M318 Wheel Excavator

Engine Power – ISO 14396

174 hp

Operating Weight Maximum

43980 lb

Maximum Travel Speed

21.7 mile/h

ABOUT THE M318

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.

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Engine Power – ISO 14396

174hp

Engine Power – ISO 14396 (DIN)

176hp (metric)

Engine Model

Cat® C4.4

Net Power – ISO 9249

171hp

Net Power – ISO 9249 (DIN)

174hp (metric)

Bore

4.1in

Stroke

5in

Displacement

268.5in³

Biodiesel Capability

Up to B20¹

Emissions

Meets U.S. EPA Tier 4 Final, EU Stage V, and Korea Stage V emission standards.

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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** or 100

Operating Weight Maximum

43980lb

Operating Weight Minimum

37700lb

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.

Maximum Travel Speed

21.7mile/h

Main System – Maximum Flow – Implement

67gpm

Maximum Pressure – Implement Circuit – Normal

5076psi

Maximum Pressure – Implement Circuit – Heavy Lift

5366psi

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.

Fuel Tank

92.5gal (US)

Diesel Exhaust Fluid (DEF)

5.3gal (US)

Cooling System

8.5gal (US)

Hydraulic Tank

31.7gal (US)

Hydraulic System – Including Tank

68.7gal (US)

Boom

Variable Adjustable Boom 5.2 m (17’1″)

Stick

2.5 m (8′ 2″)

Bucket

GD 0.91 m³ (1.19 yd³)

Shipping Height – Top of Cab

11ft

Shipping Length

27.4ft

Support Point

10.1ft

Tail Swing Radius

7.7ft

Counterweight Clearance

4.3ft

Ground Clearance

1.1ft

Undercarriage Length

16.6ft

Wheel Base

8.9ft

Boom

Variable Adjustable Boom 5.2 m (17’1″)

Stick

2.5 m (8′ 2″)

Bucket

GD 0.91 m³ (1.19 yd³)

Maximum Cutting Height

33.7ft

Maximum Loading Height

24ft

Maximum Digging Depth

19.3ft

Maximum Vertical Wall Digging Depth

15.1ft

Maximum Reach at Ground Line

30.2ft

Stick Forces (ISO)

16861lbf

Bucket Forces (ISO)

26752lbf

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

Note

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system conta

Recyclability

92%

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Cab
- 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
Cat Technology
- VisionLink^™
- Remote Flash and Remote Troubleshoot
Engine
- 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
Electrical System
- Programmable time-delay LED working lights
- Roading and indicator lights, front and rear
- Maintenance free batteries
- Centralized electrical disconnect switch
Hydraulic System
- Automatic hydraulic oil warmup
- Heavy lift mode
- Boom, stick, and bucket drift reduction valves
Safety And Security
- Rear and right-side view cameras
- Wide angle mirrors
- Lockable disconnect switch
- Anti-skid plate and countersunk bolts on service platform
- Signal/warning horn
Service And Maintenance
- Integrated vehicle health management system
- Scheduled Oil Sampling (S·O·S℠) ports
Undercarriage And Structures
- Automatic brake/axle lock
- All-wheel drive

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Boom And Sticks
- 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)
Cab
- Operator Protective Guards (OPG)
Cat Technology
- 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
Electrical System
- LED lights on chassis (left-hand, right-hand) and counterweight
- Electrical refueling pump
Hydraulic System
- Boom/stick lowering check valves
- Bucket cylinder check valves
- One-slider joysticks
- Two-slider joysticks
- Joystick steering
Safety And Security
- 360° visibility
- Inspection lighting
- 2D E-fence
- Cab avoidance
Service And Maintenance
- Automatic lubrication system for implement and swing system
Undercarriage And Structures
- 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

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Terms and Conditions

Small Excavators Big Savings: Terms and Conditions

* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

The Great Payback: Terms and Conditions

*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on select new Cat® machines listed in our Heavy Equipment Promotion page. Purchase must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The offered Cat Customer Value Agreement (CVA) includes 6 maintenance parts kits; S∙O∙SSM; and 36 month VisionLink® ConnectPro. The maintenance parts cover the first 3,000 hours^ (estimated 3 years) of machine utilization. Each kit contains one set of parts for regular planned maintenance under normal operating conditions. In some severe applications where maintenance parts need to be replaced more frequently, additional parts will be at customer’s expense. Offer excludes additional maintenance parts, dealer labor, wear parts, and fluids. Offer also includes a 36 month/5000 hour (whichever occurs first) Powertrain, Hydraulics and Technology Equipment Protection Plan (EPP). In some areas, EPP might be sold separately from the CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply. Contact your Cat dealer for details.

Compact Equipment Offer: Terms and Conditions

Financing provided by Caterpillar Financial.
*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on purchases of new mini excavators, micro excavators, skid steer loaders, and compact track loaders sold by participating Cat dealers to customers in the USA or Canada. Purchases (both machine and CVA) and machine delivery must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The credit $500 USD for CVA purchase can only be applied toward the purchase of a qualifying Cat Customer Value Agreement (CVA). CVA must be at least 2yr/1000hr and must include 1-year Preventative Maintenance Parts Kit, TA1 annual Inspection, signed CVA contract, and Product LinkTM. Amount of CVA credit is the same for all models and cannot exceed the price of the qualifying CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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