John Deere Z997R DieselZTrak™ Zero-Turn Mower
Commercial mower · Model Z997R · 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 Z997R Diesel (Z997R). Also sold in the United States: US specs and list price.
- Weighs 2,349 lb
- On a 6×12 trailer 3,249 lb towed, single-axle 3,500 lb
- Mows an acre in 13 min (9 at top speed) How long for your yard? ›
- How these are worked out ›
The John Deere Z997R DieselZTrak Zero-Turn Mower is a commercial-grade commercial mower, built for daily commercial mowing, with a 72-inch deck and a 1642cc engine making 37.4 hp. It weighs 2349 lb (1065.5 kg).
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
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
| Power Source | diesel |
|---|---|
| Displacement | 100.2 ci (1642 cc) |
| Engine Power | 37.4 hp |
| Cylinders | 3 |
| Engine Model | 3TNV88C |
| Fuel Type | Diesel or Biodiesel (up to B20) |
Deck
| Cutting Width | 72 in (1829 mm) |
|---|---|
| Deck Construction | 7-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
| Transmission | Hydrostatic |
|---|---|
| Ground Speed | 11.5 mph |
Dimensions
| Weight | 2349 lbs (1065.5 kg) |
|---|---|
| Fuel Capacity | 12 gal (45.4 L) |
Similar models
Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the Z997R DieselZTrak Zero-Turn Mower.
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 4 min
- 1 acre13 min 9 min
- 2 acres26 min 18 min
- 5 acres1 h 4 min 45 min
- 10 acres2 h 8 min 1 h 30 min
About 13 min per acre at 4.68 acres/hour, mowing at 8.0 mph. The second figure is at the published 11.5 mph top speed (6.69 acres/hour) — faster than anyone really mows. About 56.2 acres per tank.
Weight & hauling
- Machine weight2,349 lb
- + 6×12 trailer900 lb
- Towed weight3,249 lb
- single-axle 3,500 lbCarries it, 251 lb spare
- tandem-axle 7,000 lbCarries it, 3,751 lb spare
Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 3,249 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 inch0.519 hp/in
- Run time per tank~12.0 h
Mowing times assume 4.68 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 11.5 mph top speed John Deere publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 11.5 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