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.
Work fast with help from high swing torque and low fuel consumption, along with versatility with the tiltrotator integration.
Long life filters for fuel, hydraulic oil, and air, 100 percent daily ground level check, and centralized grease points with an autolube option help lower your overall costs.
Operate with ease. Deluxe and Premium cab options with an ergonomic control layout and comfortable seat help you work comfortably all shift long.
The M318 emits less CO₂ than the previous M318F.
| Engine Power - ISO 14396 | 174 hp |
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| Engine Power - ISO 14396 (DIN) | 176 hp (metric) |
| Engine Model | Cat® C4.4 |
| Net Power - ISO 9249 | 171 hp |
| Net Power - ISO 9249 (DIN) | 174 hp (metric) |
| Bore | 4.1 in |
| Stroke | 5 in |
| Displacement | 268.5 in³ |
| 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 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) and are compatible* with 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). |
| Maximum Travel Speed | 21.7 mile/h |
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| Main System - Maximum Flow - Implement | 67 gpm |
|---|---|
| Maximum Pressure - Implement Circuit - Normal | 5076 psi |
| Maximum Pressure - Implement Circuit - Heavy Lift | 5366 psi |
| Maximum Pressure - Implement Circuit - Travel Circuit | 5076 psi |
| Maximum Swing Speed* | 9.4 r/min |
|---|---|
| Maximum Swing Torque | 34739 lbf·ft |
| Note (1) | *For CE-marked machine default value may be set lower. |
| Operating Weight Maximum | 43980 lb |
|---|---|
| Operating Weight Minimum | 37700 lb |
| 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. |
| Fuel Tank | 92.5 gal (US) |
|---|---|
| Diesel Exhaust Fluid (DEF) | 5.3 gal (US) |
| Cooling System | 8.5 gal (US) |
| Hydraulic Tank | 31.7 gal (US) |
| Hydraulic System - Including Tank | 68.7 gal (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 | 11 ft |
| Shipping Length | 27.4 ft |
| Support Point | 10.1 ft |
| Tail Swing Radius | 7.7 ft |
| Counterweight Clearance | 4.3 ft |
| Ground Clearance | 1.1 ft |
| Undercarriage Length | 16.6 ft |
| Wheel Base | 8.9 ft |
| 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 | 33.7 ft |
| Maximum Loading Height | 24 ft |
| Maximum Digging Depth | 19.3 ft |
| Maximum Vertical Wall Digging Depth | 15.1 ft |
| Maximum Reach at Ground Line | 30.2 ft |
| Stick Forces (ISO) | 16861 lbf |
| Bucket Forces (ISO) | 26752 lbf |
| 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 of 1378 mm (4'6"). |
| 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 contains 1.0 kg (2.2 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.8 kg (1.8 lb) of refrigerant which has a CO2 equivalent of 0.0004 metric tonnes (0.0004 tons). |
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| Recyclability | 92% |
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