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
- Ferris IS600 Zero Turn Mower (48 in / 5902110) — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Spartan RZ-XD uses a Kawasaki engine; IS600 Zero Turn Mower (48 in / 5902110) uses a Briggs & Stratton® CXi engine. The engine maker builds the engine; the mower maker chooses the model, rating and fit, so the badge alone does not settle output or longevity.
- Spartan RZ-XD holds 9.5 gal (36 L) of fuel; IS600 Zero Turn Mower (48 in / 5902110) holds 6 gal (22.7 L) of fuel, a 3.5 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.
- Spartan RZ-XD carries a 3-year warranty; IS600 Zero Turn Mower (48 in / 5902110) carries a 2-year warranty, a 1 year difference. Warranty length is the maker's published term. Conditions and commercial-use limits differ between makers.
- Spartan RZ-XD lists at $9,499; IS600 Zero Turn Mower (48 in / 5902110) lists at $8,689, a $810 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- Spartan RZ-XD has a published top speed of 9 mph; IS600 Zero Turn Mower (48 in / 5902110) 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.
3 more differences, calculated figures and what isn’t comparable
Other verified differences
- Spartan RZ-XD cuts from 1.5 in (38 mm) to 4.8 in (121 mm); IS600 Zero Turn Mower (48 in / 5902110) cuts from 1.5 in (38 mm) to 4.5 in (114 mm).
- Spartan RZ-XD has a 24 hp engine; IS600 Zero Turn Mower (48 in / 5902110) has a 25 hp engine, a 1 hp difference.
- Spartan RZ-XD weighs 907 lbs (411.4 kg); IS600 Zero Turn Mower (48 in / 5902110) weighs 942 lbs (427.3 kg), a 35 lbs difference.
Calculated by MowerFacts
- Spartan RZ-XD works out to 3.5 acres/hour; IS600 Zero Turn Mower (48 in / 5902110) 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.
- Transmission: not published for Spartan RZ-XD.
- Fuel Type: not published for Spartan RZ-XD.
- Deck Material: not published for Spartan RZ-XD.
- Deck Construction: not published for IS600 Zero Turn Mower (48 in / 5902110).
- Start Type: not published for Spartan RZ-XD.
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 |
IS600 Zero Turn Mower (48 in / 5902110) Ferris · Zero-Turn |
|---|---|---|
| List price | $9,499 | $8,689 |
| Engine | ||
| Power Source | gas | gas |
| Displacement | — | 44.2 ci (724 cc) |
| Engine Power | 24 hp | 25 hp |
| Engine Make | Kawasaki | Briggs & Stratton® CXi |
| Fuel Type | — | Gas |
| Cylinders | — | 2 |
| Start Type | — | Electric |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 4.8 in (121 mm) | 4.5 in (114 mm) |
| Deck Material | — | 10-gauge, Fabricated |
| Deck Construction | 5" Deep, Reinforced 7 Gauge Full-Floating Deck | — |
| Deck Gauge | — | 10 |
| Drive | ||
| Transmission | — | Dual commercial Hydro-Gear® ZT-3200® transaxles with 7" cooling fans |
| Ground Speed | 9 mph | 10 mph |
| Drive Tire Size | 24x12-12 Reapers | — |
| Reverse Speed | — | 5 mph |
| Dimensions | ||
| Weight | 907 lbs (411.4 kg) | 942 lbs (427.3 kg) |
| Fuel Capacity | 9.5 gal (36 L) | 6 gal (22.7 L) |
| Length | 84 in (2134 mm) | 80 in (2032 mm) |
| Height | 75 in (1905 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 | 2 yr |
Where these models differ, explained
Spartan RZ-XD: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — joinspartannation.com.
IS600 Zero Turn Mower (48 in / 5902110): Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.