Machine models

Link-Belt 290LX Road Builder and 3 related models specifications

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Listing-entry count
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Short answer

Link-Belt 290LX Road Builder and 3 related models: full-size excavators.

Selected configuration figures
Configuration	Documented field and quantity
290LX Road Builder	Net Power 177 hp Operating Weight 71,266 lb
330LX	Net Power 247 hp Operating Weight 78,000 lb
370LX Road Builder	Net Power 247 hp Operating Weight 97,891 lb
4300 Quantum Road Builder	Net Power 240 hp Operating Weight 83,304 lb

290LX Road Builder and 3 related models specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Link-Belt	290LX Road Builder and 3 related models	4	290LX Road Builder, 330LX, 370LX Road Builder, and 4300 Quantum Road Builder

Boom/Stick Option (Hex) 1
Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Shipping Length Of Unit	32.93 ft	36.23 ft	36.26 ft	35.83 ft
Shipping Height Of Unit	11 ft	10.8 ft	11.41 ft	11.19 ft
Max Cutting Height	34.19 ft	34.03 ft	35.08 ft	34.45 ft
Max Loading Height	24.25 ft	23.73 ft	24.74 ft	28.38 ft
Max Reach Along Ground	34.52 ft	36.03 ft	35.83 ft	35.9 ft
Max Vertical Wall Digging Depth	20.35 ft	20.84 ft	20.94 ft	20.02 ft
Max Digging Depth	22.61 ft	24.09 ft	23.1 ft	23.53 ft
Boom/Stick Option (Hex) 1	Boom 20\'2\" (6150mm) / Stick 10\'6\" (3200mm)	Boom 21\'2\" (6450mm) / Stick 10\'8\" (3250mm)	Boom 21\'2\" (6450mm) / Stick 10\'8\" (3250mm)	Boom 21\'2\" (6450mm) / Stick 10\'7\" (3230mm)

Dimensions and weight
Specification	290LX Road Builder	370LX Road Builder	4300 Quantum Road Builder
Ground Clearance	2.32 ft	2.39 ft	2.32 ft

Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Height To Top Of Cab	11 ft	10.5 ft	11.41 ft	10.96 ft
Width To Outside Of Tracks	11.95 ft	11.16 ft	11.95 ft	11.95 ft
Length Of Track On Ground	13.19 ft	13.26 ft	14.34 ft	13.26 ft
Tail Swing Radius	10.44 ft	11.23 ft	11.46 ft	11 ft
Removal Counterweight Clearance	4.66 ft	3.97 ft	4.95 ft	4.73 ft

Undercarriage
Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Track Gauge	9.65 ft	8.54 ft	9.65 ft	9.65 ft
Shoe Size	27.56 in	31.5 in	27.56 in	27.56 in
Ground Pressure	7.55 psi	7.2 psi	9.52 psi	8.7 psi
Number Of Shoes Per Side	48	48	50	49
Number Of Carrier Rollers Per Side	2	2	2	2
Max Travel Speed	2.5 mph	3.4 mph	2.6 mph	3.1 mph
Number Of Track Rollers Per Side	8	8	9	8

Engine
Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Number Of Cylinders	6	6	6	6
Engine Model	CC-6BG1TC	AA-6HK1XQB	AA-6HK1XQB	MII-C265
Net Power	177 hp	247 hp	247 hp	240 hp
Power Measured @	2,200 rpm	2,000 rpm	2,000 rpm	1,700 rpm
Max Torque	443 lb-ft	687 lb-ft	687 lb-ft	900 lb-ft
Displacement	396 cu in	475 cu in	475 cu in	661 cu in
Aspiration	Turbocharged with Intercooler	Turbocharged with Intercooler	Turbocharged with Intercooler	Turbocharged
Torque Measured @	1,800 rpm	1,600 rpm	1,600 rpm	1,300 rpm

Operational
Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Operating Weight	71,266 lb	78,000 lb	97,891 lb	83,304 lb
Fuel Capacity	89.9 gal	153.3 gal	153.3 gal	153.3 gal
Cooling System Fluid Capacity	7.7 gal	11.1 gal	11.1 gal	15.1 gal
Hydraulic System Fluid Capacity	63.5 gal	92.5 gal	92.5 gal	84.6 gal
Engine Oil Capacity	6.4 gal	8.8 gal	8.8 gal	9 gal
Operating Voltage	24 V	24 V	24 V	24 V
Swing Drive Fluid Capacity	1.6 gal	1.6 gal	3 gal	3.4 gal
Alternator Supplied Amperage	50 amps	50 amps	50 amps	70 amps
Hydraulic System Relief Valve Pressure	4,970 psi	4,970 psi	4,970 psi	4,620 psi
Hydraulic Pump Flow Capacity	116.8 gpm	150 gpm	150 gpm	142 gpm

Swing Mechanism
Specification	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Swing Speed	8.1 rpm	9.6 rpm	8.1 rpm	10.1 rpm
Swing Torque	81,870 lb-ft	82,680 lb-ft	112,110 lb-ft	73,709 lb-ft

Buckets
Specification	330LX	4300 Quantum Road Builder
Reference Bucket Capacity	1.6 yd3	1.5 yd3
Minimum Bucket Capacity	1.3 yd3	1.2 yd3
Maximum Bucket Capacity	3 yd3	2.8 yd3

Variants — Source comparison annotation
Source guide	Differing-field count reported
290LX Road Builder and 3 related models	41

Ratios
Figure	290LX Road Builder	330LX	370LX Road Builder	4300 Quantum Road Builder
Engine horsepower per 1,000 lb of weight	2.5	3.2	2.5	2.9
Fuel tank per engine horsepower	0.51 gal	0.62 gal	0.62 gal	0.64 gal
Hydraulic power from the listed pump flow and relief pressure	338.7 hp	434.9 hp	434.9 hp	382.8 hp

290LX Road Builder and 3 related models: owner reports

Sources: 3 forum discussions about the Link-Belt 290 LX excavators; heavyequipmentforums.com.

Link-Belt: Starting, low power and injector calibration.

290LX Road Builder and 3 related models: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	full-size excavator	Link-Belt and the 290LX, 4300 line that the 290LX Road Builder, 330LX, 4300 Quantum Road Builder belongs to (no title names the exact model)	26

Topics named by those titles
Title topic	Titles
electrical and sensors	3
starting and cranking	2
hydraulics	2

Topic in the title	Threads	Share of matching threads
electrical and sensors	3	12%
starting and cranking	2	8%
hydraulics	2	8%

Link Belt 330lx Main Hydraulic Pump (Heavy Equipment Forums, 2026-03-11)
Link Belt 4300q Solenoid Block Issues (Heavy Equipment Forums, 2025-07-11)
4300 Link Belt Cii Travel Speed Switch Question (Heavy Equipment Forums, 2024-11-29)
2000 Link Belt 4300q Excavator (Heavy Equipment Forums, 2024-03-01)

290LX Road Builder and 3 related models: dated market and recall observations — Dated listing search
Date	Listing index	Equipment class	Names queried	Result
2026-09-24	MachineryTrader (machinerytrader.com)	full-size excavator	290LX Road Builder, 330LX, 370LX Road Builder	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Link-Belt; 290LX Road Builder, 330LX, 370LX Road Builder	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Link-Belt 290LX Road Builder — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Link-Belt 330LX — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Link-Belt 370LX Road Builder — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Link-Belt 4300 Quantum Road Builder — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Link-Belt 290LX Road Builder and 3 related models — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Link-Belt 290 LX excavators — Heavyequipmentforums. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Link-Belt — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Classification in the linked listing
Guide	As-listed machine class
Link-Belt 290LX Road Builder and 3 related models	full-size excavator

Link-Belt 290LX Road Builder and 3 related models: Configuration records

290LX Road Builder

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	32.93 ft
Shipping Height Of Unit	11 ft
Max Cutting Height	34.19 ft
Max Loading Height	24.25 ft
Max Reach Along Ground	34.52 ft
Max Vertical Wall Digging Depth	20.35 ft
Max Digging Depth	22.61 ft
Boom/Stick Option (Hex) 1	Boom 20'2" (6150mm) / Stick 10'6" (3200mm)
Dimensions and weight
Ground Clearance	2.32 ft
Height To Top Of Cab	11 ft
Width To Outside Of Tracks	11.95 ft
Length Of Track On Ground	13.19 ft
Tail Swing Radius	10.44 ft
Removal Counterweight Clearance	4.66 ft
Undercarriage
Track Gauge	9.65 ft
Shoe Size	27.56 in
Ground Pressure	7.55 psi
Number Of Shoes Per Side	48
Number Of Carrier Rollers Per Side	2
Max Travel Speed	2.5 mph
Number Of Track Rollers Per Side	8
Engine
Number Of Cylinders	6
Engine Model	CC-6BG1TC
Net Power	177 hp
Power Measured @	2,200 rpm
Max Torque	443 lb-ft
Displacement	396 cu in
Aspiration	Turbocharged with Intercooler
Torque Measured @	1,800 rpm
Operational
Operating Weight	71,266 lb
Fuel Capacity	89.9 gal
Cooling System Fluid Capacity	7.7 gal
Hydraulic System Fluid Capacity	63.5 gal
Engine Oil Capacity	6.4 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	1.6 gal
Alternator Supplied Amperage	50 amps
Hydraulic System Relief Valve Pressure	4,970 psi
Hydraulic Pump Flow Capacity	116.8 gpm
Swing Mechanism
Swing Speed	8.1 rpm
Swing Torque	81,870 lb-ft

Source

330LX

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	36.23 ft
Shipping Height Of Unit	10.8 ft
Max Cutting Height	34.03 ft
Max Loading Height	23.73 ft
Max Reach Along Ground	36.03 ft
Max Vertical Wall Digging Depth	20.84 ft
Max Digging Depth	24.09 ft
Boom/Stick Option (Hex) 1	Boom 21'2" (6450mm) / Stick 10'8" (3250mm)
Dimensions and weight
Height To Top Of Cab	10.5 ft
Width To Outside Of Tracks	11.16 ft
Length Of Track On Ground	13.26 ft
Tail Swing Radius	11.23 ft
Removal Counterweight Clearance	3.97 ft
Undercarriage
Track Gauge	8.54 ft
Shoe Size	31.5 in
Ground Pressure	7.2 psi
Number Of Shoes Per Side	48
Number Of Carrier Rollers Per Side	2
Max Travel Speed	3.4 mph
Number Of Track Rollers Per Side	8
Engine
Number Of Cylinders	6
Engine Model	AA-6HK1XQB
Net Power	247 hp
Power Measured @	2,000 rpm
Max Torque	687 lb-ft
Displacement	475 cu in
Aspiration	Turbocharged with Intercooler
Torque Measured @	1,600 rpm
Operational
Operating Weight	78,000 lb
Fuel Capacity	153.3 gal
Cooling System Fluid Capacity	11.1 gal
Hydraulic System Fluid Capacity	92.5 gal
Engine Oil Capacity	8.8 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	1.6 gal
Alternator Supplied Amperage	50 amps
Hydraulic System Relief Valve Pressure	4,970 psi
Hydraulic Pump Flow Capacity	150 gpm
Swing Mechanism
Swing Speed	9.6 rpm
Swing Torque	82,680 lb-ft
Buckets
Reference Bucket Capacity	1.6 yd3
Minimum Bucket Capacity	1.3 yd3
Maximum Bucket Capacity	3 yd3

Source

370LX Road Builder

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	36.26 ft
Shipping Height Of Unit	11.41 ft
Max Cutting Height	35.08 ft
Max Loading Height	24.74 ft
Max Reach Along Ground	35.83 ft
Max Vertical Wall Digging Depth	20.94 ft
Max Digging Depth	23.1 ft
Boom/Stick Option (Hex) 1	Boom 21'2" (6450mm) / Stick 10'8" (3250mm)
Dimensions and weight
Ground Clearance	2.39 ft
Height To Top Of Cab	11.41 ft
Width To Outside Of Tracks	11.95 ft
Length Of Track On Ground	14.34 ft
Tail Swing Radius	11.46 ft
Removal Counterweight Clearance	4.95 ft
Undercarriage
Track Gauge	9.65 ft
Shoe Size	27.56 in
Ground Pressure	9.52 psi
Number Of Shoes Per Side	50
Number Of Carrier Rollers Per Side	2
Max Travel Speed	2.6 mph
Number Of Track Rollers Per Side	9
Engine
Number Of Cylinders	6
Engine Model	AA-6HK1XQB
Net Power	247 hp
Power Measured @	2,000 rpm
Max Torque	687 lb-ft
Displacement	475 cu in
Aspiration	Turbocharged with Intercooler
Torque Measured @	1,600 rpm
Operational
Operating Weight	97,891 lb
Fuel Capacity	153.3 gal
Cooling System Fluid Capacity	11.1 gal
Hydraulic System Fluid Capacity	92.5 gal
Engine Oil Capacity	8.8 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	3 gal
Alternator Supplied Amperage	50 amps
Hydraulic System Relief Valve Pressure	4,970 psi
Hydraulic Pump Flow Capacity	150 gpm
Swing Mechanism
Swing Speed	8.1 rpm
Swing Torque	112,110 lb-ft

Source

4300 Quantum Road Builder

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	35.83 ft
Shipping Height Of Unit	11.19 ft
Max Cutting Height	34.45 ft
Max Loading Height	28.38 ft
Max Reach Along Ground	35.9 ft
Max Vertical Wall Digging Depth	20.02 ft
Max Digging Depth	23.53 ft
Boom/Stick Option (Hex) 1	Boom 21'2" (6450mm) / Stick 10'7" (3230mm)
Dimensions and weight
Ground Clearance	2.32 ft
Height To Top Of Cab	10.96 ft
Width To Outside Of Tracks	11.95 ft
Length Of Track On Ground	13.26 ft
Tail Swing Radius	11 ft
Removal Counterweight Clearance	4.73 ft
Undercarriage
Track Gauge	9.65 ft
Shoe Size	27.56 in
Ground Pressure	8.7 psi
Number Of Shoes Per Side	49
Number Of Carrier Rollers Per Side	2
Max Travel Speed	3.1 mph
Number Of Track Rollers Per Side	8
Engine
Number Of Cylinders	6
Engine Model	MII-C265
Net Power	240 hp
Power Measured @	1,700 rpm
Max Torque	900 lb-ft
Displacement	661 cu in
Aspiration	Turbocharged
Torque Measured @	1,300 rpm
Operational
Operating Weight	83,304 lb
Fuel Capacity	153.3 gal
Cooling System Fluid Capacity	15.1 gal
Hydraulic System Fluid Capacity	84.6 gal
Engine Oil Capacity	9 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	3.4 gal
Alternator Supplied Amperage	70 amps
Hydraulic System Relief Valve Pressure	4,620 psi
Hydraulic Pump Flow Capacity	142 gpm
Swing Mechanism
Swing Speed	10.1 rpm
Swing Torque	73,709 lb-ft
Buckets
Reference Bucket Capacity	1.5 yd3
Minimum Bucket Capacity	1.2 yd3
Maximum Bucket Capacity	2.8 yd3

Source

More in Link-Belt: 3900 Quantum/4300 Quantum specs, 210X2–290X2 Long Front specs, 330LX Tier 3/350X2/350X3 specs.

Link-Belt 290LX Road Builder and 3 related models specifications

290LX Road Builder and 3 related models: owner reports

Sources for this page

Link-Belt 290LX Road Builder and 3 related models: Configuration records