Machine models

Komatsu D31A-16 to D37P-5 specifications

Entries in this reference
Listing-entry count
10

Short answer

Komatsu D31A-16 to D37P-5: crawler dozers.

Selected configuration figures
Configuration	Documented field and quantity
D31A-16	Gross Power 63 hp Operating Weight 11,420 lb
D31P-16	Gross Power 63 hp Operating Weight 14,771 lb
D31P-16A	Gross Power 63 hp Operating Weight 14,881 lb
D31P-17	Gross Power 68 hp Operating Weight 14,771 lb
D31P-20	Net Power 70 hp Operating Weight 13,658 lb
D31P-20E	Gross Power 71 hp Operating Weight 15,080 lb
D31PL-16	Gross Power 63 hp Operating Weight 15,543 lb
D37A-5	Gross Power 81 hp Operating Weight 14,352 lb
D37E-5	Net Power 70 hp Operating Weight 12,015 lb
D37P-5	Net Power 80 hp Operating Weight 12,015 lb

D31A-16 to D37P-5 specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Komatsu	D31A-16 to D37P-5	10	D31A-16, D31P-16, D31P-16A, D31P-17, D31P-20, D31P-20E, and 4 more

Dimensions and weight
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5
Width Over Tracks	5.88 ft	6.73 ft	7.39 ft	6.73 ft	6.73 ft	9.68 ft	6.07 ft
Length Of Track On Ground	6.17 ft	7.17 ft	7.17 ft	7.17 ft	7.17 ft	7.17 ft	7.17 ft

Specification	D31A-16	D31P-16	D31P-17	D31P-20E	D31PL-16
Length W/O Blade	9.31 ft	9.95 ft	9.91 ft	9.95 ft	9.95 ft

Specification	D31P-16	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5
Length W/ Blade	12.64 ft	12.92 ft	12.62 ft	12.62 ft	12.72 ft	12.96 ft
Height To Top Of Cab	8.7 ft	8.6 ft	8.88 ft	8.98 ft	8.6 ft	8.91 ft
Ground Clearance	1.27 ft	1.27 ft	1.25 ft	1.25 ft	1.27 ft	1.04 ft

Undercarriage
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Track Gauge	4.76 ft	4.76 ft	5.42 ft	4.76 ft	4.76 ft	4.76 ft	6.24 ft	4.76 ft	4.76 ft	4.76 ft
Standard Shoe Size	13 in	23.63 in	23.63 in	23.63 in	23.63 in	23.63 in	41.34 in	15.75 in	13 in	13 in
Number Of Track Rollers Per Side	5	6	6	6	6	6	6	6	6	6

Specification	D31A-16	D31P-16	D31P-17	D31P-20	D37E-5	D37P-5
Ground Pressure	5.97 psi	3.12 psi	3.12 psi	3.28 psi	5.4 psi	5.4 psi

Specification	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5
Track Pitch	6.07 in	6.07 in	6.07 in	6.07 in	6.07 in

Specification	D31P-16A	D31P-17	D31P-20	D31PL-16	D37A-5	D37E-5	D37P-5
Number Of Shoes Per Side	41	41	41	41	41	41	41

Specification	D31P-20	D37E-5	D37P-5
Ground Contact Area	4,064 in2	2,235 in2	2,235 in2

Specification	D37A-5
Number Of Carrier Rollers Per Side	1

Engine
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Engine Model	4D105-3	4D 105-3	4D105-3	4D105-5	S4D102E	S4D102E-1-A	4D105-3	6D95L-1	S4D102E	S4D102E
Displacement	264 cu in	264.3 cu in	264.3 cu in	264.3 cu in	238 cu in	239.3 cu in	264.3 cu in	298.5 cu in	239.3 cu in	239.3 cu in

Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5
Gross Power	63 hp	63 hp	63 hp	68 hp	71 hp	63 hp	81 hp

Specification	D31P-16	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5	D37P-5
Number Of Cylinders	4	4	4	4	4	6	4

Specification	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Power Measured @	2,350 rpm	2,350 rpm	2,350 rpm	2,350 rpm	2,350 rpm	2,350 rpm	2,500 rpm	2,350 rpm	2,500 rpm

Specification	D31P-20	D37E-5	D37P-5
Net Power	70 hp	70 hp	80 hp
Aspiration	Turbocharged	Turbocharged	Turbocharged

Operational
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Operating Weight	11,420 lb	14,771 lb	14,881 lb	14,771 lb	13,658 lb	15,080 lb	15,543 lb	14,352 lb	12,015 lb	12,015 lb

Specification	D31A-16	D31P-16	D31P-17	D31P-20	D37E-5	D37P-5
Fuel Capacity	30.4 gal	30.4 gal	30.4 gal	30.4 gal	30.4 gal	30.4 gal
Cooling System Fluid Capacity	5.9 gal	5.9 gal	5.9 gal	5.9 gal	5.9 gal	5.9 gal

Specification	D31P-20	D37E-5	D37P-5
Engine Oil Capacity	3.7 gal	3.2 gal	3.2 gal
Powertrain Fluid Capacity	3.5 gal	4.5 gal	4.5 gal
Final Drives Fluid Capacity	2.6 gal	3.2 gal	3.2 gal

Transmission and speeds
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Transmission Type	planetary gear	HS	HS	HS	Hydroshift	HS	HS	DPS	Hydroshift	hydroshift
Number Of Forward Gears	3	3	3	3	3	3	3	3	3	3
Number Of Reverse Gears	3	3	3	3	3	3	3	3	3	3

Specification	D31A-16	D31P-16	D31P-17	D31P-20	D37E-5	D37P-5
Max Speed - Forward	4.1 mph	4.1 mph	4.1 mph	4.1 mph	4.3 mph	4.3 mph
Max Speed - Reverse	4.5 mph	4.5 mph	4.5 mph	4.5 mph	4.7 mph	4.7 mph

Standard Blade
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20E	D31PL-16	D37A-5
Blade width	8 ft	8.2 ft	9.4 ft	8 ft	8 ft	11.1 ft	8 ft
Blade height	29.4 in	30.8 in	29.4 in	31.2 in	31.2 in	21.5 in	37.1 in

Specification	D31A-16	D31P-16	D31P-17
Cutting Depth	14.4 in	13.8 in	13.2 in

Specification	D31P-16	D31P-17
Capacity	2 yd3	2 yd3

Hydraulic System
Specification	D31P-20	D37E-5	D37P-5
Pump Type	gear type	gear type	gear type
Relief Valve Pressure	2,495 psi	2,495 psi	2.5 psi

Variants — Source comparison annotation
Source guide	Differing-field count reported
D31A-16 to D37P-5	36

Ratios
Figure	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Engine horsepower per 1,000 lb of weight	5.5	4.3	4.2	4.6	5.1	4.7	4.1	5.6	5.8	6.7

Figure	D31A-16	D31P-16	D31P-17	D31P-20	D37E-5	D37P-5
Fuel tank per engine horsepower	0.48 gal	0.48 gal	0.45 gal	0.43 gal	0.43 gal	0.38 gal

D31A-16 to D37P-5: owner reports

Sources: 3 forum discussions about the Komatsu D31 dozers (D31A, D31P); heavyequipmentforums.com.

Komatsu: Steering clutches and transmission on project machines.

Sources: 3 forum discussions about the Komatsu D37 and D375 dozers; heavyequipmentforums.com.

Komatsu: No-start, no-move and floating seals.

D31A-16 to D37P-5: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	crawler dozer	Komatsu and the D31P, D31, D37 line that the D31A-16, D31P-16, D31P-16A, D31P-17 belongs to (no title names the exact model)	145

Topics named by those titles
Title topic	Titles
transmission and drive	11
hydraulics	7
brakes and steering	5

Topic in the title	Threads	Share of matching threads
transmission and drive	11	8%
hydraulics	7	5%
brakes and steering	5	3%
starting and cranking	4	3%
fuel system	3	2%

Any Information On A Komatsu Winch Coupled To A Komatsu D31 Dozer Any Informationat All (Heavy Equipment Forums, 2026-08-23)
Komatsu D31a 16 (Heavy Equipment Forums, 2026-07-07)
Komatsu D31p 18 (Heavy Equipment Forums, 2026-04-20)
Komatsu Dozer D37 Blade Control (Heavy Equipment Forums, 2026-02-03)

Used market for the D31A-16 to D37P-5 — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Komatsu crawler dozer	2

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
D31P-16	1	Not stated	None shown	None shown	None shown	None shown
D31P-17	1	1992	$15,750	$15,750	$15,750	None shown

D31A-16 to D37P-5: 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 D31A-16, D31P-16, D31P-16A, D31P-17	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Komatsu D31A-16 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31P-16 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31P-16A — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31P-17 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31P-20 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31P-20E — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D31PL-16 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D37A-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D37E-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu D37P-5 — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Komatsu D31A-16 to D37P-5 — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Komatsu D31 dozers (D31A, D31P) — Heavyequipmentforums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Komatsu D31P-16 — 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.

Komatsu D31A-16 to D37P-5: Configuration records

D31A-16

Specification	Source figure
Dimensions and weight
Width Over Tracks	5.88 ft
Length W/O Blade	9.31 ft
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	13 in
Number Of Track Rollers Per Side	5
Ground Pressure	5.97 psi
Engine
Engine Model	4D105-3
Gross Power	63 hp
Displacement	264 cu in
Operational
Operating Weight	11,420 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Transmission and speeds
Transmission Type	planetary gear
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.1 mph
Max Speed - Reverse	4.5 mph
Standard Blade
Blade width	8 ft
Blade height	29.4 in
Cutting Depth	14.4 in
Additional specifications
Length Of Track On Ground	6.17 ft

Source

D31P-16

Specification	Source figure
Dimensions and weight
Width Over Tracks	6.73 ft
Length W/O Blade	9.95 ft
Length W/ Blade	12.64 ft
Height To Top Of Cab	8.7 ft
Ground Clearance	1.27 ft
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	6
Ground Pressure	3.12 psi
Engine
Engine Model	4D 105-3
Gross Power	63 hp
Displacement	264.3 cu in
Number Of Cylinders	4
Power Measured @	2,350 rpm
Operational
Operating Weight	14,771 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Transmission and speeds
Transmission Type	HS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.1 mph
Max Speed - Reverse	4.5 mph
Standard Blade
Blade width	8.2 ft
Blade height	30.8 in
Cutting Depth	13.8 in
Capacity	2 yd3
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D31P-16A

Specification	Source figure
Dimensions and weight
Width Over Tracks	7.39 ft
Length W/ Blade	12.92 ft
Height To Top Of Cab	8.6 ft
Ground Clearance	1.27 ft
Undercarriage
Track Gauge	5.42 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	6
Track Pitch	6.07 in
Number Of Shoes Per Side	41
Engine
Engine Model	4D105-3
Gross Power	63 hp
Displacement	264.3 cu in
Number Of Cylinders	4
Power Measured @	2,350 rpm
Operational
Operating Weight	14,881 lb
Transmission and speeds
Transmission Type	HS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Standard Blade
Blade width	9.4 ft
Blade height	29.4 in
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D31P-17

Specification	Source figure
Dimensions and weight
Width Over Tracks	6.73 ft
Length W/O Blade	9.91 ft
Length W/ Blade	12.62 ft
Height To Top Of Cab	8.88 ft
Ground Clearance	1.25 ft
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	6
Ground Pressure	3.12 psi
Track Pitch	6.07 in
Number Of Shoes Per Side	41
Engine
Engine Model	4D105-5
Gross Power	68 hp
Displacement	264.3 cu in
Number Of Cylinders	4
Power Measured @	2,350 rpm
Operational
Operating Weight	14,771 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Transmission and speeds
Transmission Type	HS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.1 mph
Max Speed - Reverse	4.5 mph
Standard Blade
Blade width	8 ft
Blade height	31.2 in
Cutting Depth	13.2 in
Capacity	2 yd3
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D31P-20

Specification	Source figure
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	6
Ground Pressure	3.28 psi
Number Of Shoes Per Side	41
Ground Contact Area	4,064 in2
Engine
Engine Model	S4D102E
Displacement	238 cu in
Power Measured @	2,350 rpm
Net Power	70 hp
Aspiration	Turbocharged
Operational
Operating Weight	13,658 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Engine Oil Capacity	3.7 gal
Powertrain Fluid Capacity	3.5 gal
Final Drives Fluid Capacity	2.6 gal
Transmission and speeds
Transmission Type	Hydroshift
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.1 mph
Max Speed - Reverse	4.5 mph
Hydraulic System
Pump Type	gear type
Relief Valve Pressure	2,495 psi

Source

D31P-20E

Specification	Source figure
Dimensions and weight
Width Over Tracks	6.73 ft
Length W/O Blade	9.95 ft
Length W/ Blade	12.62 ft
Height To Top Of Cab	8.98 ft
Ground Clearance	1.25 ft
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	23.63 in
Number Of Track Rollers Per Side	6
Track Pitch	6.07 in
Engine
Engine Model	S4D102E-1-A
Gross Power	71 hp
Displacement	239.3 cu in
Number Of Cylinders	4
Power Measured @	2,350 rpm
Operational
Operating Weight	15,080 lb
Transmission and speeds
Transmission Type	HS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Standard Blade
Blade width	8 ft
Blade height	31.2 in
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D31PL-16

Specification	Source figure
Dimensions and weight
Width Over Tracks	9.68 ft
Length W/O Blade	9.95 ft
Length W/ Blade	12.72 ft
Height To Top Of Cab	8.6 ft
Ground Clearance	1.27 ft
Undercarriage
Track Gauge	6.24 ft
Standard Shoe Size	41.34 in
Number Of Track Rollers Per Side	6
Track Pitch	6.07 in
Number Of Shoes Per Side	41
Engine
Engine Model	4D105-3
Gross Power	63 hp
Displacement	264.3 cu in
Number Of Cylinders	4
Power Measured @	2,350 rpm
Operational
Operating Weight	15,543 lb
Transmission and speeds
Transmission Type	HS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Standard Blade
Blade width	11.1 ft
Blade height	21.5 in
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D37A-5

Specification	Source figure
Dimensions and weight
Width Over Tracks	6.07 ft
Length W/ Blade	12.96 ft
Height To Top Of Cab	8.91 ft
Ground Clearance	1.04 ft
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	15.75 in
Number Of Track Rollers Per Side	6
Track Pitch	6.07 in
Number Of Shoes Per Side	41
Number Of Carrier Rollers Per Side	1
Engine
Engine Model	6D95L-1
Gross Power	81 hp
Displacement	298.5 cu in
Number Of Cylinders	6
Power Measured @	2,500 rpm
Operational
Operating Weight	14,352 lb
Transmission and speeds
Transmission Type	DPS
Number Of Forward Gears	3
Number Of Reverse Gears	3
Standard Blade
Blade width	8 ft
Blade height	37.1 in
Additional specifications
Length Of Track On Ground	7.17 ft

Source

D37E-5

Specification	Source figure
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	13 in
Number Of Track Rollers Per Side	6
Ground Pressure	5.4 psi
Number Of Shoes Per Side	41
Ground Contact Area	2,235 in2
Engine
Engine Model	S4D102E
Displacement	239.3 cu in
Power Measured @	2,350 rpm
Net Power	70 hp
Aspiration	Turbocharged
Operational
Operating Weight	12,015 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Engine Oil Capacity	3.2 gal
Powertrain Fluid Capacity	4.5 gal
Final Drives Fluid Capacity	3.2 gal
Transmission and speeds
Transmission Type	Hydroshift
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.3 mph
Max Speed - Reverse	4.7 mph
Hydraulic System
Pump Type	gear type
Relief Valve Pressure	2,495 psi

Source

D37P-5

Specification	Source figure
Undercarriage
Track Gauge	4.76 ft
Standard Shoe Size	13 in
Number Of Track Rollers Per Side	6
Ground Pressure	5.4 psi
Number Of Shoes Per Side	41
Ground Contact Area	2,235 in2
Engine
Engine Model	S4D102E
Displacement	239.3 cu in
Number Of Cylinders	4
Power Measured @	2,500 rpm
Net Power	80 hp
Aspiration	Turbocharged
Operational
Operating Weight	12,015 lb
Fuel Capacity	30.4 gal
Cooling System Fluid Capacity	5.9 gal
Engine Oil Capacity	3.2 gal
Powertrain Fluid Capacity	4.5 gal
Final Drives Fluid Capacity	3.2 gal
Transmission and speeds
Transmission Type	hydroshift
Number Of Forward Gears	3
Number Of Reverse Gears	3
Max Speed - Forward	4.3 mph
Max Speed - Reverse	4.7 mph
Hydraulic System
Pump Type	gear type
Relief Valve Pressure	2.5 psi

Source

Compare Komatsu D31A-16, D31P-16, D31P-16A, D31P-17, D31P-20, D31P-20E, D31PL-16, D37A-5, D37E-5, D37P-5

Undercarriage
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Track Gauge	4.76 ft	4.76 ft	5.42 ft	4.76 ft	4.76 ft	4.76 ft	6.24 ft	4.76 ft	4.76 ft	4.76 ft
Standard Shoe Size	13 in	23.63 in	23.63 in	23.63 in	23.63 in	23.63 in	41.34 in	15.75 in	13 in	13 in
Number Of Track Rollers Per Side	5	6	6	6	6	6	6	6	6	6

Engine
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Engine Model	4D105-3	4D 105-3	4D105-3	4D105-5	S4D102E	S4D102E-1-A	4D105-3	6D95L-1	S4D102E	S4D102E
Displacement	264 cu in	264.3 cu in	264.3 cu in	264.3 cu in	238 cu in	239.3 cu in	264.3 cu in	298.5 cu in	239.3 cu in	239.3 cu in

Operational
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Operating Weight	11,420 lb	14,771 lb	14,881 lb	14,771 lb	13,658 lb	15,080 lb	15,543 lb	14,352 lb	12,015 lb	12,015 lb

Transmission and speeds
Specification	D31A-16	D31P-16	D31P-16A	D31P-17	D31P-20	D31P-20E	D31PL-16	D37A-5	D37E-5	D37P-5
Transmission Type	planetary gear	HS	HS	HS	Hydroshift	HS	HS	DPS	Hydroshift	hydroshift
Number Of Forward Gears	3	3	3	3	3	3	3	3	3	3
Number Of Reverse Gears	3	3	3	3	3	3	3	3	3	3

More in Komatsu: D31A-17/D31Q-17/D31S-17 specs, D575A-2, D31E/S/Q-20: blade/shovel/serial differences.

Komatsu D31A-16 to D37P-5 specifications

D31A-16 to D37P-5: owner reports

Sources for this page

Komatsu D31A-16 to D37P-5: Configuration records