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Komatsu D150A-1 and D155A-1 specifications

Entries in this reference
Listing-entry count
2
Short answer

Komatsu D150A-1 and D155A-1: crawler dozers.

Selected configuration figures
ConfigurationDocumented field and quantity
D150A-1
Gross Power
300 hp
Operating Weight
59,350 lb
D155A-1
Gross Power
320 hp
Operating Weight
59,350 lb
D150A-1 and D155A-1 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
KomatsuD150A-1 and D155A-12D150A-1 and D155A-1
Dimensions and weight
SpecificationD150A-1D155A-1
Width Over Tracks9.22 ft9.22 ft
Length Of Track On Ground10.34 ft10.34 ft
Length W/O Blade16.74 ft16.74 ft
SpecificationD150A-1
Height To Top Of Cab11.95 ft
Undercarriage
SpecificationD150A-1D155A-1
Track Gauge7.03 ft7.03 ft
Standard Shoe Size22.05 in22.05 in
Number Of Track Rollers Per Side77
Ground Pressure10.95 psi10.95 psi
Engine
SpecificationD150A-1D155A-1
Engine ModelS6D155-4S6D155-4
Gross Power300 hp320 hp
Displacement1,175 cu in1,175 cu in
Aspirationturbochargedturbocharged
Operational
SpecificationD150A-1D155A-1
Operating Weight59,350 lb59,350 lb
Fuel Capacity158.6 gal158.6 gal
Cooling System Fluid Capacity43.6 gal43.6 gal
Transmission and speeds
SpecificationD150A-1D155A-1
Transmission TypeKomatsu TORQFLOW helical gear constant meshplanetary gear
Number Of Forward Gears63
Number Of Reverse Gears43
Max Speed - Forward8.1 mph7.4 mph
Max Speed - Reverse5.6 mph8.6 mph
Standard Blade
SpecificationD150A-1D155A-1
Blade width13.6 ft13.6 ft
Blade height62.6 in62.6 in
Capacity13.7 yd313.7 yd3
Cutting Depth22.1 in22.1 in
Variants — Source comparison annotation
Source guideDiffering-field count reported
D150A-1 and D155A-17
Ratios
FigureD150A-1D155A-1
Engine horsepower per 1,000 lb of weight5.15.4
Fuel tank per engine horsepower0.53 gal0.50 gal

D150A-1 and D155A-1: owner reports

Sources: 3 forum discussions about the Komatsu D155 dozers (D155A-1, D155AX-6); heavyequipmentforums.com.
D150A-1 and D155A-1: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumscrawler dozerKomatsu and the D155A-1. That is too few titles to say what owners mostly ask about, so the most recent are listed instead2
Used market for the D150A-1 and D155A-1 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderKomatsu crawler dozer6
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
D155A-161974 to 2002$29,450$45,352$39,00086
D150A-1 and D155A-1: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionKomatsu together with the crawler dozer D150A-1, D155A-1No matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Forum threads
Forum threads
Used-market listings
Federal agency data

Komatsu D150A-1 and D155A-1: Configuration records

D150A-1
SpecificationSource figure
Dimensions and weight
Width Over Tracks9.22 ft
Height To Top Of Cab11.95 ft
Length W/O Blade16.74 ft
Undercarriage
Standard Shoe Size22.05 in
Number Of Track Rollers Per Side7
Ground Pressure10.95 psi
Engine
Engine ModelS6D155-4
Gross Power300 hp
Displacement1,175 cu in
Aspirationturbocharged
Operational
Operating Weight59,350 lb
Fuel Capacity158.6 gal
Cooling System Fluid Capacity43.6 gal
Transmission and speeds
Number Of Forward Gears6
Number Of Reverse Gears4
Max Speed - Forward8.1 mph
Max Speed - Reverse5.6 mph
Standard Blade
Blade width13.6 ft
Capacity13.7 yd3
Cutting Depth22.1 in
Additional specifications
Length Of Track On Ground10.34 ft
Track Gauge7.03 ft
Transmission TypeKomatsu TORQFLOW helical gear constant mesh
Blade height62.6 in

Source

D155A-1
SpecificationSource figure
Dimensions and weight
Width Over Tracks9.22 ft
Length W/O Blade16.74 ft
Undercarriage
Standard Shoe Size22.05 in
Number Of Track Rollers Per Side7
Ground Pressure10.95 psi
Engine
Engine ModelS6D155-4
Gross Power320 hp
Displacement1,175 cu in
Aspirationturbocharged
Operational
Operating Weight59,350 lb
Fuel Capacity158.6 gal
Cooling System Fluid Capacity43.6 gal
Transmission and speeds
Number Of Forward Gears3
Number Of Reverse Gears3
Max Speed - Forward7.4 mph
Max Speed - Reverse8.6 mph
Standard Blade
Blade width13.6 ft
Capacity13.7 yd3
Cutting Depth22.1 in
Additional specifications
Length Of Track On Ground10.34 ft
Track Gauge7.03 ft
Transmission Typeplanetary gear
Blade height62.6 in

Source

Compare Komatsu D150A-1, D155A-1
Dimensions and weight
SpecificationD150A-1D155A-1
Width Over Tracks9.22 ft9.22 ft
Length Of Track On Ground10.34 ft10.34 ft
Length W/O Blade16.74 ft16.74 ft
Undercarriage
SpecificationD150A-1D155A-1
Track Gauge7.03 ft7.03 ft
Standard Shoe Size22.05 in22.05 in
Number Of Track Rollers Per Side77
Ground Pressure10.95 psi10.95 psi
Engine
SpecificationD150A-1D155A-1
Engine ModelS6D155-4S6D155-4
Gross Power300 hp320 hp
Displacement1,175 cu in1,175 cu in
Aspirationturbochargedturbocharged
Operational
SpecificationD150A-1D155A-1
Operating Weight59,350 lb59,350 lb
Fuel Capacity158.6 gal158.6 gal
Cooling System Fluid Capacity43.6 gal43.6 gal
Transmission and speeds
SpecificationD150A-1D155A-1
Transmission TypeKomatsu TORQFLOW helical gear constant meshplanetary gear
Number Of Forward Gears63
Number Of Reverse Gears43
Max Speed - Forward8.1 mph7.4 mph
Max Speed - Reverse5.6 mph8.6 mph
Standard Blade
SpecificationD150A-1D155A-1
Blade width13.6 ft13.6 ft
Blade height62.6 in62.6 in
Capacity13.7 yd313.7 yd3
Cutting Depth22.1 in22.1 in

More in Komatsu: D155AX-3–D155AX-5E1, D80P-18/D85A-18/D85P-21: pumps/serial changes, D155S-1.