Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- John Deere Z994R DieselZTrak Zero-Turn Mower — commercial: daily paid use and high acreage; 72-inch deck
- Hustler Turf X-ONE — commercial: daily paid use and high acreage; 72-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Z994R DieselZTrak Zero-Turn Mower has a 77.3 ci (1,266.7 cc) engine; X-ONE has a 52 ci (852 cc) engine, a 25.3 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
- Z994R DieselZTrak Zero-Turn Mower weighs 1,810 lbs (821 kg); X-ONE weighs 1,405 lbs (637.3 kg), a 405 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Z994R DieselZTrak Zero-Turn Mower's weight means for a trailer ›
- Z994R DieselZTrak Zero-Turn Mower has a 24.7 hp engine; X-ONE has a 27 hp engine, a 2.3 hp difference. Published horsepower is the maker's rating at a stated engine speed. It is a different measure from displacement, and two engines of equal rating can pull differently.
- Z994R DieselZTrak Zero-Turn Mower has a published top speed of 11.4 mph; X-ONE has a published top speed of 12 mph, a 0.6 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- Z994R DieselZTrak Zero-Turn Mower holds 11.5 gal (43.5 L) of fuel; X-ONE holds 12 gal (45.4 L) of fuel, a 0.5 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- Z994R DieselZTrak Zero-Turn Mower works out to 6.6 acres/hour; X-ONE works out to 7.0 acres/hour, a 0.3 acres/hour difference. Calculated by MowerFacts from deck width and the published top speed at 80% efficiency; it is not a manufacturer figure, and real mowing is slower.
Not comparable
- Warranty: not published for Z994R DieselZTrak Zero-Turn Mower.
- Engine Make: not published for Z994R DieselZTrak Zero-Turn Mower.
- Fuel Type: not published for X-ONE.
- Cut height range: not published for Z994R DieselZTrak Zero-Turn Mower.
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | Z994R DieselZTrak Zero-Turn Mower John Deere · Commercial |
X-ONE Hustler Turf · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | diesel | gas |
| Engine Make | — | Kawasaki FX850, FX850 EFI |
| Displacement | 77.3 ci (1266.7 cc) | 52 ci (852 cc) |
| Engine Power | 24.7 hp | 27 hp |
| Cylinders | 3 | — |
| Engine Model | 3TNV80F | — |
| Fuel Type | Diesel or Biodiesel (up to B20) | — |
| Deck | ||
| Cutting Width | 72 in (1829 mm) | 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 | Fabricated |
| Deck Gauge | — | 7 |
| Min Cut Height | — | 1 in (25 mm) |
| Max Cut Height | — | 5.5 in (140 mm) |
| Drive | ||
| Transmission | Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling | Hydro-Gear® ZT-4400® |
| Ground Speed | 11.4 mph | 12 mph |
| Drive Tire Size | — | 24 x 12-12 |
| Drive Type | — | Dual Hydrostatic |
| Dimensions | ||
| Weight | 1810 lbs (821 kg) | 1405 lbs (637.3 kg) |
| Fuel Capacity | 11.5 gal (43.5 L) | 12 gal (45.4 L) |
| Commercial / Pro | ||
| Seat Type | — | I3M Suspension Seat |
| General | ||
| Warranty | — | 5 yr |
Where these models differ, explained
Z994R DieselZTrak Zero-Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.
X-ONE: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — hustlerturf.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.