Overview
The Caterpillar M318D Mobile Excavator is a mobile excavator listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 166 hp, operating weight of 43651.6 lb, working depth of 18.87 ft, reach of 29.43 ft, capacity of 1.0 yd³ and travel speed of 23.0 mph. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Caterpillar M318D Mobile Excavator against similar mobile excavator models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
44,313
lb
Net Power
164
hp
Gross Power
174
hp
Max Digging Depth
18.87
ft
Full Specifications
104 specs
Dimensions
Ground Clearance
1.22 ft / 0.37 m
Height to Top of Cab
10.41 ft / 3.17 m
Max Cutting Height
31.86 ft / 9.71 m
Max Digging Depth
18.87 ft / 5.75 m
Max Loading Height
21.99 ft / 6.70 m
Max Reach Along Ground
29.43 ft / 8.97 m
Max Vertical Wall Dig Depth
10.57 ft / 3.22 m
One-piece Boom / stick 2.2m
4
Overall Width
8.37 ft / 2.55 m
Overall Width - Outriggers Down
12.54 ft / 3.82 m
Shipping Height Of Unit
10.41 ft / 3.17 m
Shipping Length Of Unit
29.11 ft / 8.87 m
System
67 gal (US)
Tail Swing Radius
8.21 ft / 2.50 m
Upper Structure Clearance
4.20 ft / 1.28 m
VA Boom / stick 2.2m
2
VA Boom / stick 2.8m
3
Wheelbase
8.54 ft / 2.60 m
Engine
Alternator Supplied Amperage
75 A
Bore
4.20 in / 107 mm
Cat C6.6 with ACERT Technology
Maximum Torque - 1,400 Rpm
Cooling System Fluid Capacity
8.50 gal / 32.2 L
Counterweight
8,810 lb / 3,996 kg
Creeper Speed - 1st Gear
2
Creeper Speed - 2nd Gear
8
Cylinders
6
Displacement
403 cu in / 6.6 L
Dozer Blade
1,700 in / 43,180 mm
Engine Make
2236
Engine Model
C6.6 Acert
Engine Oil Capacity
4 gal / 15.1 L
Final Drive
0.7
Forward/Reverse - 1st Gear
5
Forward/Reverse - 2nd Gear
23
Front Diff Fluid Capacity
2.80 gal / 10.6 L
Fuel Capacity
102 gal / 386.1 L
Fuel Tank
102 gal / 386.1 L
Gross Power
174 hp / 129.8 kW
Hydraulic Pump Flow Capacity
77 gal/min / 291.5 L/min
Hydraulic System Fluid Capacity
71 gal / 268.8 L
Hydraulic System Relief Valve Pressure
5,076 psi / 350.0 bar
Max Steering Angle
35 deg
Maximum Bucket Capacity
2.10 yd³ / 1.61 m³
Maximum Gradeability
60 %
Maximum Torque - 1,400 Rpm
596 lb-ft / 808 Nm
Minimum Bucket Capacity
0.80 yd³ / 0.61 m³
Net Power
166 hp / 123.8 kW
Net Power - 1,800 Rpm - Iso 9249
166 hp / 123.8 kW
Net Power - 80/1269/Eec
166 hp / 123.8 kW
Net Power - Iso 9249
166 hp / 123.8 kW
Net Torque
596 lb-ft / 808 Nm
Number of Cylinders
6
Number of Forward Gears
2
Number of Reverse Gears
2
One-Piece Boom* - Front And Rear Outriggers
40,896
One-Piece Boom* - Rear Dozer Only
38,250
One-Piece Boom* - Rear Dozer, Front Outriggers
40,455
Operating Weight
44,313 lb / 20,100 kg
Optional
1
Oscillating Axle Angle
9 deg
Outriggers
2,270
Ratings
1,800
Rear Diff Fluid Capacity
3.70 gal / 14.0 L
Reference Bucket Capacity
1 yd³ / 0.76 m³
Standard
1) 10.00-20 (dual pneumatic)
Sticks - Industrial (3300 Mm)
1,146
Sticks - Long (2800 Mm)
1,323
Sticks - Medium (2500 Mm)
1,279
Sticks - Short (2200 Mm)
1,213
Stroke
5 in / 127 mm
Swing Speed
10.50 deg
Swing Torque
35,403 deg
Torque Measured @
1,400 rpm
Va Boom* - Front And Rear Outriggers
42,108
Va Boom* - Rear Dozer Only
39,353
Va Boom* - Rear Dozer, Front Outriggers
41,667
Hydraulics
Maximum Flow - Auxiliary Circuit - High Pressure
66 gal/min / 249.8 L/min
Maximum Flow - Auxiliary Circuit - Medium Pressure
13 gal/min / 49.2 L/min
Maximum Flow - Implement/Travel Circuit
77 gal/min / 291.5 L/min
Maximum Flow - Swing Mechanism
30 gal/min / 113.6 L/min
Maximum Pressure - Auxiliary Circuit - High Pressure
5,076 psi / 350.0 bar
Maximum Pressure - Auxiliary Circuit - Medium Pressure
2,683 psi / 185.0 bar
Maximum Pressure - Implement Circuit - Heavy Lift
5,439 psi / 375.0 bar
Maximum Pressure - Implement Circuit - Normal
5,076 psi / 350.0 bar
Maximum Pressure - Swing Mechanism
4,496 psi / 310.0 bar
Maximum Pressure - Travel Circuit
5,076 psi / 350.0 bar
Tank Capacity
45 gal / 170.3 L
Other
Maximum Reach - Ground Level
31.50 ft / 9.60 m
Cooling
9.50
Engine Crankcase
4 gal / 15.1 L
Front Steering Axle - Differential
3 lb / 1 kg
Maximum Digging Depth
20.90 ft / 6.37 m
Maximum Travel Speed
23 mph / 37.0 km/h
Net Power
164 hp / 122.3 kW
Powershift Transmission
0.70
Rear Axle - Housing (Differential)
4 lb / 2 kg
Undercarriage
Ground Clearance
1.25 ft / 0.38 m
Max Travel Speed
23 mph / 37.0 km/h
Minimum Turning Radius - Standard Axle - End Of One-Piece Boom
27 ft / 8.23 m
Minimum Turning Radius - Standard Axle - End Of Va Boom
23 ft / 7.01 m
Minimum Turning Radius - Standard Axle - Outside Of Tire
21 ft / 6.40 m
Minimum Turning Radius - Wide Axle - End Of One-Piece Boom
28 ft / 8.53 m
Minimum Turning Radius - Wide Axle - End Of Va Boom
23 ft / 7.01 m
Minimum Turning Radius - Wide Axle - Outside Of Tire
21 ft / 6.40 m
Frequently Asked Questions
What is the operating weight of the Caterpillar M318D Mobile Excavator? +
The Caterpillar M318D Mobile Excavator has an operating weight of 44,313 lb (20,100 kg). This places it in a class suited for mobile excavator applications where ground pressure and transport weight are key considerations.
How powerful is the Caterpillar M318D Mobile Excavator engine? +
The Caterpillar M318D Mobile Excavator produces 174 hp (129.8 kW) of engine power. This output is typical for its weight class and designed to handle demanding Mobile Excavator work cycles efficiently.
What is the maximum digging depth of the Caterpillar M318D Mobile Excavator? +
The Caterpillar M318D Mobile Excavator has a maximum digging depth of 18.87 ft (5.75 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.
What is the maximum reach of the Caterpillar M318D Mobile Excavator? +
The Caterpillar M318D Mobile Excavator has a maximum reach along the ground of 29.43 ft (8.97 m), allowing it to work effectively across wide areas without repositioning.
What is the travel speed of the Caterpillar M318D Mobile Excavator? +
The Caterpillar M318D Mobile Excavator has a maximum travel speed of 23.0 mph (37.0 km/h), enabling efficient movement between work areas on the job site.
How does the Caterpillar M318D Mobile Excavator compare to similar Mobile Excavator models? +
You can compare the Caterpillar M318D Mobile Excavator side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.