The Cat® M318 Wheel Excavator helps provide top performance with high swing torque, featuring versatility with Cat tiltrotator (TRS) integration and advanced hydraulics. Long service intervals and 100 percent daily ground level check, help save time and money with less maintenance costs. The M318 helps give you the power to work long while keeping money in your pocket.
Engine Power - ISO 14396 174 hp
Operating Weight Maximum 43980 lb
Maximum Travel Speed 21.7 mile/h
Engine Power - ISO 14396 (DIN) 176 hp (metric)
Biodiesel Capability Up to B20¹
Bore 4.1in
Displacement 268.5in³
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Korea Stage V emission standards.
Engine Model Cat® C4.4
Engine Power - ISO 14396 174hp
Engine Power - ISO 14396 (DIN) 176hp (metric)
Net Power - ISO 9249 171hp
Net Power - ISO 9249 (DIN) 174hp (metric)
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan with engine speed at 2,200 rpm. Advertised power is tested p
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
Stroke 5in
Note (1) Operating weight includes full fuel tank, operator, bucket 610 kg (1,340 lb), and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2.5 m (8' 2") medium stick and 3700 kg (8,157 lb) counterweight.
Operating Weight Maximum 43980lb
Operating Weight Minimum 37700lb
Maximum Travel Speed 21.7mile/h
Main System - Maximum Flow - Implement 67gal/min
Maximum Pressure - Implement Circuit - Heavy Lift 5366psi
Maximum Pressure - Implement Circuit - Normal 5076psi
Maximum Pressure - Implement Circuit - Travel Circuit 5076psi
Maximum Swing Speed* 9.4r/min
Maximum Swing Torque 34739lbf·ft
Note (1) *For CE-marked machine default value may be set lower.
Cooling System 8.5gal (US)
Diesel Exhaust Fluid (DEF) 5.3gal (US)
Fuel Tank 92.5gal (US)
Hydraulic System - Including Tank 68.7gal (US)
Hydraulic Tank 31.7gal (US)
Boom Variable Adjustable Boom 5.2 m (17'1")
Bucket GD 0.91 m³ (1.19 yd³)
Counterweight Clearance 4.3ft
Ground Clearance 1.1ft
Shipping Height - Top of Cab 11ft
Shipping Length 27.4ft
Stick 2.5 m (8' 2")
Support Point 10.1ft
Tail Swing Radius 7.7ft
Undercarriage Length 16.6ft
Wheel Base 8.9ft
Boom Variable Adjustable Boom 5.2 m (17'1")
Bucket GD 0.91 m³ (1.19 yd³)
Bucket Forces (ISO) 26752lbf
Maximum Cutting Height 33.7ft
Maximum Digging Depth 19.3ft
Maximum Loading Height 24ft
Maximum Reach at Ground Line 30.2ft
Maximum Vertical Wall Digging Depth 15.1ft
Note (1) Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1484 mm (4'10"). Force values are calculated with heavy lift on, a GD bucket (pin-on), and a tip radius o
Stick 2.5 m (8' 2")
Stick Forces (ISO) 16861lbf
Note The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).
Recyclability 92%
Standard and optional equipment may vary. Consult your Cat dealer for details.
Sound-suppressed ROPS cab
Keyless push-to-start engine control
Height-adjustable console, infinite with no tool
High-resolution 254 mm (10 in) LCD touchscreen monitor
VisionLink
Remote Flash and Remote Troubleshoot
Power mode selector
One-touch low idle with automatic engine speed control
Automatic Engine Idle Shutdown
52°C (125°F) high-ambient cooling capacity
Cold start capability -18°C (0°F)
Double element air filter with integrated pre-cleaner
Programmable time-delay LED working lights
Roading and indicator lights, front and rear
Maintenance free batteries
Centralized electrical disconnect switch
Automatic hydraulic oil warmup
Heavy lift mode
Boom, stick, and bucket drift reduction valves
Rear and right-side view cameras
Wide angle mirrors
Lockable disconnect switch
Anti-skid plate and countersunk bolts on service platform
Signal/warning horn
Integrated vehicle health management system
Scheduled Oil Sampling (S·O·S℠) ports
Automatic brake/axle lock
All-wheel drive
Standard and optional equipment may vary. Consult your Cat dealer for details.
5100 mm (16'9") One-piece boom
5205 mm (17'1") Variable Adjustable boom
2200 mm (7'3") stick (All regions except N Am)
2500 mm (8'2") stick
2900 mm (9'6") stick (All regions except S Korea)
Operator Protective Guards (OPG)
Cat Grade with 2D
Cat Grade with 2D with Attachment Ready Option (ARO)
Laser catcher
Cat Grade 3D ready
Cat Grade Connectivity
Cat Grade with Assist
Cat Payload
Cat Tiltrotator (TRS) integration
LED lights on chassis (left-hand, right-hand) and counterweight
Electrical refueling pump
Boom/stick lowering check valves
Bucket cylinder check valves
One-slider joysticks
Two-slider joysticks
Joystick steering
360° visibility
Inspection lighting
2D E-fence
Cab avoidance
Automatic lubrication system for implement and swing system
10.00-20 16 PR, dual tires
315/70R22.5, no gap dual tires (All regions except N Am)
445/70R 19.5, single tires
300-80-22.5 dual pneumatic, spacerless tires (Europe only)
3700 kg (8,157 lb) counterweight (Europe only)
4200 kg (9,259 lb) counterweight
