FieldSpec
Equipment menu

Machine models

Liebherr R974B and R974C specifications

Entries in this reference
Listing-entry count
2
Short answer

Liebherr R974B and R974C: full-size excavators.

Selected configuration figures
ConfigurationDocumented field and quantity
R974B
Net Power
490 hp
Operating Weight
187,834 lb
R974C
Gross Power
529.8 hp
Operating Weight
179,677 lb
R974B and R974C specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
LiebherrR974B and R974C2R974B and R974C
Boom/Stick Option (Hex) 1
SpecificationR974BR974C
Shipping Length Of Unit54.3 ft44.46 ft
Shipping Height Of Unit21.33 ft17.89 ft
SpecificationR974B
Boom/Stick Option (Hex) 1
Boom length
12000mm
Stick length
9000mm
SpecificationR974C
Max Loading Height29.2 ft
Max Reach Along Ground42.98 ft
Max Digging Depth27.73 ft
Dimensions and weight
SpecificationR974BR974C
Ground Clearance2.16 ft2.14 ft
Width To Outside Of Tracks14.22 ft15.62 ft
Length Of Track On Ground17.04 ft14.9 ft
Tail Swing Radius14.57 ft14.57 ft
SpecificationR974B
Height To Top Of Cab11.96 ft
Removal Counterweight Clearance4.89 ft
Undercarriage
SpecificationR974B
Track Gauge11.82 ft
Drawbar Pull159,614 lb
Number Of Carrier Rollers Per Side2
Ground Pressure17.93 psi
Number Of Track Rollers Per Side9
SpecificationR974BR974C
Shoe Size23.63 in23.63 in
Max Travel Speed1.74 mph2.74 mph
Engine
SpecificationR974BR974C
Number Of Cylinders88
Engine ModelD9408 TI-ED9408Ti-E
Power Measured @1,800 rpm1,800 rpm
Displacement1,050 cu in1,050 cu in
SpecificationR974B
Net Power490 hp
Aspirationturbocharged
SpecificationR974C
Gross Power529.8 hp
Operational
SpecificationR974BR974C
Operating Weight187,834 lb179,677 lb
Hydraulic System Relief Valve Pressure4,931 psi4,641 psi
Hydraulic Pump Flow Capacity131.1 gpm340 gpm
SpecificationR974B
Fuel Capacity338.2 gal
Hydraulic System Fluid Capacity317.1 gal
Operating Voltage24 V
Alternator Supplied Amperage80 amps
Swing Mechanism
SpecificationR974B
Swing Speed5.5 rpm
Swing Torque191,766 lb-ft
Buckets
SpecificationR974C
Reference Bucket Capacity6.9 yd3
Variants — Source comparison annotation
Source guideDiffering-field count reported
R974B and R974C31
Ratios
FigureR974BR974C
Engine horsepower per 1,000 lb of weight2.62.9
Hydraulic power from the listed pump flow and relief pressure377.2 hp920.6 hp
FigureR974B
Fuel tank per engine horsepower0.69 gal
Reference directory classification
Equipment groupfull-size excavator
R974B and R974C: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsfull-size excavatorLiebherr and the R974 line that the R974B, R974C belongs to (no title names the exact model)7
Topics named by those titles
Title topicTitles
hydraulics2
Topic in the titleThreadsShare of matching threads
hydraulics229%
R974B and R974C: dated market and recall observations — Dated listing search
DateListing indexEquipment classNames queriedResult
2026-09-24MachineryTrader (machinerytrader.com)full-size excavatorR974B, R974CNo matching offers in this snapshot
Dated CPSC search
DateDatabaseNames queriedResult
2026-09-24U.S. Consumer Product Safety CommissionLiebherr; R974B, R974CNo matching recall in the stated search

Sources for this page

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

Liebherr R974B and R974C: Configuration records

R974B
SpecificationSource figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit54.3 ft
Shipping Height Of Unit21.33 ft
Boom/Stick Option (Hex) 1
Boom length
12000mm
Stick length
9000mm
Dimensions and weight
Ground Clearance2.16 ft
Height To Top Of Cab11.96 ft
Width To Outside Of Tracks14.22 ft
Length Of Track On Ground17.04 ft
Tail Swing Radius14.57 ft
Removal Counterweight Clearance4.89 ft
Undercarriage
Track Gauge11.82 ft
Shoe Size23.63 in
Drawbar Pull159,614 lb
Number Of Carrier Rollers Per Side2
Max Travel Speed1.74 mph
Ground Pressure17.93 psi
Number Of Track Rollers Per Side9
Engine
Number Of Cylinders8
Engine ModelD9408 TI-E
Net Power490 hp
Power Measured @1,800 rpm
Displacement1,050 cu in
Aspirationturbocharged
Operational
Operating Weight187,834 lb
Fuel Capacity338.2 gal
Hydraulic System Fluid Capacity317.1 gal
Operating Voltage24 V
Alternator Supplied Amperage80 amps
Hydraulic System Relief Valve Pressure4,931 psi
Hydraulic Pump Flow Capacity131.1 gpm
Swing Mechanism
Swing Speed5.5 rpm
Swing Torque191,766 lb-ft

Source

R974C
SpecificationSource figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit44.46 ft
Shipping Height Of Unit17.89 ft
Max Loading Height29.2 ft
Max Reach Along Ground42.98 ft
Max Digging Depth27.73 ft
Dimensions and weight
Ground Clearance2.14 ft
Width To Outside Of Tracks15.62 ft
Length Of Track On Ground14.9 ft
Tail Swing Radius14.57 ft
Undercarriage
Shoe Size23.63 in
Max Travel Speed2.74 mph
Engine
Number Of Cylinders8
Engine ModelD9408Ti-E
Power Measured @1,800 rpm
Displacement1,050 cu in
Operational
Operating Weight179,677 lb
Hydraulic System Relief Valve Pressure4,641 psi
Hydraulic Pump Flow Capacity340 gpm
Buckets
Reference Bucket Capacity6.9 yd3
Additional specifications
Gross Power529.8 hp

Source

More in Liebherr: R984C, R970 SME LITRONIC/2 related models specs, R994.