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.
- Ferris IS600 Zero Turn Mower — commercial: daily paid use and high acreage; 48-inch deck; gas powered
- Kubota Z242KW-48 — 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.
- IS600 Zero Turn Mower uses a Kawasaki® FS600V engine; Z242KW-48 uses a Kawasaki FR651V 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.
- IS600 Zero Turn Mower holds 6 gal (22.7 L) of fuel; Z242KW-48 holds 4.3 gal (16.3 L) of fuel, a 1.7 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.
- IS600 Zero Turn Mower has a published top speed of 10 mph; Z242KW-48 has a published top speed of 8 mph, a 2 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- IS600 Zero Turn Mower has a 18.5 hp engine; Z242KW-48 has a 21.5 hp engine, a 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.
- IS600 Zero Turn Mower has a 36.8 ci (603 cc) engine; Z242KW-48 has a 44.3 ci (726 cc) engine, a 7.5 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
1 more difference, calculated figures and what isn’t comparable
Other verified differences
- IS600 Zero Turn Mower weighs 942 lbs (427.3 kg); Z242KW-48 weighs 844 lbs (382.8 kg), a 98 lbs difference.
Calculated by MowerFacts
- IS600 Zero Turn Mower works out to 3.9 acres/hour; Z242KW-48 works out to 3.1 acres/hour, a 0.8 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
- Voltage: not published for Z242KW-48.
- Warranty: not published for Z242KW-48.
- Deck Material: not published for IS600 Zero Turn Mower.
- Deck Construction: not published for Z242KW-48.
- Drive System: not published for IS600 Zero Turn Mower.
- Start Type: not published for Z242KW-48.
- Cut height range: not published for Z242KW-48.
- Price: Z242KW-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 | IS600 Zero Turn Mower Ferris · Zero-Turn |
Z242KW-48 Kubota · Zero-Turn |
|---|---|---|
| List price | $9,294 | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Displacement | 36.8 ci (603 cc) | 44.3 ci (726 cc) |
| Engine Power | 18.5 hp | 21.5 hp |
| Engine Make | Kawasaki® FS600V | Kawasaki FR651V |
| Fuel Type | Gas | Gasoline |
| Cylinders | 2 | — |
| Start Type | Electric | — |
| Electrical | ||
| Voltage | 600 V | — |
| Deck | ||
| Cutting Width | 48 in (1219 mm) | 48 in (1219 mm) |
| Min Cut Height | 1.5 in (38 mm) | — |
| Max Cut Height | 4.5 in (114 mm) | — |
| Deck Material | — | 10Ga |
| Deck Construction | 10-gauge, Fabricated | — |
| Deck Gauge | — | 10 |
| Drive | ||
| Transmission | Dual commercial Hydro-Gear® ZT-3200® transaxles with 7" cooling fans | Hydro-Gear ZT-3100 |
| Ground Speed | 10 mph | 8 mph |
| Drive Tire Size | — | 22 x 10 - 14 |
| Reverse Speed | 5 mph | — |
| Drive System | — | Belt |
| Dimensions | ||
| Weight | 942 lbs (427.3 kg) | 844 lbs (382.8 kg) |
| Fuel Capacity | 6 gal (22.7 L) | 4.3 gal (16.3 L) |
| Length | 80 in (2032 mm) | — |
| Width | 63 in (1600 mm) | — |
| General | ||
| Warranty | 2 yr | — |
Where these models differ, explained
IS600 Zero Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.
Z242KW-48: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.