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.
- Spartan Spartan RZ-XD — commercial: daily paid use and high acreage; 48-inch deck; gas powered
- Kubota Z412KWNC-48 — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 3 differences that matter most, from the published figures.
- Spartan RZ-XD holds 9.5 gal (36 L) of fuel; Z412KWNC-48 holds 6.8 gal (25.7 L) of fuel, a 2.7 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.
- Spartan RZ-XD has a 24 hp engine; Z412KWNC-48 has a 22 hp engine, a 2 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.
- Spartan RZ-XD has a published top speed of 9 mph; Z412KWNC-48 has a published top speed of 10 mph, a 1 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
calculated figures and what isn’t comparable
Calculated by MowerFacts
- Spartan RZ-XD works out to 3.5 acres/hour; Z412KWNC-48 works out to 3.9 acres/hour, a 0.4 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
- Displacement: not published for Spartan RZ-XD.
- Warranty: not published for Z412KWNC-48.
- Transmission: not published for Spartan RZ-XD.
- Fuel Type: not published for Spartan RZ-XD.
- Deck Construction: not published for Z412KWNC-48.
- Drive System: not published for Spartan RZ-XD.
- Cut height range: not published for Z412KWNC-48.
- Price: Z412KWNC-48 is dealer quote only.
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 | Spartan RZ-XD Spartan · Zero-Turn |
Z412KWNC-48 Kubota · Zero-Turn |
|---|---|---|
| List price | $9,499 | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Displacement | — | 44.3 ci (726 cc) |
| Engine Power | 24 hp | 22 hp |
| Engine Make | Kawasaki | Kawasaki FS651V |
| Fuel Type | — | Gasoline |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Min Cut Height | 1.5 in (38 mm) | — |
| Max Cut Height | 4.8 in (121 mm) | — |
| Deck Construction | 5" Deep, Reinforced 7 Gauge Full-Floating Deck | — |
| Drive | ||
| Transmission | — | Hydro-Gear Commercial ZT-3600 |
| Ground Speed | 9 mph | 10 mph |
| Drive Tire Size | 24x12-12 Reapers | 24 x 9.5 - 14, LP |
| Reverse Speed | — | 5 mph |
| Drive System | — | Hydro-Gear Commercial ZT3600 2-HST w/Gear reduction |
| Dimensions | ||
| Weight | 907 lbs (411.4 kg) | 904 lbs (410 kg) |
| Fuel Capacity | 9.5 gal (36 L) | 6.8 gal (25.7 L) |
| Length | 84 in (2134 mm) | 80.9 in (2055 mm) |
| Width | — | 61.1 in (1552 mm) |
| Height | 75 in (1905 mm) | 69.8 in (1772 mm) |
| Commercial / Pro | ||
| Frame Construction | 1.5" by 3" Powder Coated Fusion-Bonded Solid Steel Bridge Frame | — |
| Seat Type | Dymetrol Seat with 360 Degree Floating Seat Platform | — |
| General | ||
| Warranty | 3 yr | — |
Where these models differ, explained
Spartan RZ-XD: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — joinspartannation.com.
Z412KWNC-48: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubota.ca.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.