Structures
    • Creeper speed
    • Electronic swing and travel lock
    • Heavy-duty axles, advanced disc brake system and travel motor, adjustable braking force
    • Oscillating front axle, lockable, with remote greasing point
    • Automatic brake/axle lock
    • 4000 kg (8,820 lb) counterweight
    • All wheel drive
  • Electrical System
    • LED lights on chassis (left-hand, right-hand) and counterweight
    • Programmable time-delay LED working lights
    • Roading and indicator lights, front and rear
    • Maintenance-free batteries
    • Centralized electrical disconnect switch
  • Service And Maintenance
    • Sampling ports for Scheduled Oil Sampling (S•O•S)
  • Safety And Security
    • Rear- and right-side-view cameras
    • Wide angle mirrors
    • Ground-level engine shutoff switch
    • Anti-skid plate and countersunk bolts on service platform

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cab
    • Deluxe cab
    • Premium cab
    • Auxiliary relay
  • Cat Technologies
    • Cat Grade with 2D
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D
    • Payload
    • 2D E-Fence
  • Hydraulic System
    • 2-slider joystick
    • Second high-pressure auxiliary circuit (one/ two-way high-pressure flow)
    • Medium pressure auxiliary circuit (one/two-way medium-pressure flow)
    • Quick coupler circuit
    • SmartBoom
    • Ride control
    • Cat tiltrotator support
    • Joystick steering
  • Boom And Sticks
    • 2.2 m (7'3") stick
    • 2.5 m (8'2") stick
  • Undercarriage And Structures
    • 10.00-20 16 PR, dual tires
    • 315/70R22.5, no gap dual tires
    • 445/70R 19.5, single tires
  • Electrical System
    • Electrical refueling pump
  • Service And Maintenance
    • Automatic lubrication system for implement and swing system
  • Safety And Security
    • 360° visibility
    • Cat asset tracker
    • Signaling/warning horn

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