Altoz XC 610 SSi vs Walker Walker Model H27i
A side-by-side spec reference for two commercial machines. Where computed productivity separates them, the faster machine is marked a Data Pick with the arithmetic shown — the tables lay out each model's stated specs so you can match a machine to your property and routes.
A side-by-side for the commercial mower Altoz XC 610 SSi and the commercial mower Walker Walker Model H27i. Open the full spec table in the compare tool ›
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
- Walker Walker Model H27i — commercial: daily paid use and high acreage; 60-inch deck
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.
Productivity
| Measure | XC 610 SSi | Walker Model H27i |
|---|---|---|
| Cutting deck | 61 in | 60 in |
| Ground speed | 19 mph | 10 mph |
| Acres/hr (80%) | 6.56 | 3.39 |
| Acres/hr (100%) | 11.71 | 6.06 |
| List price | dealer quote | dealer quote |
Acres/hour computed from deck width and ground speed; 80% accounts for turns, overlap and trimming. Calculator ›
Components
| Component | XC 610 SSi | Walker Model H27i |
|---|---|---|
| Engine make | Kawasaki | Rehlko |
| Displacement | 999 cc | 747 cc |
| Engine power | 35 hp | 26.5 hp |
| Transmission | Hydrostatic | Dual Independent Hydro-Gear ZT3400 Integrated Transaxles |
| Drive type | not specified by manufacturer | not specified by manufacturer |
Ownership & dimensions
| Spec | XC 610 SSi | Walker Model H27i |
|---|---|---|
| Weight | 635.03 kg | 339.29 kg |
| Fuel capacity | 53 L | 35.58 L |
| Warranty | 3 | not specified by manufacturer |
| Dimensions (L×W×H mm) | 2172 × not specified by manufacturer × not specified by manufacturer | not specified by manufacturer |
Dealer network and dimensions not in our data are shown as "not specified by manufacturer." See the full spec sheet on each model page.
Alternatives to cross-shop
FAQ
Is the Altoz XC 610 SSi or the Walker Walker Model H27i better?
MowerFacts is a spec reference, not a review — we don't crown a winner. The Altoz XC 610 SSi and Walker Walker Model H27i are both commercial machines with their own deck widths, engines and dimensions; the tables below lay out each spec side by side so you can match a machine to your property and routes.
How many acres per hour can the Altoz XC 610 SSi and Walker Walker Model H27i mow?
At 80% efficiency the Altoz XC 610 SSi (61-in deck at 19 mph) covers about 6.56 acres/hour and the Walker Walker Model H27i (60-in deck at 10 mph) about 3.39 acres/hour, before trimming and trailering time.
← All pro head-to-heads · Full spec comparison →
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.