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Kubota ZD1221RL-72R

Commercial mower · Model ZD1221RL-72R · Commercial-duty · Diesel

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 ZD1221RL-72R is a commercial-grade commercial mower, built for daily commercial mowing, with a 72-inch deck and a 1261cc engine making 29.1 hp. It weighs 1774.7 lb (805 kg).

At a glance

Power Source
diesel
Cutting Width
72 in (1829 mm)
Engine Make
Kubota D1305-E3-ZD-3
Displacement
77 ci (1261 cc)
Engine Power
29.1 hp
Transmission
2-HST w/ Gear reduction
Compare this mower: Pick another Kubota commercial or pick from every commercial mower sold in Australia   or quick compare: vs F2890 · vs F3690 · vs F3690-SN
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Deck 1,829 mm (72 in) · Diesel, 24.7 hp, 1266.7 cc
    Engine power 24.7 hp (this model: 29.1 hp)Fuel capacity 43.5 L (11.5 gal) (this model: 49 L (12.9 gal))
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · 24.7 hp (this model: 29.1 hp) · By John Deere, a different maker
    Compare with the ZD1221RL-72R ›
  • Deck 1,829 mm (72 in) · Diesel, Kubota D1305-E3-ZD-3, 29.1 hp, 1261 cc
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · 29.1 hp (this model: 29.1 hp) · Also by Kubota
    Compare with the ZD1221RL-72R ›
  • Deck 1,829 mm (72 in) · Diesel, 1267 cc
    Weight 890.9 kg (1,964 lbs) (this model: 805 kg (1,775 lbs))Max cut height 140 mm (5.5 in) (this model: 127 mm (5 in))
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · By Toro, a different maker
    Compare with the ZD1221RL-72R ›
  • Deck 1,829 mm (72 in) · Diesel, 37.4 hp, 1642 cc
    Weight 1,065.5 kg (2,349 lbs) (this model: 805 kg (1,775 lbs))Displacement 1,642 cc (100.2 ci) (this model: 1,261 cc (77 ci))
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · 37.4 hp (this model: 29.1 hp) · By John Deere, a different maker
    Compare with the ZD1221RL-72R ›
  • Deck 1,829 mm (72 in) · Air cooled, 90-degree V-Twin, normally aspirated petrol engine, 35 hp · RRP A$27,399
    Weight 569 kg (1,254 lbs) (this model: 805 kg (1,775 lbs))Fuel capacity 36 L (9.5 gal) (this model: 49 L (12.9 gal))
    Why: Same class: commercial · Same 72 in deck · Gas engine (this model is diesel) · Commercial-duty, like this model · 35 hp (this model: 29.1 hp) · By Spartan, a different maker
    Compare with the ZD1221RL-72R ›

Chosen by stated rules, not opinion: same class, a deck within 8 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 ZD1221RL-72R engine specifications
Power Sourcediesel
Engine MakeKubota D1305-E3-ZD-3
Displacement77 ci (1261 cc)
Engine Power29.1 hp
Cylinders3
Fuel TypeDiesel

Deck

Kubota ZD1221RL-72R deck specifications
Cutting Width72 in (1829 mm)
Blades3
Deck ConstructionKubota ProDeck
Blade Tip Speed17999 ft/min (5486 m/min)
Max Cut Height5 in (127 mm)
Min Cut Height1 in (25 mm)

Drive

Kubota ZD1221RL-72R drive specifications
Transmission2-HST w/ Gear reduction
Ground Speed10.6 mph
Drive Tire Size26×12.0-16
Drive SystemAdjustable Dual Lever Steering
Reverse Speed5.3 mph

Dimensions

Kubota ZD1221RL-72R dimensions specifications
Weight1775 lbs (805 kg)
Fuel Capacity12.9 gal (49 L)
Length93.7 in (2380 mm)
Width75.2 in (1910 mm)
Height78.7 in (2000 mm)

Similar models

Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the ZD1221RL-72R.

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 acre3 min 2 min
  • ½ acre7 min 5 min
  • 1 acre14 min 10 min
  • 2 acres28 min 20 min
  • 5 acres1 h 10 min 49 min
  • 10 acres2 h 20 min 1 h 38 min

About 14 min per acre at 4.3 acres/hour, mowing at 7.4 mph. The second figure is at the published 10.6 mph top speed (6.14 acres/hour) — faster than anyone really mows. About 55.5 acres per tank.

Weight & hauling

  • Machine weight1,775 lb
  • + 6×12 trailer900 lb
  • Towed weight2,675 lb
  • single-axle 3,500 lbCarries it, 825 lb spare
  • tandem-axle 7,000 lbCarries it, 4,325 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 2,675 lb.

Gate & trailer fit

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

Needs at least 76 in of clearance.

Power & run time

  • Power per deck inch0.404 hp/in
  • Run time per tank~12.9 h

Mowing times assume 4.3 acres/hour: deck width x 7.4 mph at 80% efficiency, which allows for overlap, turns and trimming. 7.4 mph is 70% of the 10.6 mph top speed Kubota publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 10.6 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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