Category : Excavators ➔ Manufacturer : Caterpillar ➔ Model : M318 ➔
The Caterpillar M318 is a wheeled excavator in Caterpillar's excavator lineup, designed for roadwork, utility, municipal, and general construction applications. It combines mobility with excavating capability, allowing travel between job sites without a separate transport vehicle in many cases. The M318 is typically equipped with a diesel engine, hydraulic digging system, and a cab configured for operator visibility and control. Common attachments and work tools may include buckets, thumbs, and couplers. The machine is used for trenching, lifting, loading, grading, and material handling. Specifications can vary by model year, configuration, and regional emissions requirements.
Dimensions
Caterpillar M318 Excavator Dimensions specifications
Boom
Variable Adjustable Boom 5.2 m (17'1") — Starting 2026 Model Year
Bucket
GD 0.91 m³ (1.19 yd³) — Starting 2026 Model Year
Counterweight Clearance
4.30 ft (1.31 m) — Starting 2026 Model Year
Ground Clearance
1.10 ft (0.34 m) — Starting 2026 Model Year
Height
11.00 ft (3.35 m)
Length
27.75 ft (8.46 m)
Shipping Height - Top of Cab
11.00 ft (3.35 m) — Starting 2026 Model Year
Shipping Length
27.40 ft (8.35 m) — Starting 2026 Model Year
Stick
2.5 m (8' 2") — Starting 2026 Model Year
Support Point
10.10 ft (3.08 m) — Starting 2026 Model Year
Tail Swing Radius
7.70 ft (2.35 m) — Starting 2026 Model Year
Undercarriage Length
16.60 ft (5.06 m) — Starting 2026 Model Year
Weight
43,980.00 lbs (19,949.02 kg)
Wheel Base
8.90 ft (2.71 m) — Starting 2026 Model Year
Width
8.50 ft (2.59 m)
Drive
Caterpillar M318 Excavator Drive specifications
Maximum Travel Speed
21.70 mph (34.92 kph) — Starting 2026 Model Year
Engine
Caterpillar M318 Excavator Engine specifications
Biodiesel Capability
Up to B20¹ — Starting 2026 Model Year
Bore
4.10 in (10.41 cm) — Starting 2026 Model Year
Displacement
268.50 cu in (4,399.94 cu cm) — Starting 2026 Model Year
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Korea Stage V emission standards. — Starting 2026 Model Year
Engine Model
Cat® C4.4 — Starting 2026 Model Year
Engine Power - ISO 14396
174.00 hp (129.75 kw) — Starting 2026 Model Year
Engine Power - ISO 14396 (DIN)
176.00 hp (131.25 kw) — Starting 2026 Model Year
Net Power - ISO 9249
171.00 hp (127.52 kw) — Starting 2026 Model Year
Net Power - ISO 9249 (DIN)
174.00 hp (129.75 kw) — Starting 2026 Model Year
Stroke
5.00 in (12.70 cm) — Starting 2026 Model Year
Hydraulic System
Caterpillar M318 Excavator Hydraulic System specifications
Main System - Maximum Flow - Implement
67.00 gpm (253.60 lpm) — Starting 2026 Model Year
Maximum Pressure - Implement Circuit - Heavy Lift
5366 psi — Starting 2026 Model Year
Maximum Pressure - Implement Circuit - Normal
5076 psi — Starting 2026 Model Year
Maximum Pressure - Implement Circuit - Travel Circuit
5076 psi — Starting 2026 Model Year
Machine Weight
Caterpillar M318 Excavator Machine Weight specifications
Operating Weight Maximum
43,980.00 lbs (19,949.02 kg) — Starting 2026 Model Year
Operating Weight Minimum
37,700.00 lbs (17,100.45 kg) — Starting 2026 Model Year
Service Refill Capacities
Caterpillar M318 Excavator Service Refill Capacities specifications
Cooling System
8.50 gal (32.17 l) — Starting 2026 Model Year
Diesel Exhaust Fluid (DEF)
5.30 gal (20.06 l) — Starting 2026 Model Year
Fuel Tank
92.50 gal (350.11 l) — Starting 2026 Model Year
Hydraulic System - Including Tank
68.70 gal (260.03 l) — Starting 2026 Model Year
Hydraulic Tank
31.70 gal (119.98 l) — Starting 2026 Model Year
Sustainability
Caterpillar M318 Excavator Sustainability specifications
Recyclability
92% — Starting 2026 Model Year
Swing Mechanism
Caterpillar M318 Excavator Swing Mechanism specifications
Maximum Swing Speed*
9.4 r/min — Starting 2026 Model Year
Maximum Swing Torque
34,739.00 lbs ft (47,099.14 nm) — Starting 2026 Model Year
Working Ranges And Forces
Caterpillar M318 Excavator Working Ranges And Forces specifications
Boom
Variable Adjustable Boom 5.2 m (17'1") — Starting 2026 Model Year
Bucket
GD 0.91 m³ (1.19 yd³) — Starting 2026 Model Year
Bucket Forces (ISO)
26,752.00 lbs ft (36,270.36 nm) — Starting 2026 Model Year
Maximum Cutting Height
33.70 ft (10.27 m) — Starting 2026 Model Year
Maximum Digging Depth
19.30 ft (5.88 m) — Starting 2026 Model Year
Maximum Loading Height
24.00 ft (7.32 m) — Starting 2026 Model Year
Maximum Reach at Ground Line
30.20 ft (9.20 m) — Starting 2026 Model Year
Maximum Vertical Wall Digging Depth
15.10 ft (4.60 m) — Starting 2026 Model Year
Stick
2.5 m (8' 2") — Starting 2026 Model Year
Stick Forces (ISO)
16,861.00 lbs ft (22,860.14 nm) — Starting 2026 Model Year
