Doosan DX420LC-5 Crawler Excavator

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As a leader in the 40-50 metric ton size class, the DX420LC-5 provides solid performance, excellent fuel efficiency, an operator-focused working environment and exceptional durability to deliver consistent results.

Designed for long life with an extra-sturdy frame and reinforced superstructure, the DX420LC-5 is built for reliability. The boom design and x-chassis frame are designed for greater integrity and durability.

Bushings and ultra-hard wear disks are designed for extended service intervals and steady performance. The permanently sealed and lubricated track links maximize uptime and reduce operating costs. Monitor your Doosan heavy equipment and manage maintenance to reduce operating costs with Doosan Telematics.

Controls for machine functions are simple and placed for your convenience. Easily change the control pattern from ISO to BHL to match your preference. Two-way auxiliary hydraulics can now be controlled via a joystick switches or the new optional foot pedal control. 

Select the correct auxiliary flow rate using a switch on the control pattern. A straight travel option is ideal for straight forward and backward travel in trenching applications.


MODEL Doosan DX420LC-5
Rated Flywheel Power (Gross) 344.6 hp @ 1,800 rpm (ISO-9249)
Rated Horse Power (Net) 337.9 hp @ 1,800 rpm
Max. Torque (Net) 1176 lbf·ft @ 1,300 rpm
Engine Emissions Tier (EPA) T4
Hydraulic System  
Main Pump: Displacement 185 cm³/rev
Control Valve: Relief Valve Pressure (Normal) 330 kgf/cm²
Control Valve: Relief Valve Pressure (Boost) 350 kgf/cm²
Main Pump: Max. Flow Rate (each) 88.5 gal/min
Upper Rollers: Quantity Per Side 2
Lower Rollers: Quantity Per Side 9
Track Length 17' 0"
Track Link: Track Gauge 9' 0"
Swing Mechanism  
Swing Performance: Max Swing Torque 118332 lbf·ft
Swing Performance: Max Swing Speed (At Efficiency) 8.82 rpm
Travel System/Drive Mechanism  
Travel performance: Traction Force (Highest Value) 90169 lbf·ft
Travel performance: Traveling Speed - Low (XXX/) 1.93 mph
Travel performance: Traveling Speed - High (/XXX) 3.17 mph
Travel performance: Gradeability 70°
Operating Weight 94,799 lb
Standard Boom Length 21.98 ft
Standard Arm Length 10.66 ft
Standard Bucket Size 1.9 m³
Shoe Width 2' 7"
Shipping Height - Hose (With Attachment) 11' 4"
Shipping Length (Without Attachment) 38' 6"
Shipping Width (Standard) 11' 7"
Overall Height Over Cab 10' 4"
Working Range  
Max Digging Reach (Ground) 37' 0"
Max Digging Depth 25' 4"
Max Loading Height 25' 3"
Digging Force (ISO)  
Arm Digging Force - Pressure up 43,431 lb
Bucket Digging Force - Pressure up 59,745 lb
Arm Digging Force - Normal 41,006 lb
Refill Capacities  
Fuel Tank 169.07 gal
Hydraulic System 126.8 gal
Engine Coolant 13.47 gal
Engine Oil 11.89 gal
Hydraulic Tank 103.03 gal
Noise Level: Guaranteed Sound Power Level 106 dBA
Noise Level: Operator 72 dBA
Lift Capacity  
Lifting Capacity over front @ Horizontal Distance - 10 ft Above Ground 31,820 lb @ 20 ft
Lifting Capacity over front @ Horizontal Distance - Ground Level 37,380 lb @ 20 ft
Lifting Capacity over front @ Horizontal Distance - 10 ft Below Ground 35,010 lb @ 20 ft


WARNING: This product can expose you to chemicals including engine exhaust (including diesel engine exhaust when equipped), lead and lead compounds, mineral oils, soots, phthalates, and carbon monoxide which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.