Machine models

Komatsu PC400-6 to PC450LC-6 MIGHTY specifications

Entries in this reference
Listing-entry count
5

Short answer

Komatsu PC400-6 to PC450LC-6 MIGHTY: full-size excavators.

Selected configuration figures
Configuration	Documented field and quantity
PC400-6	Gross Power 305.8 hp Operating Weight 91,271 lb
PC400LC-8	Net Power 344.7 hp Operating Weight 100,637 lb
PC450-6	Net Power 306 hp Operating Weight 94,931 lb
PC450-6 MIGHTY	Gross Power 305.8 hp Operating Weight 93,123 lb
PC450LC-6 MIGHTY	Gross Power 305.8 hp Operating Weight 95,901 lb

PC400-6 to PC450LC-6 MIGHTY specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Komatsu	PC400-6 to PC450LC-6 MIGHTY	5	PC400-6, PC400LC-8, PC450-6, PC450-6 MIGHTY, and PC450LC-6 MIGHTY

Boom/Stick Option (Hex) 1
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Shipping Length Of Unit	39.1 ft	39.06 ft	39.59 ft	39.13 ft	39.13 ft
Shipping Height Of Unit	12.19 ft	12.64 ft	12.19 ft	11.91 ft	11.91 ft
Max Cutting Height	33.78 ft	33.83 ft	34.21 ft	35.83 ft	35.83 ft
Max Loading Height	23.15 ft	23.2 ft	23.58 ft	24.84 ft	24.84 ft
Max Reach Along Ground	35.54 ft	35.62 ft	36.27 ft	38.75 ft	38.75 ft
Max Vertical Wall Digging Depth	17.51 ft	17.41 ft	17.08 ft	22.48 ft	22.48 ft
Max Digging Depth	22.27 ft	22.46 ft	21.84 ft	25.46 ft	25.46 ft
Boom/Stick Option (Hex) 1	Boom 23'2" (7060mm)/Stick 7'10" (2400mm)	One-piece Boom 7060mm / arm 2400mm	Monoboom w/ stick 2400mm	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)

Dimensions and weight
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Ground Clearance	1.83 ft	1.81 ft	1.83 ft	1.83 ft	1.83 ft
Height To Top Of Cab	10.72 ft	10.72 ft	10.72 ft	10.72 ft	10.72 ft
Width To Outside Of Tracks	10.96 ft	11.95 ft	11.39 ft	10.96 ft	10.96 ft
Length Of Track On Ground	13.19 ft	17.67 ft	13.19 ft	13.19 ft	14.28 ft
Tail Swing Radius	11.49 ft	11.96 ft	11.98 ft	11.49 ft	11.49 ft
Removal Counterweight Clearance	4.34 ft	4.34 ft	4.34 ft	4.34 ft	4.34 ft

Undercarriage
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Track Gauge	8.99 ft	8.99 ft	9.42 ft	8.99 ft	8.99 ft
Shoe Size	23.63 in	35.44 in	23.63 in	23.63 in	23.63 in
Ground Pressure	11.2 psi	9.73 psi	10.1 psi	11.5 psi	11.1 psi
Max Travel Speed	3.42 mph	3.42 mph	3.36 mph	3.42 mph	3.42 mph

Specification	PC400LC-8	PC450-6
Drawbar Pull	73,962 lb	74,957 lb
Number Of Track Rollers Per Side	8	7
Number Of Shoes Per Side	49	46
Number Of Carrier Rollers Per Side	2	2

Engine
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Number Of Cylinders	6	6	6	6	6
Engine Model	SA6D125E	SAA6D125E-5	SA6D125E-2	SA6D125E	SA6D125E
Gross Power	305.8 hp	362.1 hp	323 hp	305.8 hp	305.8 hp
Power Measured @	2,050 rpm	1,900 rpm	1,950 rpm	2,050 rpm	2,050 rpm
Displacement	673.8 cu in	673.8 cu in	673.8 cu in	673.8 cu in	673.8 cu in

Specification	PC400LC-8	PC450-6
Net Power	344.7 hp	306 hp
Aspiration	Turbocharged, aftercooled	Turbocharged

Operational
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Operating Weight	91,271 lb	100,637 lb	94,931 lb	93,123 lb	95,901 lb
Fuel Capacity	159.9 gal	171.8 gal	159.9 gal	159.9 gal	159.9 gal
Hydraulic System Fluid Capacity	71.4 gal	65.6 gal	71.4 gal	71.4 gal	71.4 gal
Hydraulic Pump Flow Capacity	172.3 gpm	182.3 gpm	198.7 gpm	172.3 gpm	172.3 gpm

Specification	PC400-6	PC400LC-8	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Hydraulic System Relief Valve Pressure	5,050 psi	5,400 psi	5,050 psi	5,050 psi

Specification	PC400LC-8	PC450-6
Cooling System Fluid Capacity	9.8 gal	12.5 gal
Engine Oil Capacity	10.1 gal	8.5 gal
Operating Voltage	24 V	24 V
Swing Drive Fluid Capacity	4.3 gal	5.6 gal
Alternator Supplied Amperage	50 amps	50 amps

Swing Mechanism
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Swing Speed	9.3 rpm	9 rpm	9.1 rpm	9.3 rpm	9.3 rpm

Specification	PC400LC-8
Swing Torque	111,059 lb-ft

Buckets
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Reference Bucket Capacity	2.4 yd3	2.6 yd3	2.7 yd3	2.4 yd3	2.4 yd3

Specification	PC400-6	PC400LC-8	PC450-6	PC450LC-6 MIGHTY
Minimum Bucket Capacity	1.8 yd3	1.5 yd3	1.8 yd3	2.4 yd3

Specification	PC400-6	PC400LC-8	PC450LC-6 MIGHTY
Maximum Bucket Capacity	2.9 yd3	3.8 yd3	2.7 yd3

Variants — Source comparison annotation
Source guide	Differing-field count reported
PC400-6 to PC450LC-6 MIGHTY	40

Ratios
Figure	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Engine horsepower per 1,000 lb of weight	3.4	3.4	3.2	3.3	3.2
Fuel tank per engine horsepower	0.52 gal	0.50 gal	0.52 gal	0.52 gal	0.52 gal

Figure	PC400-6	PC400LC-8	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Hydraulic power from the listed pump flow and relief pressure	507.7 hp	574.3 hp	507.7 hp	507.7 hp

PC400-6 to PC450LC-6 MIGHTY: owner reports

Sources: 3 forum discussions about the Komatsu PC400 excavators (PC400-3, -5, LC-7); heavyequipmentforums.com.

Komatsu: Erratic tracking, a slowing bucket and a block resurfacing question.

Sources: 3 forum discussions about the Komatsu PC450 excavators (PC450-6, PC450-7); heavyequipmentforums.com.

Komatsu: Monitor stays on, boom pressure and an NE sensor.

PC400-6 to PC450LC-6 MIGHTY: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	full-size excavator	Komatsu and the PC450, PC450LC line that the PC400-6, PC400LC-8, PC450-6, PC450-6 MIGHTY belongs to (no title names the exact model)	10

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

Topic in the title	Threads	Share of matching threads
hydraulics	2	20%
electrical and sensors	2	20%

Komatsu Pc400 6 Hyd Slow When Starting (Heavy Equipment Forums, 2023-04-18)
Kumatsu Pc450 LC Lever Not Working (Heavy Equipment Forums, 2022-03-31)
Komatsu Pc400 6 Throttle Issues (Heavy Equipment Forums, 2019-06-27)
Komatsu Pc400lc 8 Slow Hyd And Pilot System Stops Working (Heavy Equipment Forums, 2018-08-31)

PC400-6 to PC450LC-6 MIGHTY: 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	PC400-6, PC400LC-8, PC450-6	No matching offers in this snapshot

Dated CPSC search
Date	Database	Names queried	Result
2026-09-24	U.S. Consumer Product Safety Commission	Komatsu; PC400-6, PC400LC-8, PC450-6	No matching recall in the stated search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Komatsu PC400-6 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu PC400LC-8 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu PC450-6 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu PC450-6 MIGHTY — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu PC450LC-6 MIGHTY — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Komatsu PC400-6 to PC450LC-6 MIGHTY — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Komatsu PC400 excavators (PC400-3, -5, LC-7) — Heavyequipmentforums. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Komatsu — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Komatsu PC400-6 to PC450LC-6 MIGHTY: Configuration records

PC400-6

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	39.1 ft
Shipping Height Of Unit	12.19 ft
Max Cutting Height	33.78 ft
Max Loading Height	23.15 ft
Max Reach Along Ground	35.54 ft
Max Vertical Wall Digging Depth	17.51 ft
Max Digging Depth	22.27 ft
Boom/Stick Option (Hex) 1	Boom 23'2" (7060mm)/Stick 7'10" (2400mm)
Dimensions and weight
Ground Clearance	1.83 ft
Height To Top Of Cab	10.72 ft
Width To Outside Of Tracks	10.96 ft
Length Of Track On Ground	13.19 ft
Tail Swing Radius	11.49 ft
Removal Counterweight Clearance	4.34 ft
Undercarriage
Track Gauge	8.99 ft
Shoe Size	23.63 in
Max Travel Speed	3.42 mph
Ground Pressure	11.2 psi
Engine
Number Of Cylinders	6
Engine Model	SA6D125E
Gross Power	305.8 hp
Power Measured @	2,050 rpm
Displacement	673.8 cu in
Operational
Operating Weight	91,271 lb
Fuel Capacity	159.9 gal
Hydraulic System Fluid Capacity	71.4 gal
Hydraulic System Relief Valve Pressure	5,050 psi
Hydraulic Pump Flow Capacity	172.3 gpm
Swing Mechanism
Swing Speed	9.3 rpm
Buckets
Reference Bucket Capacity	2.4 yd3
Minimum Bucket Capacity	1.8 yd3
Maximum Bucket Capacity	2.9 yd3

Source

PC400LC-8

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	39.06 ft
Shipping Height Of Unit	12.64 ft
Max Cutting Height	33.83 ft
Max Loading Height	23.2 ft
Max Reach Along Ground	35.62 ft
Max Vertical Wall Digging Depth	17.41 ft
Max Digging Depth	22.46 ft
Boom/Stick Option (Hex) 1	One-piece Boom 7060mm / arm 2400mm
Dimensions and weight
Ground Clearance	1.81 ft
Height To Top Of Cab	10.72 ft
Width To Outside Of Tracks	11.95 ft
Length Of Track On Ground	17.67 ft
Tail Swing Radius	11.96 ft
Removal Counterweight Clearance	4.34 ft
Undercarriage
Track Gauge	8.99 ft
Shoe Size	35.44 in
Max Travel Speed	3.42 mph
Number Of Carrier Rollers Per Side	2
Number Of Shoes Per Side	49
Drawbar Pull	73,962 lb
Number Of Track Rollers Per Side	8
Ground Pressure	9.73 psi
Engine
Number Of Cylinders	6
Engine Model	SAA6D125E-5
Net Power	344.7 hp
Gross Power	362.1 hp
Power Measured @	1,900 rpm
Displacement	673.8 cu in
Aspiration	Turbocharged, aftercooled
Operational
Operating Weight	100,637 lb
Fuel Capacity	171.8 gal
Cooling System Fluid Capacity	9.8 gal
Hydraulic System Fluid Capacity	65.6 gal
Engine Oil Capacity	10.1 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	4.3 gal
Alternator Supplied Amperage	50 amps
Hydraulic System Relief Valve Pressure	5,400 psi
Hydraulic Pump Flow Capacity	182.3 gpm
Swing Mechanism
Swing Torque	111,059 lb-ft
Swing Speed	9 rpm
Buckets
Reference Bucket Capacity	2.6 yd3
Minimum Bucket Capacity	1.5 yd3
Maximum Bucket Capacity	3.8 yd3

Source

PC450-6

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	39.59 ft
Shipping Height Of Unit	12.19 ft
Max Cutting Height	34.21 ft
Max Loading Height	23.58 ft
Max Reach Along Ground	36.27 ft
Max Vertical Wall Digging Depth	17.08 ft
Max Digging Depth	21.84 ft
Boom/Stick Option (Hex) 1	Monoboom w/ stick 2400mm
Dimensions and weight
Ground Clearance	1.83 ft
Height To Top Of Cab	10.72 ft
Width To Outside Of Tracks	11.39 ft
Length Of Track On Ground	13.19 ft
Tail Swing Radius	11.98 ft
Removal Counterweight Clearance	4.34 ft
Undercarriage
Track Gauge	9.42 ft
Shoe Size	23.63 in
Max Travel Speed	3.36 mph
Number Of Carrier Rollers Per Side	2
Number Of Shoes Per Side	46
Drawbar Pull	74,957 lb
Number Of Track Rollers Per Side	7
Ground Pressure	10.1 psi
Engine
Number Of Cylinders	6
Engine Model	SA6D125E-2
Net Power	306 hp
Gross Power	323 hp
Power Measured @	1,950 rpm
Displacement	673.8 cu in
Aspiration	Turbocharged
Operational
Operating Weight	94,931 lb
Fuel Capacity	159.9 gal
Cooling System Fluid Capacity	12.5 gal
Hydraulic System Fluid Capacity	71.4 gal
Engine Oil Capacity	8.5 gal
Operating Voltage	24 V
Swing Drive Fluid Capacity	5.6 gal
Alternator Supplied Amperage	50 amps
Hydraulic Pump Flow Capacity	198.7 gpm
Swing Mechanism
Swing Speed	9.1 rpm
Buckets
Reference Bucket Capacity	2.7 yd3
Minimum Bucket Capacity	1.8 yd3

Source

PC450-6 MIGHTY

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	39.13 ft
Shipping Height Of Unit	11.91 ft
Max Cutting Height	35.83 ft
Max Loading Height	24.84 ft
Max Reach Along Ground	38.75 ft
Max Vertical Wall Digging Depth	22.48 ft
Max Digging Depth	25.46 ft
Boom/Stick Option (Hex) 1	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)
Dimensions and weight
Ground Clearance	1.83 ft
Height To Top Of Cab	10.72 ft
Width To Outside Of Tracks	10.96 ft
Length Of Track On Ground	13.19 ft
Tail Swing Radius	11.49 ft
Removal Counterweight Clearance	4.34 ft
Undercarriage
Track Gauge	8.99 ft
Shoe Size	23.63 in
Max Travel Speed	3.42 mph
Ground Pressure	11.5 psi
Engine
Number Of Cylinders	6
Engine Model	SA6D125E
Gross Power	305.8 hp
Power Measured @	2,050 rpm
Displacement	673.8 cu in
Operational
Operating Weight	93,123 lb
Fuel Capacity	159.9 gal
Hydraulic System Fluid Capacity	71.4 gal
Hydraulic System Relief Valve Pressure	5,050 psi
Hydraulic Pump Flow Capacity	172.3 gpm
Swing Mechanism
Swing Speed	9.3 rpm
Buckets
Reference Bucket Capacity	2.4 yd3

Source

PC450LC-6 MIGHTY

Specification	Source figure
Boom/Stick Option (Hex) 1
Shipping Length Of Unit	39.13 ft
Shipping Height Of Unit	11.91 ft
Max Cutting Height	35.83 ft
Max Loading Height	24.84 ft
Max Reach Along Ground	38.75 ft
Max Vertical Wall Digging Depth	22.48 ft
Max Digging Depth	25.46 ft
Boom/Stick Option (Hex) 1	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)
Dimensions and weight
Ground Clearance	1.83 ft
Height To Top Of Cab	10.72 ft
Width To Outside Of Tracks	10.96 ft
Length Of Track On Ground	14.28 ft
Tail Swing Radius	11.49 ft
Removal Counterweight Clearance	4.34 ft
Undercarriage
Track Gauge	8.99 ft
Shoe Size	23.63 in
Max Travel Speed	3.42 mph
Ground Pressure	11.1 psi
Engine
Number Of Cylinders	6
Engine Model	SA6D125E
Gross Power	305.8 hp
Power Measured @	2,050 rpm
Displacement	673.8 cu in
Operational
Operating Weight	95,901 lb
Fuel Capacity	159.9 gal
Hydraulic System Fluid Capacity	71.4 gal
Hydraulic System Relief Valve Pressure	5,050 psi
Hydraulic Pump Flow Capacity	172.3 gpm
Swing Mechanism
Swing Speed	9.3 rpm
Buckets
Reference Bucket Capacity	2.4 yd3
Minimum Bucket Capacity	2.4 yd3
Maximum Bucket Capacity	2.7 yd3

Source

Compare Komatsu PC400-6, PC400LC-8, PC450-6, PC450-6 MIGHTY, PC450LC-6 MIGHTY

Boom/Stick Option (Hex) 1
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Shipping Length Of Unit	39.1 ft	39.06 ft	39.59 ft	39.13 ft	39.13 ft
Shipping Height Of Unit	12.19 ft	12.64 ft	12.19 ft	11.91 ft	11.91 ft
Max Cutting Height	33.78 ft	33.83 ft	34.21 ft	35.83 ft	35.83 ft
Max Loading Height	23.15 ft	23.2 ft	23.58 ft	24.84 ft	24.84 ft
Max Reach Along Ground	35.54 ft	35.62 ft	36.27 ft	38.75 ft	38.75 ft
Max Vertical Wall Digging Depth	17.51 ft	17.41 ft	17.08 ft	22.48 ft	22.48 ft
Max Digging Depth	22.27 ft	22.46 ft	21.84 ft	25.46 ft	25.46 ft
Boom/Stick Option (Hex) 1	Boom 23'2" (7060mm)/Stick 7'10" (2400mm)	One-piece Boom 7060mm / arm 2400mm	Monoboom w/ stick 2400mm	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)	Boom 23'2" (7060mm)/Stick 11'1" (3380mm)

Dimensions and weight
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Ground Clearance	1.83 ft	1.81 ft	1.83 ft	1.83 ft	1.83 ft
Height To Top Of Cab	10.72 ft	10.72 ft	10.72 ft	10.72 ft	10.72 ft
Width To Outside Of Tracks	10.96 ft	11.95 ft	11.39 ft	10.96 ft	10.96 ft
Length Of Track On Ground	13.19 ft	17.67 ft	13.19 ft	13.19 ft	14.28 ft
Tail Swing Radius	11.49 ft	11.96 ft	11.98 ft	11.49 ft	11.49 ft
Removal Counterweight Clearance	4.34 ft	4.34 ft	4.34 ft	4.34 ft	4.34 ft

Undercarriage
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Track Gauge	8.99 ft	8.99 ft	9.42 ft	8.99 ft	8.99 ft
Shoe Size	23.63 in	35.44 in	23.63 in	23.63 in	23.63 in
Ground Pressure	11.2 psi	9.73 psi	10.1 psi	11.5 psi	11.1 psi
Max Travel Speed	3.42 mph	3.42 mph	3.36 mph	3.42 mph	3.42 mph

Engine
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Number Of Cylinders	6	6	6	6	6
Engine Model	SA6D125E	SAA6D125E-5	SA6D125E-2	SA6D125E	SA6D125E
Gross Power	305.8 hp	362.1 hp	323 hp	305.8 hp	305.8 hp
Power Measured @	2,050 rpm	1,900 rpm	1,950 rpm	2,050 rpm	2,050 rpm
Displacement	673.8 cu in	673.8 cu in	673.8 cu in	673.8 cu in	673.8 cu in

Operational
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Operating Weight	91,271 lb	100,637 lb	94,931 lb	93,123 lb	95,901 lb
Fuel Capacity	159.9 gal	171.8 gal	159.9 gal	159.9 gal	159.9 gal
Hydraulic System Fluid Capacity	71.4 gal	65.6 gal	71.4 gal	71.4 gal	71.4 gal
Hydraulic Pump Flow Capacity	172.3 gpm	182.3 gpm	198.7 gpm	172.3 gpm	172.3 gpm

Swing Mechanism
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Swing Speed	9.3 rpm	9 rpm	9.1 rpm	9.3 rpm	9.3 rpm

Buckets
Specification	PC400-6	PC400LC-8	PC450-6	PC450-6 MIGHTY	PC450LC-6 MIGHTY
Reference Bucket Capacity	2.4 yd3	2.6 yd3	2.7 yd3	2.4 yd3	2.4 yd3

More in Komatsu: PC300LC-7–PC350LC-8: short tail versus quarry, PC360LC-10–PC400LC-6 EXCEL: engines/arrangements, PC400LC-7/PC490LC-10/11: circuits/editions.

Komatsu PC400-6 to PC450LC-6 MIGHTY specifications

PC400-6 to PC450LC-6 MIGHTY: owner reports

Sources for this page

Komatsu PC400-6 to PC450LC-6 MIGHTY: Configuration records