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.
- Altoz XC 610 SSi — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Walker Walker Model H27i — commercial: daily paid use and high acreage; 60-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- XC 610 SSi weighs 1,400 lbs (635 kg); Walker Model H27i weighs 748 lbs (339.3 kg), a 652 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What XC 610 SSi's weight means for a trailer ›
- XC 610 SSi has a published top speed of 19 mph; Walker Model H27i has a published top speed of 10 mph, a 9 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- XC 610 SSi uses a Kawasaki engine; Walker Model H27i 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.
- XC 610 SSi has a 35 hp engine; Walker Model H27i has a 26.5 hp engine, a 8.5 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.
- XC 610 SSi holds 14 gal (53 L) of fuel; Walker Model H27i holds 9.4 gal (35.6 L) of fuel, a 4.6 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.
2 more differences, calculated figures and what isn’t comparable
Other verified differences
- XC 610 SSi has a 61 ci (999 cc) engine; Walker Model H27i has a 45.6 ci (747 cc) engine, a 15.4 ci difference.
- XC 610 SSi cuts from 1.5 in (38 mm) to 5 in (127 mm); Walker Model H27i cuts from 1 in (25 mm) to 5 in (127 mm).
Calculated by MowerFacts
- XC 610 SSi works out to 9.4 acres/hour; Walker Model H27i works out to 4.8 acres/hour, a 4.5 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
- Warranty: not published for Walker Model H27i.
- Blades: not published for Walker Model H27i.
- Deck Material: not published for Walker Model H27i.
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 | XC 610 SSi Altoz · Commercial |
Walker Model H27i Walker · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Rehlko |
| Displacement | 61 ci (999 cc) | 45.6 ci (747 cc) |
| Engine Power | 35 hp | 26.5 hp |
| Cylinders | 2 | — |
| Engine Model | FX1000V EFI | — |
| Fuel Type | Gasoline | Automotive Grade Unleaded Gasoline (87 Octane Minimum, 10% Ethanol Maximum) |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 60 in (1524 mm) |
| Blades | 3 | — |
| Deck Material | Fabricated Steel | — |
| Anti-Scalp Rollers | No | — |
| Min Cut Height | 1.5 in (38 mm) | 1 in (25 mm) |
| Blade Tip Speed | 18501 ft/min (5639 m/min) | — |
| Max Cut Height | 5 in (127 mm) | 5 in (127 mm) |
| Drive | ||
| Transmission | Hydrostatic | Dual Independent Hydro-Gear ZT3400 Integrated Transaxles |
| Ground Speed | 19 mph | 10 mph |
| Drive Tire Size | 26" | — |
| Dimensions | ||
| Weight | 1400 lbs (635 kg) | 748 lbs (339.3 kg) |
| Fuel Capacity | 14 gal (53 L) | 9.4 gal (35.6 L) |
| Length | 85.5 in (2172 mm) | — |
| General | ||
| Warranty | 3 yr | — |
Where these models differ, explained
XC 610 SSi: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — altoz.com.
Walker Model H27i: 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.