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New Holland MH5.6, MH6.6, and MH8.6 specifications

Entries in this reference
Listing-entry count
3
Short answer

New Holland MH5.6, MH6.6, and MH8.6: full-size excavators.

Selected configuration figures
ConfigurationDocumented field and quantity
MH5.6
Net Power
152 hp
Operating Weight
45,041 lb
MH6.6
Net Power
166 hp
Operating Weight
47,355 lb
MH8.6
Net Power
166 hp
Operating Weight
50,045 lb
MH5.6, MH6.6, and MH8.6 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
New HollandMH5.6, MH6.6, and MH8.63MH5.6, MH6.6, and MH8.6
Boom/Stick Option (Mex) 1
SpecificationMH5.6MH6.6MH8.6
Shipping Length Of Unit28.89 ft30.96 ft31.06 ft
Shipping Height Of Unit10.08 ft10.37 ft10.44 ft
Max Cutting Height32.73 ft33.35 ft33.54 ft
Max Loading Height23.13 ft23.77 ft23.59 ft
Max Reach Along Ground29.16 ft30.32 ft30.5 ft
Max Vertical Wall Dig Depth12.18 ft14.11 ft13.51 ft
Max Digging Depth17.57 ft30.93 ft19.05 ft
Boom/Stick Option (Mex) 12pc boom / stick 2000mm2pc boom / stick 2300mm2pc boom / stick 2300mm
Dimensions and weight
SpecificationMH5.6MH6.6MH8.6
Wheelbase8.7 ft9.03 ft9.03 ft
Tail Swing Radius6.73 ft9.03 ft9.03 ft
Overall Width8.34 in8.34 in8.96 in
Ground Clearance1.09 ft1.09 ft1.09 ft
Overall Width - Outriggers Down12.8 ft12.8 ft14.31 ft
Height To Top Of Cab10.08 ft10.24 ft10.24 ft
Upper Structure Clearance4.11 ft4.17 ft4.17 ft
Engine
SpecificationMH5.6MH6.6MH8.6
Number Of Cylinders666
Engine ModelCNH - F4BE0684ACNH - F4BE0684ACNH F4BE0684A
Net Power152 hp166 hp166 hp
Displacement360.1 cu in360.1 cu in360.1 cu in
AspirationTurbocharger and charge air coolingturbocharger and charge air coolingturbocharger and charge air cooling
SpecificationMH8.6
Power Measured @2,000 rpm
Operational
SpecificationMH5.6MH6.6MH8.6
Operating Weight45,041 lb47,355 lb50,045 lb
Fuel Capacity95.2 gal85.9 gal85.9 gal
Cooling System Fluid Capacity8 gal8 gal8 gal
Engine Oil Capacity4.3 gal4.3 gal4.3 gal
Hydraulic System Fluid Capacity37 gal42.3 gal42.3 gal
Operational Voltage24 V24 V24 V
Alternator Supplied Amperage70 amps70 amps70 amps
Hydraulic System Relief Valve Pressure5,004 psi5,004 psi5,004 psi
Hydraulic Pump Flow Capacity118.9 gpm135.3 gpm140.1 gpm
Tire Size10.00-2010.00-2010.00-20
SpecificationMH6.6MH8.6
Hydraulic Pump Type3 Variable Displacement, Axial Piston3 Variable Displacement, Axial Piston
Swing Mechanism
SpecificationMH5.6MH6.6MH8.6
Swing Speed9.5 rpm9.5 rpm9.5 rpm
SpecificationMH5.6MH8.6
Swing Torque39,091 lb-ft51,629 lb-ft
Transmission and speeds
SpecificationMH5.6MH6.6MH8.6
Max Travel Speed12.5 mph12.5 mph12.5 mph
Drawbar Pull25,853 lb29,225 lb29,225 lb
Buckets
SpecificationMH5.6MH6.6MH8.6
Reference Bucket Capacity0.8 yd30.9 yd31 yd3
Minimum Bucket Capacity0.7 yd30.6 yd30.7 yd3
Maximum Bucket Capacity1.3 yd31.5 yd31.6 yd3
Variants — Source comparison annotation
Source guideDiffering-field count reported
MH5.6, MH6.6, and MH8.628
Ratios
FigureMH5.6MH6.6MH8.6
Engine horsepower per 1,000 lb of weight3.43.53.3
Fuel tank per engine horsepower0.63 gal0.52 gal0.52 gal
Hydraulic power from the listed pump flow and relief pressure347.1 hp395.0 hp409.0 hp
Reference directory classification
Equipment groupfull-size excavator
MH5.6, MH6.6, and MH8.6: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsfull-size excavatorNew Holland and the MH6 line that the MH6.6 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 instead1
MH5.6, MH6.6, and MH8.6: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)full-size excavatorMH5.6, MH6.6, MH8.6No matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionNew Holland; MH5.6, MH6.6, MH8.6No matching recall in the stated search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Reference site
Forum threads
Federal agency data

New Holland MH5.6, MH6.6, and MH8.6: Configuration records

MH5.6
SpecificationSource figure
Dimensions and weight
Ground Clearance1.09 ft
Height To Top Of Cab10.08 ft
Tail Swing Radius6.73 ft
Wheelbase8.7 ft
Engine
Number Of Cylinders6
Engine ModelCNH - F4BE0684A
Net Power152 hp
AspirationTurbocharger and charge air cooling
Displacement360.1 cu in
Operational
Operating Weight45,041 lb
Fuel Capacity95.2 gal
Cooling System Fluid Capacity8 gal
Hydraulic System Fluid Capacity37 gal
Engine Oil Capacity4.3 gal
Alternator Supplied Amperage70 amps
Hydraulic System Relief Valve Pressure5,004 psi
Hydraulic Pump Flow Capacity118.9 gpm
Operational Voltage24 V
Tire Size10.00-20
Swing Mechanism
Swing Speed9.5 rpm
Swing Torque39,091 lb-ft
Buckets
Reference Bucket Capacity0.8 yd3
Minimum Bucket Capacity0.7 yd3
Maximum Bucket Capacity1.3 yd3
Boom/Stick Option (Mex) 1
Max Vertical Wall Dig Depth12.18 ft
Boom/Stick Option (Mex) 12pc boom / stick 2000mm
Additional specifications
Overall Width - Outriggers Down12.8 ft
Upper Structure Clearance4.11 ft
Shipping Length Of Unit28.89 ft
Shipping Height Of Unit10.08 ft
Max Cutting Height32.73 ft
Max Loading Height23.13 ft
Max Reach Along Ground29.16 ft
Max Digging Depth17.57 ft
Max Travel Speed12.5 mph
Drawbar Pull25,853 lb

Source

MH6.6
SpecificationSource figure
Dimensions and weight
Ground Clearance1.09 ft
Height To Top Of Cab10.24 ft
Tail Swing Radius9.03 ft
Wheelbase9.03 ft
Engine
Number Of Cylinders6
Engine ModelCNH - F4BE0684A
Net Power166 hp
Aspirationturbocharger and charge air cooling
Displacement360.1 cu in
Operational
Operating Weight47,355 lb
Fuel Capacity85.9 gal
Cooling System Fluid Capacity8 gal
Hydraulic System Fluid Capacity42.3 gal
Engine Oil Capacity4.3 gal
Alternator Supplied Amperage70 amps
Hydraulic System Relief Valve Pressure5,004 psi
Hydraulic Pump Flow Capacity135.3 gpm
Operational Voltage24 V
Tire Size10.00-20
Hydraulic Pump Type3 Variable Displacement, Axial Piston
Swing Mechanism
Swing Speed9.5 rpm
Buckets
Reference Bucket Capacity0.9 yd3
Minimum Bucket Capacity0.6 yd3
Maximum Bucket Capacity1.5 yd3
Boom/Stick Option (Mex) 1
Max Vertical Wall Dig Depth14.11 ft
Boom/Stick Option (Mex) 12pc boom / stick 2300mm
Additional specifications
Overall Width - Outriggers Down12.8 ft
Upper Structure Clearance4.17 ft
Shipping Length Of Unit30.96 ft
Shipping Height Of Unit10.37 ft
Max Cutting Height33.35 ft
Max Loading Height23.77 ft
Max Reach Along Ground30.32 ft
Max Digging Depth30.93 ft
Max Travel Speed12.5 mph
Drawbar Pull29,225 lb

Source

MH8.6
SpecificationSource figure
Dimensions and weight
Ground Clearance1.09 ft
Height To Top Of Cab10.24 ft
Tail Swing Radius9.03 ft
Wheelbase9.03 ft
Engine
Number Of Cylinders6
Engine ModelCNH F4BE0684A
Net Power166 hp
Power Measured @2,000 rpm
Aspirationturbocharger and charge air cooling
Displacement360.1 cu in
Operational
Operating Weight50,045 lb
Fuel Capacity85.9 gal
Cooling System Fluid Capacity8 gal
Hydraulic System Fluid Capacity42.3 gal
Engine Oil Capacity4.3 gal
Alternator Supplied Amperage70 amps
Hydraulic System Relief Valve Pressure5,004 psi
Hydraulic Pump Flow Capacity140.1 gpm
Operational Voltage24 V
Tire Size10.00-20
Hydraulic Pump Type3 Variable Displacement, Axial Piston
Swing Mechanism
Swing Speed9.5 rpm
Swing Torque51,629 lb-ft
Buckets
Reference Bucket Capacity1 yd3
Minimum Bucket Capacity0.7 yd3
Maximum Bucket Capacity1.6 yd3
Boom/Stick Option (Mex) 1
Max Vertical Wall Dig Depth13.51 ft
Boom/Stick Option (Mex) 12pc boom / stick 2300mm
Additional specifications
Overall Width - Outriggers Down14.31 ft
Upper Structure Clearance4.17 ft
Shipping Length Of Unit31.06 ft
Shipping Height Of Unit10.44 ft
Max Cutting Height33.54 ft
Max Loading Height23.59 ft
Max Reach Along Ground30.5 ft
Max Digging Depth19.05 ft
Max Travel Speed12.5 mph
Drawbar Pull29,225 lb

Source

Compare New Holland MH5.6, MH6.6, MH8.6
Boom/Stick Option (Mex) 1
SpecificationMH5.6MH6.6MH8.6
Shipping Length Of Unit28.89 ft30.96 ft31.06 ft
Shipping Height Of Unit10.08 ft10.37 ft10.44 ft
Max Cutting Height32.73 ft33.35 ft33.54 ft
Max Loading Height23.13 ft23.77 ft23.59 ft
Max Reach Along Ground29.16 ft30.32 ft30.5 ft
Max Vertical Wall Dig Depth12.18 ft14.11 ft13.51 ft
Max Digging Depth17.57 ft30.93 ft19.05 ft
Boom/Stick Option (Mex) 12pc boom / stick 2000mm2pc boom / stick 2300mm2pc boom / stick 2300mm
Dimensions and weight
SpecificationMH5.6MH6.6MH8.6
Wheelbase8.7 ft9.03 ft9.03 ft
Tail Swing Radius6.73 ft9.03 ft9.03 ft
Ground Clearance1.09 ft1.09 ft1.09 ft
Overall Width - Outriggers Down12.8 ft12.8 ft14.31 ft
Height To Top Of Cab10.08 ft10.24 ft10.24 ft
Upper Structure Clearance4.11 ft4.17 ft4.17 ft
Engine
SpecificationMH5.6MH6.6MH8.6
Number Of Cylinders666
Engine ModelCNH - F4BE0684ACNH - F4BE0684ACNH F4BE0684A
Net Power152 hp166 hp166 hp
Displacement360.1 cu in360.1 cu in360.1 cu in
AspirationTurbocharger and charge air coolingturbocharger and charge air coolingturbocharger and charge air cooling
Operational
SpecificationMH5.6MH6.6MH8.6
Operating Weight45,041 lb47,355 lb50,045 lb
Fuel Capacity95.2 gal85.9 gal85.9 gal
Cooling System Fluid Capacity8 gal8 gal8 gal
Engine Oil Capacity4.3 gal4.3 gal4.3 gal
Hydraulic System Fluid Capacity37 gal42.3 gal42.3 gal
Operational Voltage24 V24 V24 V
Alternator Supplied Amperage70 amps70 amps70 amps
Hydraulic System Relief Valve Pressure5,004 psi5,004 psi5,004 psi
Hydraulic Pump Flow Capacity118.9 gpm135.3 gpm140.1 gpm
Tire Size10.00-2010.00-2010.00-20
Swing Mechanism
SpecificationMH5.6MH6.6MH8.6
Swing Speed9.5 rpm9.5 rpm9.5 rpm
Transmission and speeds
SpecificationMH5.6MH6.6MH8.6
Max Travel Speed12.5 mph12.5 mph12.5 mph
Drawbar Pull25,853 lb29,225 lb29,225 lb
Buckets
SpecificationMH5.6MH6.6MH8.6
Reference Bucket Capacity0.8 yd30.9 yd31 yd3
Minimum Bucket Capacity0.7 yd30.6 yd30.7 yd3
Maximum Bucket Capacity1.3 yd31.5 yd31.6 yd3

More in New Holland: E215C, E145–EH214LC, EC270.