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Hitachi EX40-2, ZX40U-2, and ZX50U-2 specifications

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Listing-entry count
3
Short answer

Hitachi EX40-2, ZX40U-2, and ZX50U-2: excavators.

Selected configuration figures
ConfigurationDocumented field and quantity
EX40-2
Net Power
35.5 hp
Operating Weight
9,149 lb
ZX40U-2
Net Power
39.9 hp
Operating Weight
9,678 lb
ZX50U-2
Net Power
39.9 hp
Operating Weight
10,428 lb
EX40-2, ZX40U-2, and ZX50U-2 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
HitachiEX40-2, ZX40U-2, and ZX50U-23EX40-2, ZX40U-2, and ZX50U-2
Boom/Stick Option (Hex) 1
SpecificationEX40-2ZX40U-2ZX50U-2
Shipping Length Of Unit17.82 ft17.52 ft17.92 ft
Max Cutting Height19.05 ft18.38 ft18.94 ft
Shipping Height Of Unit8.52 ft8.24 ft8.24 ft
Max Loading Height13.51 ft12.87 ft13.46 ft
Max Vertical Wall Digging Depth8.81 ft8.37 ft9.26 ft
Max Digging Depth11.11 ft11 ft11.82 ft
Boom/Stick Option (Hex) 1Boom 2730mm / Arm 1460mm
Boom length
2680mm
Stick length
1380mm
Boom length
2680mm
Stick length
1380mm
SpecificationEX40-2
Max Reach Along Ground18.77 ft
Dimensions and weight
SpecificationEX40-2ZX40U-2ZX50U-2
Width To Outside Of Tracks6.07 ft6.44 ft6.57 ft
Length Of Track On Ground6.34 ft6.57 ft6.57 ft
Ground Clearance1.2 ft1.1 ft1.1 ft
Height To Top Of Cab8.52 ft8.24 ft8.24 ft
Tail Swing Radius4.75 ft3.22 ft3.29 ft
Removal Counterweight Clearance2.09 ft1.99 ft1.99 ft
Undercarriage
SpecificationEX40-2ZX40U-2ZX50U-2
Shoe Size15.75 in15.75 in15.75 in
Track Gauge4.76 ft5.12 ft5.25 ft
Max Travel Speed2.8 mph2.8 mph2.8 mph
Ground Pressure3.56 psi4.07 psi4.36 psi
Number Of Carrier Rollers Per Side111
Number Of Track Rollers Per Side444
Engine
SpecificationEX40-2ZX40U-2ZX50U-2
Number Of Cylinders444
Engine ModelV2203-KA4TNV884TNV88
Net Power35.5 hp39.9 hp39.9 hp
Power Measured @2,100 rpm2,500 rpm2,500 rpm
Displacement134.1 cu in133.6 cu in133.6 cu in
Max Torque93 lb-ft101.8 lb-ft101.8 lb-ft
Torque Measured @1,500 rpm1,500 rpm1,500 rpm
SpecificationEX40-2
AspirationNatural
Operational
SpecificationEX40-2ZX40U-2ZX50U-2
Operating Weight9,149 lb9,678 lb10,428 lb
Fuel Capacity13.3 gal18.5 gal18.5 gal
Cooling System Fluid Capacity2 gal1.8 gal1.8 gal
Hydraulic System Fluid Capacity16.4 gal23.8 gal23.8 gal
Engine Oil Capacity2.4 gal2.3 gal2.3 gal
Hydraulic System Relief Valve Pressure3,840 psi3,554 psi3,554 psi
Hydraulic Pump Flow Capacity23.3 gpm33.1 gpm33.1 gpm
SpecificationEX40-2
Operational Voltage12 V
Alternator Supplied Amperage52 amps
SpecificationZX40U-2ZX50U-2
Operating Voltage12 V12 V
Swing Mechanism
SpecificationEX40-2ZX40U-2ZX50U-2
Swing Speed10 rpm9.3 rpm9.3 rpm
Buckets
SpecificationEX40-2ZX40U-2ZX50U-2
Reference Bucket Capacity0.2 yd30.2 yd30.3 yd3
SpecificationEX40-2
Minimum Bucket Capacity0.2 yd3
Maximum Bucket Capacity0.3 yd3
Variants — Source comparison annotation
Source guideDiffering-field count reported
EX40-2, ZX40U-2, and ZX50U-236
Ratios
FigureEX40-2ZX40U-2ZX50U-2
Engine horsepower per 1,000 lb of weight3.94.13.8
Fuel tank per engine horsepower0.37 gal0.46 gal0.46 gal
Hydraulic power from the listed pump flow and relief pressure52.2 hp68.6 hp68.6 hp

Hitachi EX40-2, ZX40U-2, and ZX50U-2: excavator

EX40-2, ZX40U-2, and ZX50U-2: owner reports

Sources: 3 forum discussions about the Hitachi ZX50U-2 mini excavators; heavyequipmentforums.com.
  • Bogging under load and a transplanted hydraulic system. A ZX50U-2 that bogged and sometimes stalled under load (a reply described testing the revolution-sensing valve output pressure), an owner who transplanted a ZX50U-2's whole hydraulic system into another machine and could not build pressure (a reply suspected an open unload valve in the main control valve), and an owner asking for the service intervals of a machine whose model and serial neither Hitachi nor Deere could find. Threads read: 1, 2, 3.
EX40-2, ZX40U-2, and ZX50U-2: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment ForumsexcavatorHitachi and the EX40, ZX40U line that the EX40-2, ZX40U-2, ZX50U-2 belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead7
Used market for the EX40-2, ZX40U-2, and ZX50U-2 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderHitachi excavator1
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
ZX50U-212007$12,946$12,946$12,946None shown
EX40-2, ZX40U-2, and ZX50U-2: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionHitachi together with the excavator EX40-2, ZX40U-2, ZX50U-2No matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Reference site
Forum threads
Forum threads
Used-market listings
Federal agency data
Recorded observations — Forum-title snapshot
Observation fieldRecorded value
Title count7
Forum indexesHeavy Equipment Forums
Search wordingthe EX40-2, ZX40U-2, and ZX50U-2 excavator
Latest title quoted by the referenceRetro Fitted Complete Hitachi Zx50u 2 Hydrulic System Into Another Excavator Have Pressure Issues

Hitachi EX40-2, ZX40U-2, and ZX50U-2: Configuration records

EX40-2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit17.82 ft
Max Cutting Height19.05 ft
Shipping Height Of Unit8.52 ft
Max Loading Height13.51 ft
Max Reach Along Ground18.77 ft
Max Vertical Wall Digging Depth8.81 ft
Max Digging Depth11.11 ft
Boom/Stick Option (Hex) 1Boom 2730mm / Arm 1460mm
Dimensions and weight
Width To Outside Of Tracks6.07 ft
Length Of Track On Ground6.34 ft
Ground Clearance1.2 ft
Height To Top Of Cab8.52 ft
Tail Swing Radius4.75 ft
Removal Counterweight Clearance2.09 ft
Undercarriage
Shoe Size15.75 in
Track Gauge4.76 ft
Max Travel Speed2.8 mph
Ground Pressure3.56 psi
Number Of Carrier Rollers Per Side1
Number Of Track Rollers Per Side4
Engine
Number Of Cylinders4
Engine ModelV2203-KA
Net Power35.5 hp
Power Measured @2,100 rpm
Displacement134.1 cu in
Max Torque93 lb-ft
Torque Measured @1,500 rpm
AspirationNatural
Operational
Operating Weight9,149 lb
Fuel Capacity13.3 gal
Cooling System Fluid Capacity2 gal
Hydraulic System Fluid Capacity16.4 gal
Engine Oil Capacity2.4 gal
Operational Voltage12 V
Alternator Supplied Amperage52 amps
Hydraulic System Relief Valve Pressure3,840 psi
Hydraulic Pump Flow Capacity23.3 gpm
Swing Mechanism
Swing Speed10 rpm
Buckets
Reference Bucket Capacity0.2 yd3
Minimum Bucket Capacity0.2 yd3
Maximum Bucket Capacity0.3 yd3

Source

ZX40U-2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit17.52 ft
Max Cutting Height18.38 ft
Shipping Height Of Unit8.24 ft
Max Loading Height12.87 ft
Max Vertical Wall Digging Depth8.37 ft
Max Digging Depth11 ft
Boom/Stick Option (Hex) 1
Boom length
2680mm
Stick length
1380mm
Dimensions and weight
Width To Outside Of Tracks6.44 ft
Length Of Track On Ground6.57 ft
Ground Clearance1.1 ft
Height To Top Of Cab8.24 ft
Tail Swing Radius3.22 ft
Removal Counterweight Clearance1.99 ft
Undercarriage
Shoe Size15.75 in
Track Gauge5.12 ft
Max Travel Speed2.8 mph
Ground Pressure4.07 psi
Number Of Carrier Rollers Per Side1
Number Of Track Rollers Per Side4
Engine
Number Of Cylinders4
Engine Model4TNV88
Net Power39.9 hp
Power Measured @2,500 rpm
Displacement133.6 cu in
Max Torque101.8 lb-ft
Torque Measured @1,500 rpm
Operational
Operating Weight9,678 lb
Fuel Capacity18.5 gal
Cooling System Fluid Capacity1.8 gal
Hydraulic System Fluid Capacity23.8 gal
Engine Oil Capacity2.3 gal
Hydraulic System Relief Valve Pressure3,554 psi
Hydraulic Pump Flow Capacity33.1 gpm
Operating Voltage12 V
Swing Mechanism
Swing Speed9.3 rpm
Buckets
Reference Bucket Capacity0.2 yd3

Source

ZX50U-2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit17.92 ft
Max Cutting Height18.94 ft
Shipping Height Of Unit8.24 ft
Max Loading Height13.46 ft
Max Vertical Wall Digging Depth9.26 ft
Max Digging Depth11.82 ft
Boom/Stick Option (Hex) 1
Boom length
2680mm
Stick length
1380mm
Dimensions and weight
Width To Outside Of Tracks6.57 ft
Length Of Track On Ground6.57 ft
Ground Clearance1.1 ft
Height To Top Of Cab8.24 ft
Tail Swing Radius3.29 ft
Removal Counterweight Clearance1.99 ft
Undercarriage
Shoe Size15.75 in
Track Gauge5.25 ft
Max Travel Speed2.8 mph
Ground Pressure4.36 psi
Number Of Carrier Rollers Per Side1
Number Of Track Rollers Per Side4
Engine
Number Of Cylinders4
Engine Model4TNV88
Net Power39.9 hp
Power Measured @2,500 rpm
Displacement133.6 cu in
Max Torque101.8 lb-ft
Torque Measured @1,500 rpm
Operational
Operating Weight10,428 lb
Fuel Capacity18.5 gal
Cooling System Fluid Capacity1.8 gal
Hydraulic System Fluid Capacity23.8 gal
Engine Oil Capacity2.3 gal
Hydraulic System Relief Valve Pressure3,554 psi
Hydraulic Pump Flow Capacity33.1 gpm
Operating Voltage12 V
Swing Mechanism
Swing Speed9.3 rpm
Buckets
Reference Bucket Capacity0.3 yd3

Source

More in Hitachi: ZX210-6/ZX210LC-6: regional hydraulics/tools, ZX27U-2–ZX35U-3, ZX345USLC-6.