Machine models

Komatsu WA320-3 CUSTOM specifications

Entries in this reference
Listing-entry count
1

Short answer

Komatsu WA320-3 CUSTOM: wheel loader.

Selected configuration figures
Configuration	Documented field and quantity
WA320-3 CUSTOM	Gross Power 152.9 hp Operating Weight 29,432 lb

WA320-3 CUSTOM specification matrix — Bucket
Specification	WA320-3 CUSTOM
Dump Clearance At Max Raise	9.36 ft
Bucket Capacity - Struck	3.01 yd3
Bucket Width	8.99 ft
Bucket Capacity - Heaped	3.54 yd3

Dimensions and weight
Specification	WA320-3 CUSTOM
Ground Clearance	1.32 ft
Length With Bucket On Ground	24.32 ft
Width Over Tires	8.49 ft
Height To Top Of Cab	10.95 ft
Wheelbase	9.95 ft
Hinge Pin - Max Height	12.75 ft
Reach At Max Lift And Dump	3.4 ft

Engine
Specification	WA320-3 CUSTOM
Number Of Cylinders	6
Engine Model	SA6D102E
Gross Power	152.9 hp
Power Measured @	2,350 rpm
Displacement	358.9 cu in

Operational
Specification	WA320-3 CUSTOM
Operating Weight	29,432 lb
Fuel Capacity	52.9 gal
Turning Radius	20 ft
Tire Size	20.5-25

Transmission and speeds
Specification	WA320-3 CUSTOM
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	21.2 mph
Max Speed - Reverse	21.8 mph

Ratios
Figure	WA320-3 CUSTOM
Engine horsepower per 1,000 lb of weight	5.2
Fuel tank per engine horsepower	0.35 gal

Reference directory classification
Equipment group	wheel loader

Where the WA320-3 CUSTOM ranks in Komatsu's list — Scope of the captured comparison
Brand	Equipment group	Compared entry	Sort order
Komatsu	wheel loader	WA320-3 CUSTOM	Descending quantity; 1 is largest

Figure	WA320-3 CUSTOM	Rank	Lowest in line	Highest in line
Engine power	152.9 hp	18 of 33	29.0 hp	1,765.0 hp
Listed weight	29,432 lb	17 of 29	8,433 lb	477,080 lb
Fuel capacity	52.9 gal	14 of 29	11.9 gal	1,347.0 gal
Horsepower per 1,000 lb	5.2 hp	13 of 29	2.4 hp	5.8 hp

The WA320-3 CUSTOM beside its neighbours

Base version	WA320-3 CUSTOM	WA380-8
Engine power	152.9 hp	191 hp
Weight	29,432 lb	40,686 lb
Pump flow	WA380-8: 36.2 gpm
Fuel capacity	52.9 gal	79.3 gal
Wheelbase	9.95 ft	10.83 ft

WA320-3 CUSTOM: owner reports

Sources: 3 forum discussions about the Komatsu WA320 wheel loaders (WA320-3, WA320-7); heavyequipmentforums.com.

Komatsu: Transmission slipping and overheating.

WA320-3 CUSTOM: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	wheel loader	Komatsu and the WA320 3 line that the WA320-3 CUSTOM 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 instead	3

Komatsu Wa320 3 (Heavy Equipment Forums, 2023-07-18)
Komatsu Wa 320 3 Error Code E03 (Heavy Equipment Forums, 2018-08-29)
Komatsu Wa 320 3 (Heavy Equipment Forums, 2014-04-02)

Used market for the WA320-3 CUSTOM — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Komatsu wheel loader	5

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
WA320-3 CUSTOM	5	2000 to 2022	$23,000	$23,926	$23,463	None shown

WA320-3 CUSTOM: 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 wheel loader WA320-3 CUSTOM	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Komatsu WA320-3 CUSTOM — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Komatsu WA320-3 CUSTOM — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: Forum threads read for the Komatsu WA320 wheel loaders (WA320-3, WA320-7) — Heavyequipmentforums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Komatsu WA320-3 — 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	3
Forum indexes	Heavy Equipment Forums
Search wording	the WA320-3 CUSTOM wheel loader
Latest title quoted by the reference	Komatsu Wa320 3

Komatsu WA320-3 CUSTOM: Configuration records

WA320-3 CUSTOM

Specification	Source figure
Bucket
Dump Clearance At Max Raise	9.36 ft
Bucket Capacity - Heaped	3.54 yd3
Bucket Capacity - Struck	3.01 yd3
Dimensions and weight
Ground Clearance	1.32 ft
Height To Top Of Cab	10.95 ft
Wheelbase	9.95 ft
Length With Bucket On Ground	24.32 ft
Width Over Tires	8.49 ft
Hinge Pin - Max Height	12.75 ft
Reach At Max Lift And Dump	3.4 ft
Engine
Engine Model	SA6D102E
Displacement	358.9 cu in
Power Measured @	2,350 rpm
Gross Power	152.9 hp
Operational
Fuel Capacity	52.9 gal
Turning Radius	20 ft
Tire Size	20.5-25
Transmission and speeds
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	21.2 mph
Max Speed - Reverse	21.8 mph
Additional specifications
Number Of Cylinders	6
Operating Weight	29,432 lb
Bucket Width	8.99 ft

More in Komatsu: WA200-6–WA250-6, WA270-7/WA320-7/WA380-7 specs, WA30-1.