FieldSpec
Equipment menu

Machine models

Komatsu PC18MR-2 and PC20MR-2 specifications

Entries in this reference
Listing-entry count
2
Short answer

Komatsu PC18MR-2 and PC20MR-2: excavators.

Selected configuration figures
ConfigurationDocumented field and quantity
PC18MR-2
Gross Power
15 hp
Max Cutting Height
11.83 ft
PC20MR-2
Gross Power
20.8 hp
Max Cutting Height
13.42 ft
PC18MR-2 and PC20MR-2 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
KomatsuPC18MR-2 and PC20MR-22PC18MR-2 and PC20MR-2
Boom/Stick Option (Hex) 1
SpecificationPC18MR-2PC20MR-2
Max Cutting Height11.83 ft13.42 ft
Max Loading Height8.58 ft9.25 ft
Max Reach Along Ground13.17 ft13.67 ft
Max Vertical Wall Digging Depth5.83 ft6.42 ft
Max Digging Depth7.08 ft7.75 ft
Boom/Stick Option (Hex) 1965mm 3'2"1,016mm 3'4"
Dimensions and weight
SpecificationPC18MR-2PC20MR-2
Width To Outside Of Tracks3.25 ft3.92 ft
Length Of Track On Ground5.08 ft6.17 ft
Ground Clearance12 ft9.08 ft
Height To Top Of Cab7.92 ft8.25 ft
Tail Swing Radius2.33 ft2.58 ft
SpecificationPC20MR-2
Removal Counterweight Clearance13.33 ft
Undercarriage
SpecificationPC18MR-2PC20MR-2
Max Travel Speed2.7 mph2.9 mph
Number Of Track Rollers Per Side33
Engine
SpecificationPC18MR-2PC20MR-2
Number Of Cylinders33
Engine Model3D67E-53D76E-5
Gross Power15 hp20.8 hp
Power Measured @47.4 rpm1.2 rpm
Displacement47.4 cu in68 cu in
Operational
SpecificationPC18MR-2PC20MR-2
Operating Weight1,855 lb2,295 lb
Fuel Capacity5 gal7.4 gal
Hydraulic System Fluid Capacity4 gal5 gal
Engine Oil Capacity0.9 gal0.9 gal
Operating Voltage12 V12 V
SpecificationPC18MR-2
Alternator Supplied Amperage40 amps
Swing Mechanism
SpecificationPC18MR-2PC20MR-2
Swing Speed8.9 rpm8.9 rpm
Buckets
SpecificationPC18MR-2PC20MR-2
Reference Bucket Capacity0.1 yd30.1 yd3
Variants — Source comparison annotation
Source guideDiffering-field count reported
PC18MR-2 and PC20MR-221
Ratios
FigurePC18MR-2PC20MR-2
Engine horsepower per 1,000 lb of weight8.19.1
Fuel tank per engine horsepower0.33 gal0.36 gal

Komatsu PC18MR-2 and PC20MR-2: excavator

PC18MR-2 and PC20MR-2: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment ForumsexcavatorKomatsu and the PC18MR line that the PC18MR-2, PC20MR-2 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 instead4
Used market for the PC18MR-2 and PC20MR-2 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderKomatsu excavator3
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
PC18MR-212006$6,854$6,854$6,854None shown
PC20MR-222010$15,000$15,230$15,115None shown
PC18MR-2 and PC20MR-2: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionKomatsu together with the excavator PC18MR-2, PC20MR-2No matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Forum threads
Used-market listings
Federal agency data
Recorded observations — Forum-title snapshot
Observation fieldRecorded value
Title count4
Forum indexesHeavy Equipment Forums
Search wordingthe PC18MR-2 and PC20MR-2 excavator
Latest title quoted by the referenceKomatsu Pc18mr 3 Year Of Manufacture

Komatsu PC18MR-2 and PC20MR-2: Configuration records

PC18MR-2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Max Cutting Height11.83 ft
Max Loading Height8.58 ft
Max Reach Along Ground13.17 ft
Max Vertical Wall Digging Depth5.83 ft
Max Digging Depth7.08 ft
Boom/Stick Option (Hex) 1965mm 3'2"
Dimensions and weight
Width To Outside Of Tracks3.25 ft
Length Of Track On Ground5.08 ft
Height To Top Of Cab7.92 ft
Tail Swing Radius2.33 ft
Undercarriage
Max Travel Speed2.7 mph
Number Of Track Rollers Per Side3
Engine
Engine Model3D67E-5
Gross Power15 hp
Power Measured @47.4 rpm
Displacement47.4 cu in
Number Of Cylinders3
Operational
Fuel Capacity5 gal
Hydraulic System Fluid Capacity4 gal
Engine Oil Capacity0.9 gal
Operating Voltage12 V
Alternator Supplied Amperage40 amps
Swing Mechanism
Swing Speed8.9 rpm
Buckets
Reference Bucket Capacity0.1 yd3

Source

PC20MR-2
SpecificationSource figure
Boom/Stick Option (Hex) 1
Max Cutting Height13.42 ft
Max Loading Height9.25 ft
Max Reach Along Ground13.67 ft
Max Vertical Wall Digging Depth6.42 ft
Max Digging Depth7.75 ft
Boom/Stick Option (Hex) 11,016mm 3'4"
Dimensions and weight
Width To Outside Of Tracks3.92 ft
Length Of Track On Ground6.17 ft
Height To Top Of Cab8.25 ft
Tail Swing Radius2.58 ft
Removal Counterweight Clearance13.33 ft
Undercarriage
Max Travel Speed2.9 mph
Number Of Track Rollers Per Side3
Engine
Engine Model3D76E-5
Gross Power20.8 hp
Power Measured @1.2 rpm
Displacement68 cu in
Number Of Cylinders3
Operational
Fuel Capacity7.4 gal
Hydraulic System Fluid Capacity5 gal
Engine Oil Capacity0.9 gal
Operating Voltage12 V
Swing Mechanism
Swing Speed8.9 rpm
Buckets
Reference Bucket Capacity0.1 yd3

Source

Compare Komatsu PC18MR-2, PC20MR-2
Boom/Stick Option (Hex) 1
SpecificationPC18MR-2PC20MR-2
Max Cutting Height11.83 ft13.42 ft
Max Loading Height8.58 ft9.25 ft
Max Reach Along Ground13.17 ft13.67 ft
Max Vertical Wall Digging Depth5.83 ft6.42 ft
Max Digging Depth7.08 ft7.75 ft
Boom/Stick Option (Hex) 1965mm 3'2"1,016mm 3'4"
Dimensions and weight
SpecificationPC18MR-2PC20MR-2
Width To Outside Of Tracks3.25 ft3.92 ft
Length Of Track On Ground5.08 ft6.17 ft
Height To Top Of Cab7.92 ft8.25 ft
Tail Swing Radius2.33 ft2.58 ft
Undercarriage
SpecificationPC18MR-2PC20MR-2
Max Travel Speed2.7 mph2.9 mph
Number Of Track Rollers Per Side33
Engine
SpecificationPC18MR-2PC20MR-2
Number Of Cylinders33
Engine Model3D67E-53D76E-5
Gross Power15 hp20.8 hp
Power Measured @47.4 rpm1.2 rpm
Displacement47.4 cu in68 cu in
Operational
SpecificationPC18MR-2PC20MR-2
Fuel Capacity5 gal7.4 gal
Hydraulic System Fluid Capacity4 gal5 gal
Engine Oil Capacity0.9 gal0.9 gal
Operating Voltage12 V12 V
Swing Mechanism
SpecificationPC18MR-2PC20MR-2
Swing Speed8.9 rpm8.9 rpm
Buckets
SpecificationPC18MR-2PC20MR-2
Reference Bucket Capacity0.1 yd30.1 yd3

More in Komatsu: PC10-2, PC12R-8/PC15R-8, PC20 MRx/PC20MRX-1.