Machine models

Yanmar ViO50-6A and ViO55-6A specifications

Entries in this reference
Listing-entry count
2

Short answer

Yanmar ViO50-6A and ViO55-6A: excavators.

Selected configuration figures
Configuration	Documented field and quantity
ViO50-6A	Gross Power 39 hp Operating Weight 10,417 lb
ViO55-6A	Gross Power 47.6 hp Operating Weight 11,850 lb

ViO50-6A and ViO55-6A specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Yanmar	ViO50-6A and ViO55-6A	2	ViO50-6A and ViO55-6A

Boom/Stick Option (Hex) 1
Specification	ViO50-6A	ViO55-6A
Max Digging Depth	12.3 ft	13.6 ft
Boom Swing - Right	68 degrees	68 degrees
Boom Swing - Left	68 degrees	68 degrees

Dimensions and weight
Specification	ViO50-6A	ViO55-6A
Width To Outside Of Tracks	6.37 ft	6.53 ft
Ground Clearance	1.14 ft	1.14 ft
Height To Top Of Cab	8.34 ft	8.34 ft
Tail Swing Radius	3.2 ft	3.3 ft
Overall Height	18.71 ft	19.89 ft
Wheelbase	8.5 ft	8.5 ft

Undercarriage
Specification	ViO50-6A	ViO55-6A
Max Travel Speed	2.9 mph	2.6 mph
Min Travel Speed	1.5 mph	1.4 mph

Engine
Specification	ViO50-6A
Number Of Cylinders	4

Specification	ViO50-6A	ViO55-6A
Engine Model	YANMAR 4TNV88C-PBV	YANMAR 4TNV86CT-PBV
Gross Power	39 hp	47.6 hp
Power Measured @	2,400 rpm	2,400 rpm
Aspiration	water-cooled	Water-cooled 4-cycle diesel

Operational
Specification	ViO50-6A	ViO55-6A
Operating Weight	10,417 lb	11,850 lb
Fuel Capacity	17.4 gal	17.4 gal
Hydraulic System Relief Valve Pressure	10,786 psi	11,205 psi
Hydraulic Pump Flow Capacity	34.9 gpm	36.5 gpm

Swing Mechanism
Specification	ViO50-6A	ViO55-6A
Swing Speed	10 rpm	10 rpm

Weights
Specification	ViO50-6A	ViO55-6A
Steel Tracks	10,703 lb	11,916 lb
Ground Bearing Pressure (Rubber Tracks)	4.3 psi	4.3 psi
Ground Bearing Pressure (Steel Tracks)	4.5 psi	4.4 psi
Rubber Tracks	10,417 lb	11,850 lb

Buckets
Specification	ViO50-6A	ViO55-6A
Bucket Digging Force - SAE	6,497 lb	7,464 lb

Specification	ViO55-6A
Arm Digging Force	5,058 lb

Blade
Specification	ViO50-6A	ViO55-6A
Blade Height	15.8 in	15.8 in
Blade Width	6.5 ft	6.5 ft

Variants — Source comparison annotation
Source guide	Differing-field count reported
ViO50-6A and ViO55-6A	18

Ratios
Figure	ViO50-6A	ViO55-6A
Engine horsepower per 1,000 lb of weight	3.7	4.0
Fuel tank per engine horsepower	0.45 gal	0.37 gal
Hydraulic power from the listed pump flow and relief pressure	219.6 hp	238.6 hp

Yanmar ViO50-6A and ViO55-6A: excavator

ViO50-6A and ViO55-6A: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	excavator	Yanmar and the VIO50 line that the ViO50-6A, ViO55-6A 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 instead	11

Yanmar Vio50 3 (Heavy Equipment Forums, 2026-03-03)
Vio55 6a Manual (Heavy Equipment Forums, 2025-07-07)
Buy A 6 000 Hr 2016 Yanmar Vio55 6a Or Run Away (Heavy Equipment Forums, 2025-02-04)
Vio55 6a No Start Yanmar Smartassist Direct (Heavy Equipment Forums, 2024-11-14)

Used market for the ViO50-6A and ViO55-6A — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Yanmar excavator	124

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
ViO50-6A	35	2017 to 2027	$42,500	$66,000	$48,000	2,452
ViO55-6A	89	2016 to 2027	$39,000	$107,892	$66,875	None shown

ViO50-6A and ViO55-6A: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Yanmar together with the excavator ViO50-6A, ViO55-6A	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Yanmar ViO50-6A — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Yanmar ViO55-6A — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Yanmar ViO50-6A and ViO55-6A — Heavy Equipment Forums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Yanmar ViO50-6A — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Yanmar — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	11
Forum indexes	Heavy Equipment Forums
Search wording	the ViO50-6A and ViO55-6A excavator
Latest title quoted by the reference	Yanmar Vio50 3

Yanmar ViO50-6A and ViO55-6A: Configuration records

ViO50-6A

Specification	Source figure
Boom/Stick Option (Hex) 1
Max Digging Depth	12.3 ft
Boom Swing - Right	68 degrees
Boom Swing - Left	68 degrees
Dimensions and weight
Width To Outside Of Tracks	6.37 ft
Ground Clearance	1.14 ft
Height To Top Of Cab	8.34 ft
Tail Swing Radius	3.2 ft
Overall Height	18.71 ft
Wheelbase	8.5 ft
Undercarriage
Max Travel Speed	2.9 mph
Min Travel Speed	1.5 mph
Engine
Engine Model	YANMAR 4TNV88C-PBV
Gross Power	39 hp
Power Measured @	2,400 rpm
Number Of Cylinders	4
Aspiration	water-cooled
Operational
Operating Weight	10,417 lb
Fuel Capacity	17.4 gal
Hydraulic Pump Flow Capacity	34.9 gpm
Swing Mechanism
Swing Speed	10 rpm
Weights
Steel Tracks	10,703 lb
Ground Bearing Pressure (Rubber Tracks)	4.3 psi
Ground Bearing Pressure (Steel Tracks)	4.5 psi
Rubber Tracks	10,417 lb
Buckets
Bucket Digging Force - SAE	6,497 lb
Blade
Blade Height	15.8 in
Blade Width	6.5 ft

Source

ViO55-6A

Specification	Source figure
Boom/Stick Option (Hex) 1
Max Digging Depth	13.6 ft
Boom Swing - Right	68 degrees
Boom Swing - Left	68 degrees
Dimensions and weight
Width To Outside Of Tracks	6.53 ft
Ground Clearance	1.14 ft
Height To Top Of Cab	8.34 ft
Tail Swing Radius	3.3 ft
Overall Height	19.89 ft
Wheelbase	8.5 ft
Undercarriage
Max Travel Speed	2.6 mph
Min Travel Speed	1.4 mph
Engine
Engine Model	YANMAR 4TNV86CT-PBV
Gross Power	47.6 hp
Power Measured @	2,400 rpm
Aspiration	Water-cooled 4-cycle diesel
Operational
Operating Weight	11,850 lb
Fuel Capacity	17.4 gal
Hydraulic Pump Flow Capacity	36.5 gpm
Swing Mechanism
Swing Speed	10 rpm
Weights
Steel Tracks	11,916 lb
Ground Bearing Pressure (Rubber Tracks)	4.3 psi
Ground Bearing Pressure (Steel Tracks)	4.4 psi
Rubber Tracks	11,850 lb
Buckets
Bucket Digging Force - SAE	7,464 lb
Arm Digging Force	5,058 lb
Blade
Blade Height	15.8 in
Blade Width	6.5 ft

Source

Compare Yanmar ViO50-6A, ViO55-6A

Boom/Stick Option (Hex) 1
Specification	ViO50-6A	ViO55-6A
Max Digging Depth	12.3 ft	13.6 ft
Boom Swing - Right	68 degrees	68 degrees
Boom Swing - Left	68 degrees	68 degrees

Dimensions and weight
Specification	ViO50-6A	ViO55-6A
Width To Outside Of Tracks	6.37 ft	6.53 ft
Ground Clearance	1.14 ft	1.14 ft
Height To Top Of Cab	8.34 ft	8.34 ft
Tail Swing Radius	3.2 ft	3.3 ft
Overall Height	18.71 ft	19.89 ft
Wheelbase	8.5 ft	8.5 ft

Undercarriage
Specification	ViO50-6A	ViO55-6A
Max Travel Speed	2.9 mph	2.6 mph
Min Travel Speed	1.5 mph	1.4 mph

Engine
Specification	ViO50-6A	ViO55-6A
Engine Model	YANMAR 4TNV88C-PBV	YANMAR 4TNV86CT-PBV
Gross Power	39 hp	47.6 hp
Power Measured @	2,400 rpm	2,400 rpm
Aspiration	water-cooled	Water-cooled 4-cycle diesel

Operational
Specification	ViO50-6A	ViO55-6A
Operating Weight	10,417 lb	11,850 lb
Fuel Capacity	17.4 gal	17.4 gal
Hydraulic Pump Flow Capacity	34.9 gpm	36.5 gpm

Swing Mechanism
Specification	ViO50-6A	ViO55-6A
Swing Speed	10 rpm	10 rpm

Weights
Specification	ViO50-6A	ViO55-6A
Steel Tracks	10,703 lb	11,916 lb
Ground Bearing Pressure (Rubber Tracks)	4.3 psi	4.3 psi
Ground Bearing Pressure (Steel Tracks)	4.5 psi	4.4 psi
Rubber Tracks	10,417 lb	11,850 lb

Buckets
Specification	ViO50-6A	ViO55-6A
Bucket Digging Force - SAE	6,497 lb	7,464 lb

Blade
Specification	ViO50-6A	ViO55-6A
Blade Height	15.8 in	15.8 in
Blade Width	6.5 ft	6.5 ft

More in Yanmar: SV08-1, Vio45-5–Vio55-5B, Vio20-3.

Yanmar ViO50-6A and ViO55-6A specifications

Yanmar ViO50-6A and ViO55-6A: excavator

Sources for this page

Yanmar ViO50-6A and ViO55-6A: Configuration records