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Kubota Z422KW-54

Zero-Turn mower · Model Z422KW-54 · Prosumer-duty · Gas

Kubota Australia doesn’t publish a recommended retail price for this model online — it’s dealer quote only. The Kubota Australia product page is the place to start.

Sold in Australia — listed on kubota.com.au, checked 20 Oct 2026.

The Kubota Z422KW-54 is a prosumer-grade gas zero-turn mower, built for large residential properties and acreage, with a 54-inch deck and a 726cc engine making 24 hp. It weighs 881.8 lb (400 kg).

At a glance

Power Source
gas
Cutting Width
54 in (1372 mm)
Displacement
44.3 ci (726 cc)
Engine Power
24 hp
Transmission
2-HST w/Gear reduction
Ground Speed
9.9 mph
Compare this mower: Pick another Kubota zero-turn or pick from every zero-turn mower sold in Australia   or quick compare: vs Z232KW-42 · vs Z242KH-48 · vs Z242KW-48
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Deck 1,372 mm (54 in) · 24 hp, 726 cc
    Fuel capacity 30.2 L (8 gal) (this model: 25.7 L (6.8 gal))Weight 437.7 kg (965 lbs) (this model: 400 kg (882 lbs))
    Why: Same class: zero-turn · Same 54 in deck · Gas engine, like this model · Prosumer-duty, like this model · 24 hp (this model: 24 hp) · By John Deere, a different maker
    Compare with the Z422KW-54 ›
  • Deck 1,372 mm (54 in) · 24 hp, 726 cc
    Fuel capacity 18.9 L (5 gal) (this model: 25.7 L (6.8 gal))Ground speed 8.4 mph (this model: 9.9 mph)
    Why: Same class: zero-turn · Same 54 in deck · Gas engine, like this model · Prosumer-duty, like this model · 24 hp (this model: 24 hp) · By Toro, a different maker
    Compare with the Z422KW-54 ›
  • Deck 1,372 mm (54 in) · 23 hp, 726 cc · RRP A$11,935
    Ground speed 7 mph (this model: 9.9 mph)Weight 338 kg (745 lbs) (this model: 400 kg (882 lbs))
    Why: Same class: zero-turn · Same 54 in deck · Gas engine, like this model · Prosumer-duty, like this model · 23 hp (this model: 24 hp) · By Bad Boy Mowers, a different maker
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  • Deck 1,372 mm (54 in) · Kawasaki FR Series, 24 hp, 725.9 cc · RRP A$11,499
    Fuel capacity 13.2 L (3.5 gal) (this model: 25.7 L (6.8 gal))Ground speed 6.5 mph (this model: 9.9 mph)
    Why: Same class: zero-turn · Same 54 in deck · Gas engine, like this model · Prosumer-duty, like this model · 24 hp (this model: 24 hp) · By Husqvarna, a different maker
    Compare with the Z422KW-54 ›
  • Deck 1,372 mm (54 in) · Kawasaki FR730V, 24 hp, 726 cc
    Fuel capacity 16.3 L (4.3 gal) (this model: 25.7 L (6.8 gal))Ground speed 8 mph (this model: 9.9 mph)
    Why: Same class: zero-turn · Same 54 in deck · Gas engine, like this model · Commercial-duty (this model is prosumer) · 24 hp (this model: 24 hp) · By Kubota, a different maker
    Compare with the Z422KW-54 ›

Chosen by stated rules, not opinion: same class, a deck within 6 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.

Engine

Kubota Z422KW-54 engine specifications
Power Sourcegas
Displacement44.3 ci (726 cc)
Engine Power24 hp
Engine MakeKawasaki GH7301V
Cylinders2
Fuel TypePetrol

Deck

Kubota Z422KW-54 deck specifications
Cutting Width54 in (1372 mm)
Blades3
Min Cut Height1.5 in (38 mm)
Max Cut Height5 in (127 mm)
Blade Tip Speed18701 ft/min (5700 m/min)
DischargeSide discharge

Drive

Kubota Z422KW-54 drive specifications
Transmission2-HST w/Gear reduction
Ground Speed9.9 mph
Drive Tire Size24×9.5-14
Drive SystemAdjustable Dual Lever Steering
Reverse Speed5 mph

Dimensions

Kubota Z422KW-54 dimensions specifications
Weight882 lbs (400 kg)
Fuel Capacity6.8 gal (25.7 L)
Length80.9 in (2055 mm)
Width67.3 in (1710 mm)
Height69.8 in (1772 mm)

General

Kubota Z422KW-54 general specifications
Bagger Capacity7.1 bu (250 L)

Similar models

Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the Z422KW-54.

What the parts on this spec sheet mean

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

What the specs work out to

Figures MowerFacts computes from Kubota’s own numbers — not published by the manufacturer.

Mowing time

  • ¼ acre5 min 3 min
  • ½ acre10 min 7 min
  • 1 acre20 min 14 min
  • 2 acres40 min 28 min
  • 5 acres1 h 39 min 1 h 9 min
  • 10 acres3 h 18 min 2 h 18 min

About 20 min per acre at 3.04 acres/hour, mowing at 7.0 mph. The second figure is at the published 9.9 mph top speed (4.34 acres/hour) — faster than anyone really mows. About 20.7 acres per tank.

Weight & hauling

  • Machine weight882 lb
  • + 6×12 trailer900 lb
  • Towed weight1,782 lb
  • single-axle 3,500 lbCarries it, 1,718 lb spare
  • tandem-axle 7,000 lbCarries it, 5,218 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,782 lb.

Gate & trailer fit

  • 32 in gateToo wide
  • 36 in gateToo wide
  • 48 in gateToo wide

Needs at least 68 in of clearance.

Power & run time

  • Power per deck inch0.444 hp/in
  • Run time per tank~6.8 h

Mowing times assume 3.04 acres/hour: deck width x 7.0 mph at 80% efficiency, which allows for overlap, turns and trimming. 7.0 mph is 70% of the 9.9 mph top speed Kubota publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 9.9 mph, shown so you can see it.

Fit uses Kubota's published overall width.

Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Kubota's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.

Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.

Source: Kubota (manufacturer) · archived copy

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