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.
- Kubota ZD1021-60 — commercial: daily paid use and high acreage; 60-inch deck
- Walker Walker Model H24d — commercial: daily paid use and high acreage; 60-inch deck
What’s different? The 5 differences that matter most, from the published figures.
- ZD1021-60 uses a Diesel, liquid-cooled (3 cyl.) engine; Walker Model H24d uses a Rehlko 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.
- ZD1021-60 weighs 1,389 lbs (630 kg); Walker Model H24d weighs 997 lbs (452.2 kg), a 392 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What ZD1021-60's weight means for a trailer ›
- ZD1021-60 holds 6.1 gal (23.1 L) of fuel; Walker Model H24d holds 9.4 gal (35.6 L) of fuel, a 3.3 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.
- ZD1021-60 has a 21.6 hp engine; Walker Model H24d has a 23.7 hp engine, a 2.1 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.
- ZD1021-60 has a 54.8 ci (898 cc) engine; Walker Model H24d has a 62.7 ci (1,028 cc) engine, a 7.9 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
- ZD1021-60 has a published top speed of 9 mph; Walker Model H24d has a published top speed of 10 mph, a 1 mph difference.
Calculated by MowerFacts
- ZD1021-60 works out to 4.4 acres/hour; Walker Model H24d works out to 4.8 acres/hour, a 0.5 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
- Drive System: not published for Walker Model H24d.
- Cut height range: not published for ZD1021-60.
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 | ZD1021-60 Kubota · Commercial |
Walker Model H24d Walker · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | diesel | diesel |
| Engine Make | Diesel, liquid-cooled (3 cyl.) | Rehlko |
| Displacement | 54.8 ci (898 cc) | 62.7 ci (1028 cc) |
| Engine Power | 21.6 hp | 23.7 hp |
| Fuel Type | Diesel | Diesel (2-D) |
| Deck | ||
| Cutting Width | 60 in (1524 mm) | 60 in (1524 mm) |
| Min Cut Height | — | 1 in (25 mm) |
| Max Cut Height | — | 5 in (127 mm) |
| Drive | ||
| Transmission | 2-HST w/Gear reduction | Dual Independent Hydro-Gear ZT3400 Integrated Transaxles |
| Ground Speed | 9 mph | 10 mph |
| Drive System | Shaft | — |
| Dimensions | ||
| Weight | 1389 lbs (630 kg) | 997 lbs (452.2 kg) |
| Fuel Capacity | 6.1 gal (23.1 L) | 9.4 gal (35.6 L) |
ZD1021-60: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kubotausa.com.
Walker Model H24d: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — walker.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.