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Volvo BM 616B and BM 646 specifications

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Listing-entry count
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Short answer

Volvo BM 616B and BM 646: backhoe loaders.

Selected configuration figures
ConfigurationDocumented field and quantity
BM 616B
Gross Power
79.2 hp
Pump Flow Capacity
29.9 gpm
BM 646
Gross Power
84.5 hp
Pump Flow Capacity
29.9 gpm
BM 616B and BM 646 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
VolvoBM 616B and BM 6462BM 616B and BM 646
Backhoe
SpecificationBM 616BBM 646
Load Height - Std12.37 ft11.91 ft
Reach From Swivel - Std19.23 ft19.17 ft
Dig Depth - Std13.85 ft14.01 ft
Reach At Load Height - Std7.94 ft7.94 ft
SpecificationBM 616B
Bucket Dig Force - Std7,518 lb
Dimensions and weight
SpecificationBM 616BBM 646
Transport Length26.45 ft26.45 ft
Transport Height13.29 ft13.29 ft
Wheelbase7.71 ft8.37 ft
Ground Clearance1.34 ft1.34 ft
Height To Top Of Suspended Cab9.39 ft9.39 ft
Loader
SpecificationBM 616BBM 646
Clearance At Max Dump Height9.22 ft10.14 ft
Reach At Max Dump Height1.91 ft1.71 ft
Lift Capacity At Full Height5,730 lb5,070 lb
Bucket Breakout Force9,217 lb8,600 lb
Engine
SpecificationBM 616BBM 646
Number Of Cylinders44
Engine ModelBM D42BM TD 42
Gross Power79.2 hp84.5 hp
Net Max Torque195.5 lb-ft220.6 lb-ft
Displacement256.3 cu in256.3 cu in
Operational
SpecificationBM 616BBM 646
Fuel Capacity25.4 gal25.4 gal
Max Weight19,731 lb21,495 lb
Hydraulic System Fluid Capacity50.2 gal50.2 gal
Oil System Fluid Capacity2.8 gal2.8 gal
Cooling System Fluid Capacity4.3 gal4.3 gal
Transmission Fluid Capacity5.9 gal5.9 gal
Tire Size Front - 2wd / 4wd12.5-20/1014.9-24/14
Rear Tires Size 2wd/4wd18.4-34/1418.4-34/14
Operating Voltage24 V24 V
Alternator Supplied Amperage43 amps43 amps
Transmission and speeds
SpecificationBM 616BBM 646
Transmission TypeVolvo BM hydromechanical gearbox with powershifthydromechanical gearbox with power shift
Number Of Forward Gears44
Number Of Reverse Gears44
Max Speed - Forward19 mph18.5 mph
Max Speed Reverse19 mph18.5 mph
Hydraulic
SpecificationBM 616BBM 646
Pump Typegear pumpgear pump
Pump Flow Capacity29.9 gpm29.9 gpm
Relief Valve Pressure2,465 psi2,465 psi
Variants — Source comparison annotation
Source guideDiffering-field count reported
BM 616B and BM 64617
Ratios
FigureBM 616BBM 646
Engine horsepower per 1,000 lb of weight4.03.9
Pump flow per engine horsepower0.38 gpm0.35 gpm
Fuel tank per engine horsepower0.32 gal0.30 gal
Reference directory classification
Equipment groupbackhoe loader
BM 616B and BM 646: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsbackhoe loaderVolvo and the BM 646. That is too few titles to say what owners mostly ask about, so the most recent are listed instead1
BM 616B and BM 646: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)backhoe loaderBM 616B, BM 646No matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionVolvo; BM 616B, BM 646No matching recall in the stated search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
  • Reference site: Volvo BM 616B — RitchieSpecs. Observed 2026-09-24.
Reference site
  • Reference site: Volvo BM 646 — RitchieSpecs. Observed 2026-09-24.
Forum threads
Federal agency data

Volvo BM 616B and BM 646: Configuration records

BM 616B
SpecificationSource figure
Backhoe
Load Height - Std12.37 ft
Reach From Swivel - Std19.23 ft
Dig Depth - Std13.85 ft
Reach At Load Height - Std7.94 ft
Bucket Dig Force - Std7,518 lb
Dimensions and weight
Transport Length26.45 ft
Transport Height13.29 ft
Wheelbase7.71 ft
Ground Clearance1.34 ft
Height To Top Of Suspended Cab9.39 ft
Loader
Clearance At Max Dump Height9.22 ft
Reach At Max Dump Height1.91 ft
Lift Capacity At Full Height5,730 lb
Bucket Breakout Force9,217 lb
Engine
Number Of Cylinders4
Engine ModelBM D42
Gross Power79.2 hp
Net Max Torque195.5 lb-ft
Displacement256.3 cu in
Operational
Fuel Capacity25.4 gal
Max Weight19,731 lb
Hydraulic System Fluid Capacity50.2 gal
Oil System Fluid Capacity2.8 gal
Cooling System Fluid Capacity4.3 gal
Transmission Fluid Capacity5.9 gal
Tire Size Front - 2wd / 4wd12.5-20/10
Rear Tires Size 2wd/4wd18.4-34/14
Operating Voltage24 V
Alternator Supplied Amperage43 amps
Transmission and speeds
Transmission TypeVolvo BM hydromechanical gearbox with powershift
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward19 mph
Max Speed Reverse19 mph
Hydraulic
Pump Typegear pump
Pump Flow Capacity29.9 gpm
Relief Valve Pressure2,465 psi

Source

BM 646
SpecificationSource figure
Backhoe
Load Height - Std11.91 ft
Reach From Swivel - Std19.17 ft
Dig Depth - Std14.01 ft
Reach At Load Height - Std7.94 ft
Dimensions and weight
Transport Length26.45 ft
Transport Height13.29 ft
Wheelbase8.37 ft
Ground Clearance1.34 ft
Height To Top Of Suspended Cab9.39 ft
Loader
Clearance At Max Dump Height10.14 ft
Reach At Max Dump Height1.71 ft
Lift Capacity At Full Height5,070 lb
Bucket Breakout Force8,600 lb
Engine
Number Of Cylinders4
Engine ModelBM TD 42
Gross Power84.5 hp
Net Max Torque220.6 lb-ft
Displacement256.3 cu in
Operational
Fuel Capacity25.4 gal
Max Weight21,495 lb
Hydraulic System Fluid Capacity50.2 gal
Oil System Fluid Capacity2.8 gal
Cooling System Fluid Capacity4.3 gal
Transmission Fluid Capacity5.9 gal
Tire Size Front - 2wd / 4wd14.9-24/14
Rear Tires Size 2wd/4wd18.4-34/14
Operating Voltage24 V
Alternator Supplied Amperage43 amps
Transmission and speeds
Transmission Typehydromechanical gearbox with power shift
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward18.5 mph
Max Speed Reverse18.5 mph
Hydraulic
Pump Typegear pump
Pump Flow Capacity29.9 gpm
Relief Valve Pressure2,465 psi

Source

Compare Volvo BM 616B, BM 646
Backhoe
SpecificationBM 616BBM 646
Load Height - Std12.37 ft11.91 ft
Reach From Swivel - Std19.23 ft19.17 ft
Dig Depth - Std13.85 ft14.01 ft
Reach At Load Height - Std7.94 ft7.94 ft
Dimensions and weight
SpecificationBM 616BBM 646
Transport Length26.45 ft26.45 ft
Transport Height13.29 ft13.29 ft
Wheelbase7.71 ft8.37 ft
Ground Clearance1.34 ft1.34 ft
Height To Top Of Suspended Cab9.39 ft9.39 ft
Loader
SpecificationBM 616BBM 646
Clearance At Max Dump Height9.22 ft10.14 ft
Reach At Max Dump Height1.91 ft1.71 ft
Lift Capacity At Full Height5,730 lb5,070 lb
Bucket Breakout Force9,217 lb8,600 lb
Engine
SpecificationBM 616BBM 646
Number Of Cylinders44
Engine ModelBM D42BM TD 42
Gross Power79.2 hp84.5 hp
Net Max Torque195.5 lb-ft220.6 lb-ft
Displacement256.3 cu in256.3 cu in
Operational
SpecificationBM 616BBM 646
Fuel Capacity25.4 gal25.4 gal
Max Weight19,731 lb21,495 lb
Hydraulic System Fluid Capacity50.2 gal50.2 gal
Oil System Fluid Capacity2.8 gal2.8 gal
Cooling System Fluid Capacity4.3 gal4.3 gal
Transmission Fluid Capacity5.9 gal5.9 gal
Tire Size Front - 2wd / 4wd12.5-20/1014.9-24/14
Rear Tires Size 2wd/4wd18.4-34/1418.4-34/14
Operating Voltage24 V24 V
Alternator Supplied Amperage43 amps43 amps
Transmission and speeds
SpecificationBM 616BBM 646
Transmission TypeVolvo BM hydromechanical gearbox with powershifthydromechanical gearbox with power shift
Number Of Forward Gears44
Number Of Reverse Gears44
Max Speed - Forward19 mph18.5 mph
Max Speed Reverse19 mph18.5 mph
Hydraulic
SpecificationBM 616BBM 646
Pump Typegear pumpgear pump
Pump Flow Capacity29.9 gpm29.9 gpm
Relief Valve Pressure2,465 psi2,465 psi

More in Volvo: BM 616: pivoting arm/controls/period specs, BL60B: hydraulics/backhoe buckets/service, BL60/BL70.