Machine models

Komatsu D61EX-12 to DP61PX-15EO specifications

Entries in this reference
Listing-entry count
4

Short answer

Komatsu D61EX-12 to DP61PX-15EO: crawler dozers.

Selected configuration figures
Configuration	Documented field and quantity
D61EX-12	Net Power 152 hp Operating Weight 37,258 lb
D61PX-12	Net Power 152 hp Operating Weight 39,242 lb
D61PX-15	Gross Power 170.4 hp Operating Weight 40,697 lb
DP61PX-15EO	Gross Power 170 hp Operating Weight 34,440 lb

D61EX-12 to DP61PX-15EO specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Komatsu	D61EX-12 to DP61PX-15EO	4	D61EX-12, D61PX-12, D61PX-15, and DP61PX-15EO

Dimensions and weight
Specification	D61EX-12	D61PX-12	D61PX-15
Length W/ Blade	17.85 ft	17.85 ft	17.85 ft
Height To Top Of Cab	10.22 ft	10.22 ft	10.34 ft
Length Of Track On Ground	10.41 ft	10.41 ft	10.41 ft

Specification	D61EX-12	D61PX-12
Width Over Tracks	6.24 ft	7.03 ft

Specification	D61PX-15
Ground Clearance	1.3 ft

Undercarriage
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Track Gauge	6.24 ft	7.03 ft	7.03 ft	7 ft
Standard Shoe Size	23.63 in	33.86 in	33.86 in	34 in
Ground Contact Area	5,896 in2	8,451 in2	8,451 in2	8,451 in2
Number Of Shoes Per Side	46	46	46	46
Number Of Track Rollers Per Side	8	8	8	8

Specification	D61EX-12	D61PX-12	DP61PX-15EO
Ground Pressure	6.33 psi	4.65 psi	4.83 psi

Specification	DP61PX-15EO
Track Pitch	10.5 in

Engine
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Number Of Cylinders	6	6	6	6
Engine Model	S6D114E-1	S6D114E-1	SAA6D107E-1	SAA6D107E-1
Net Power	152 hp	152 hp	167.7 hp	168 hp
Power Measured @	1,850 rpm	1,850 rpm	1,850 rpm	1,850 rpm
Displacement	506.5 cu in	506.5 cu in	504.7 cu in	6.7 cu in

Specification	D61EX-12	D61PX-12
Max Torque	578.3 lb-ft	578.3 lb-ft
Torque Measured @	1,300 rpm	1,300 rpm

Specification	D61EX-12	D61PX-15
Aspiration	Turbocharged	turbocharged

Specification	D61PX-15	DP61PX-15EO
Gross Power	170.4 hp	170 hp

Operational
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Operating Weight	37,258 lb	39,242 lb	40,697 lb	34,440 lb
Fuel Capacity	83.3 gal	83.3 gal	103.1 gal	103 gal
Cooling System Fluid Capacity	11.7 gal	11.7 gal	11.9 gal	8.5 gal
Engine Oil Capacity	5.1 gal	5.1 gal	5.1 gal	7.7 gal
Hydraulic Fluid Capacity	12.7 gal	12.7 gal	14.6 gal	0.3 gal
Final Drives Fluid Capacity	7.6 gal	7.6 gal	7.6 gal	7.5 gal

Specification	D61EX-12	D61PX-12	DP61PX-15EO
Powertrain Fluid Capacity	11.7 gal	11.7 gal	78.2 gal

Specification	D61EX-12	D61PX-12
Operating Voltage	24 V	24 V
Alternator Supplied Amperage	35 amps	35 amps

Transmission and speeds
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Transmission Type	TORQFLOW	TORQFLOW	TORQFLOW planetary gear	TORQFLOW
Number Of Forward Gears	3	3	3	3
Number Of Reverse Gears	3	3	3	3
Max Speed - Forward	6.5 mph	6.5 mph	5.9 mph	5.4 mph
Max Speed - Reverse	8 mph	8 mph	7 mph	5.4 mph

Hydraulic System
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Pump Type	closed center load sensing	closed center load sensing	CLSS	Plunger-type
Relief Valve Pressure	2,988 psi	2,988 psi	2,987 psi	2,990 psi

Specification	D61PX-15	DP61PX-15EO
Pump Flow Capacity	51.6 gpm	14.5 gpm

Standard Blade
Specification	D61EX-12	D61PX-12	D61PX-15
Blade width	10.8 ft	12.7 ft	12.7 ft
Blade height	47.3 in	45.7 in	45.7 in
Capacity	4.5 yd3	5 yd3	5 yd3
Cutting Depth	22.7 in	22.7 in	22.9 in

Specification	D61EX-12	D61PX-12
Blade Angle (Both Directions)	25 degrees	25 degrees

Variants — Source comparison annotation
Source guide	Differing-field count reported
D61EX-12 to DP61PX-15EO	37

Ratios
Figure	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Engine horsepower per 1,000 lb of weight	4.1	3.9	4.1	4.9
Fuel tank per engine horsepower	0.55 gal	0.55 gal	0.61 gal	0.61 gal

Figure	D61PX-15	DP61PX-15EO
Pump flow per engine horsepower	0.31 gpm	0.09 gpm

D61EX-12 to DP61PX-15EO: owner reports

Related account: “Fault code, overheating and low transmission pressure”: D51PX-22 to D61PX-23.

D61EX-12 to DP61PX-15EO: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	crawler dozer	Komatsu and the D61EX-12, D61PX-12, D61PX-15. That is too few titles to say what owners mostly ask about, so the most recent are listed instead	11

Komatsu D61 Ex 12 (Heavy Equipment Forums, 2026-07-20)
Komatsu D61 Px15 Overheating (Heavy Equipment Forums, 2024-09-08)
Komatsu D61px 12 Wont Move Low Trans Pressure (Heavy Equipment Forums, 2024-06-20)
Komatsu D61px 15 Galeo Questions (Heavy Equipment Forums, 2023-07-16)

Used market for the D61EX-12 to DP61PX-15EO — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Komatsu crawler dozer	13

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
D61EX-12	5	2000 to 2006	$9,109	$69,500	$40,000	4,281
D61PX-12	3	2003 to 2004	$30,000	$39,853	$39,706	7,358
D61PX-15	5	2004 to 2007	$40,000	$54,000	$45,432	7,752

D61EX-12 to DP61PX-15EO: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Komatsu together with the crawler dozer D61EX-12, D61PX-12, D61PX-15, DP61PX-15EO	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Komatsu D61EX-12 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D61PX-12 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D61PX-15 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu DP61PX-15EO — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Komatsu D61EX-12 to DP61PX-15EO — Heavy Equipment Forums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Komatsu D61EX-12 — MachineryTrader. 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.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	11
Forum indexes	Heavy Equipment Forums
Search wording	the D61EX-12 to DP61PX-15EO crawler dozer
Latest title quoted by the reference	Komatsu D61 Ex 12

Komatsu D61EX-12 to DP61PX-15EO: Configuration records

D61EX-12

Specification	Source figure
Dimensions and weight
Length W/ Blade	17.85 ft
Width Over Tracks	6.24 ft
Height To Top Of Cab	10.22 ft
Undercarriage
Track Gauge	6.24 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	8
Number Of Shoes Per Side	46
Ground Pressure	6.33 psi
Ground Contact Area	5,896 in2
Engine
Number Of Cylinders	6
Engine Model	S6D114E-1
Power Measured @	1,850 rpm
Displacement	506.5 cu in
Net Power	152 hp
Aspiration	Turbocharged
Max Torque	578.3 lb-ft
Torque Measured @	1,300 rpm
Operational
Operating Weight	37,258 lb
Fuel Capacity	83.3 gal
Cooling System Fluid Capacity	11.7 gal
Engine Oil Capacity	5.1 gal
Hydraulic Fluid Capacity	12.7 gal
Powertrain Fluid Capacity	11.7 gal
Final Drives Fluid Capacity	7.6 gal
Operating Voltage	24 V
Alternator Supplied Amperage	35 amps
Transmission and speeds
Transmission Type	TORQFLOW
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	6.5 mph
Max Speed - Reverse	8 mph
Standard Blade
Blade width	10.8 ft
Blade height	47.3 in
Cutting Depth	22.7 in
Capacity	4.5 yd3
Blade Angle (Both Directions)	25 degrees
Hydraulic System
Pump Type	closed center load sensing
Relief Valve Pressure	2,988 psi
Additional specifications
Length Of Track On Ground	10.41 ft

Source

D61PX-12

Specification	Source figure
Dimensions and weight
Length W/ Blade	17.85 ft
Width Over Tracks	7.03 ft
Height To Top Of Cab	10.22 ft
Undercarriage
Track Gauge	7.03 ft
Standard Shoe Size	33.86 in
Number Of Track Rollers Per Side	8
Number Of Shoes Per Side	46
Ground Pressure	4.65 psi
Ground Contact Area	8,451 in2
Engine
Number Of Cylinders	6
Engine Model	S6D114E-1
Power Measured @	1,850 rpm
Displacement	506.5 cu in
Net Power	152 hp
Max Torque	578.3 lb-ft
Torque Measured @	1,300 rpm
Operational
Operating Weight	39,242 lb
Fuel Capacity	83.3 gal
Cooling System Fluid Capacity	11.7 gal
Engine Oil Capacity	5.1 gal
Hydraulic Fluid Capacity	12.7 gal
Powertrain Fluid Capacity	11.7 gal
Final Drives Fluid Capacity	7.6 gal
Operating Voltage	24 V
Alternator Supplied Amperage	35 amps
Transmission and speeds
Transmission Type	TORQFLOW
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	6.5 mph
Max Speed - Reverse	8 mph
Standard Blade
Blade width	12.7 ft
Blade height	45.7 in
Cutting Depth	22.7 in
Capacity	5 yd3
Blade Angle (Both Directions)	25 degrees
Hydraulic System
Pump Type	closed center load sensing
Relief Valve Pressure	2,988 psi
Additional specifications
Length Of Track On Ground	10.41 ft

Source

D61PX-15

Specification	Source figure
Dimensions and weight
Length W/ Blade	17.85 ft
Height To Top Of Cab	10.34 ft
Ground Clearance	1.3 ft
Undercarriage
Track Gauge	7.03 ft
Standard Shoe Size	33.86 in
Number Of Track Rollers Per Side	8
Number Of Shoes Per Side	46
Ground Contact Area	8,451 in2
Engine
Number Of Cylinders	6
Engine Model	SAA6D107E-1
Gross Power	170.4 hp
Power Measured @	1,850 rpm
Displacement	504.7 cu in
Net Power	167.7 hp
Aspiration	turbocharged
Operational
Operating Weight	40,697 lb
Fuel Capacity	103.1 gal
Cooling System Fluid Capacity	11.9 gal
Engine Oil Capacity	5.1 gal
Hydraulic Fluid Capacity	14.6 gal
Final Drives Fluid Capacity	7.6 gal
Transmission and speeds
Transmission Type	TORQFLOW planetary gear
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	5.9 mph
Max Speed - Reverse	7 mph
Standard Blade
Blade width	12.7 ft
Blade height	45.7 in
Cutting Depth	22.9 in
Capacity	5 yd3
Hydraulic System
Pump Type	CLSS
Relief Valve Pressure	2,987 psi
Pump Flow Capacity	51.6 gpm
Additional specifications
Length Of Track On Ground	10.41 ft

Source

DP61PX-15EO

Specification	Source figure
Undercarriage
Track Gauge	7 ft
Standard Shoe Size	34 in
Number Of Track Rollers Per Side	8
Track Pitch	10.5 in
Number Of Shoes Per Side	46
Ground Pressure	4.83 psi
Ground Contact Area	8,451 in2
Engine
Number Of Cylinders	6
Engine Model	SAA6D107E-1
Gross Power	170 hp
Power Measured @	1,850 rpm
Displacement	6.7 cu in
Net Power	168 hp
Operational
Operating Weight	34,440 lb
Fuel Capacity	103 gal
Cooling System Fluid Capacity	8.5 gal
Engine Oil Capacity	7.7 gal
Hydraulic Fluid Capacity	0.3 gal
Powertrain Fluid Capacity	78.2 gal
Final Drives Fluid Capacity	7.5 gal
Transmission and speeds
Transmission Type	TORQFLOW
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	5.4 mph
Max Speed - Reverse	5.4 mph
Hydraulic System
Pump Type	Plunger-type
Relief Valve Pressure	2,990 psi
Pump Flow Capacity	14.5 gpm

Source

Compare Komatsu D61EX-12, D61PX-12, D61PX-15, DP61PX-15EO

Undercarriage
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Track Gauge	6.24 ft	7.03 ft	7.03 ft	7 ft
Standard Shoe Size	23.63 in	33.86 in	33.86 in	34 in
Ground Contact Area	5,896 in2	8,451 in2	8,451 in2	8,451 in2
Number Of Shoes Per Side	46	46	46	46
Number Of Track Rollers Per Side	8	8	8	8

Engine
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Number Of Cylinders	6	6	6	6
Engine Model	S6D114E-1	S6D114E-1	SAA6D107E-1	SAA6D107E-1
Net Power	152 hp	152 hp	167.7 hp	168 hp
Power Measured @	1,850 rpm	1,850 rpm	1,850 rpm	1,850 rpm
Displacement	506.5 cu in	506.5 cu in	504.7 cu in	6.7 cu in

Operational
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Operating Weight	37,258 lb	39,242 lb	40,697 lb	34,440 lb
Fuel Capacity	83.3 gal	83.3 gal	103.1 gal	103 gal
Cooling System Fluid Capacity	11.7 gal	11.7 gal	11.9 gal	8.5 gal
Engine Oil Capacity	5.1 gal	5.1 gal	5.1 gal	7.7 gal
Hydraulic Fluid Capacity	12.7 gal	12.7 gal	14.6 gal	0.3 gal
Final Drives Fluid Capacity	7.6 gal	7.6 gal	7.6 gal	7.5 gal

Transmission and speeds
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Transmission Type	TORQFLOW	TORQFLOW	TORQFLOW planetary gear	TORQFLOW
Number Of Forward Gears	3	3	3	3
Number Of Reverse Gears	3	3	3	3
Max Speed - Forward	6.5 mph	6.5 mph	5.9 mph	5.4 mph
Max Speed - Reverse	8 mph	8 mph	7 mph	5.4 mph

Hydraulic System
Specification	D61EX-12	D61PX-12	D61PX-15	DP61PX-15EO
Pump Type	closed center load sensing	closed center load sensing	CLSS	Plunger-type
Relief Valve Pressure	2,988 psi	2,988 psi	2,987 psi	2,990 psi

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Komatsu D61EX-12 to DP61PX-15EO specifications

D61EX-12 to DP61PX-15EO: owner reports

Sources for this page

Komatsu D61EX-12 to DP61PX-15EO: Configuration records