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John Deere Z994R DieselZTrak™ Zero-Turn Mower

Commercial mower · Model Z994R · Commercial-duty · Diesel

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

Sold in Australia — listed on deere.com.au, checked 20 Oct 2026. Listed there as Z994R Diesel (Z994R). Also sold in the United States: US specs and list price.

The John Deere Z994R DieselZTrak Zero-Turn Mower is a commercial-grade commercial mower, built for daily commercial mowing, with a 72-inch deck and a 1266.7cc engine making 24.7 hp. It weighs 1810 lb (821 kg).

At a glance

Power Source
diesel
Cutting Width
72 in (1829 mm)
Displacement
77.3 ci (1266.7 cc)
Engine Power
24.7 hp
Transmission
Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling
Ground Speed
11.4 mph
Compare this mower: Pick another John Deere commercial or pick from every commercial mower sold in Australia   or quick compare: vs Z997M DieselZTrak Zero-Turn Mower · vs Z997R DieselZTrak Zero-Turn Mower · vs Z998R DieselZTrak Zero-Turn Mower
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
  • Kubota ZD1221RL-72R
    Deck 1,829 mm (72 in) · Diesel, Kubota D1305-E3-ZD-3, 29.1 hp, 1261 cc
    Engine power 29.1 hp (this model: 24.7 hp)Fuel capacity 49 L (12.9 gal) (this model: 43.5 L (11.5 gal))
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · 29.1 hp (this model: 24.7 hp) · By Kubota, a different maker
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  • Toro 72 in Z Master 7500-D 25 Hp RD
    Deck 1,829 mm (72 in) · Diesel, 1267 cc
    Weight 890.9 kg (1,964 lbs) (this model: 821 kg (1,810 lbs))
    Why: Same class: commercial · Same 72 in deck · Diesel engine, like this model · Commercial-duty, like this model · By Toro, a different maker
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  • Kubota ZG332LP-72
    Deck 1,829 mm (72 in) · Kubota WG972-G-E3-ZG-1, 32.5 hp, 962 cc
    Engine power 32.5 hp (this model: 24.7 hp)Displacement 962 cc (58.7 ci) (this model: 1,266.7 cc (77.3 ci))
    Why: Same class: commercial · Same 72 in deck · Gas engine (this model is diesel) · Commercial-duty, like this model · 32.5 hp (this model: 24.7 hp) · By Kubota, a different maker
    Compare with the Z994R DieselZTrak Zero-Turn Mower ›
  • Spartan Spartan SRTXD 72 in Zero Turn Mower
    Deck 1,829 mm (72 in) · Air cooled, 90-degree V-Twin, normally aspirated petrol engine, 35 hp · RRP A$27,399
    Engine power 35 hp (this model: 24.7 hp)Weight 569 kg (1,254 lbs) (this model: 821 kg (1,810 lbs))
    Why: Same class: commercial · Same 72 in deck · Gas engine (this model is diesel) · Commercial-duty, like this model · 35 hp (this model: 24.7 hp) · By Spartan, a different maker
    Compare with the Z994R DieselZTrak Zero-Turn Mower ›
  • Husqvarna Z572XS
    Deck 1,830 mm (72 in) · Kawasaki FX Series V-Twin, 38.5 hp, 999 cc · RRP A$30,999
    Engine power 38.5 hp (this model: 24.7 hp)Weight 616.4 kg (1,359 lbs) (this model: 821 kg (1,810 lbs))
    Why: Same class: commercial · 72 in deck, within 8 in of this model's 72 in · Gas engine (this model is diesel) · Commercial-duty, like this model · 38.5 hp (this model: 24.7 hp) · By Husqvarna, a different maker
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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

John Deere Z994R DieselZTrak Zero-Turn Mower engine specifications
Power Sourcediesel
Displacement77.3 ci (1266.7 cc)
Engine Power24.7 hp
Cylinders3
Engine Model3TNV80F
Fuel TypeDiesel or Biodiesel (up to B20)

Deck

John Deere Z994R DieselZTrak Zero-Turn Mower deck specifications
Cutting Width72 in (1829 mm)
Deck Construction7-Iron™ PRO: 7-gauge, 0.179-in. (4.6-mm) one-piece forged steel FastBack™ PRO: 7-gauge, 0.179-in. (4.6-mm) fabricated steel

Drive

John Deere Z994R DieselZTrak Zero-Turn Mower drive specifications
TransmissionDual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling
Ground Speed11.4 mph

Dimensions

John Deere Z994R DieselZTrak Zero-Turn Mower dimensions specifications
Weight1810 lbs (821 kg)
Fuel Capacity11.5 gal (43.5 L)

Similar models

Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the Z994R DieselZTrak Zero-Turn Mower.

72 in Z Master 7500-D 25 Hp RD Toro · 72 in (1829 mm)
72 in Z Master 7500-D 25 Hp SD Toro · 72 in (1829 mm)
ZD1221RL-72R Kubota · 72 in (1829 mm)
ZD1221L-72 Kubota · 72 in (1829 mm)
60 in Z Master 7500-D 25 Hp SD Toro · 60 in (1524 mm)
60 in Z Master 7500-D 25 Hp RD Toro · 60 in (1524 mm)

Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.

What the parts on this spec sheet mean

See all John Deere mowers and specs ›

Spot a wrong spec? Suggest a correction.

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 John Deere’s own numbers — not published by the manufacturer.

Mowing time

  • ¼ acre3 min 2 min
  • ½ acre6 min 5 min
  • 1 acre13 min 9 min
  • 2 acres26 min 18 min
  • 5 acres1 h 5 min 45 min
  • 10 acres2 h 9 min 1 h 30 min

About 13 min per acre at 4.64 acres/hour, mowing at 8.0 mph. The second figure is at the published 11.4 mph top speed (6.63 acres/hour) — faster than anyone really mows. About 53.4 acres per tank.

Weight & hauling

  • Machine weight1,810 lb
  • + 6×12 trailer900 lb
  • Towed weight2,710 lb
  • single-axle 3,500 lbCarries it, 790 lb spare
  • tandem-axle 7,000 lbCarries it, 4,290 lb spare

Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 2,710 lb.

Gate & trailer fit

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

Needs at least 79 in of clearance (estimated).

Power & run time

  • Power per deck inch0.343 hp/in
  • Run time per tank~11.5 h

Mowing times assume 4.64 acres/hour: deck width x 8.0 mph at 80% efficiency, which allows for overlap, turns and trimming. 8.0 mph is 70% of the 11.4 mph top speed John Deere publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 11.4 mph, shown so you can see it.

Fit uses the deck width plus 6 in for the discharge chute, because John Deere doesn't publish an overall width — measure before buying if a gate is tight.

Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to John Deere'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: John Deere (manufacturer) · archived copy

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