Grasshopper 900D 1.3L 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 zero-turn mower Grasshopper 900D 1.3L 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.
- Grasshopper 900D 1.3L — 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.
- 900D 1.3L weighs 1,595 lbs (723.5 kg); Walker Model H27i weighs 748 lbs (339.3 kg), a 847 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What 900D 1.3L's weight means for a trailer ›
- 900D 1.3L uses a Kubota 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.
- 900D 1.3L has a 77 ci (1,261.8 cc) engine; Walker Model H27i has a 45.6 ci (747 cc) engine, a 31.4 ci difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
- 900D 1.3L holds 8 gal (30.3 L) of fuel; Walker Model H27i holds 9.4 gal (35.6 L) of fuel, a 1.4 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.
- 900D 1.3L has a 24 hp engine; Walker Model H27i has a 26.5 hp engine, a 2.5 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.
1 more difference, calculated figures and what isn’t comparable
Other verified differences
- 900D 1.3L has a published top speed of 11 mph; Walker Model H27i has a published top speed of 10 mph, a 1 mph difference.
Calculated by MowerFacts
- 900D 1.3L works out to 5.4 acres/hour; Walker Model H27i works out to 4.8 acres/hour, a 0.6 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
- Price: Walker Model H27i 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.
Productivity
| Measure | 900D 1.3L | Walker Model H27i |
|---|---|---|
| Cutting deck | 61 in | 60 in |
| Ground speed | 11 mph | 10 mph |
| Acres/hr (80%) | 3.8 | 3.39 |
| Acres/hr (100%) | 6.78 | 6.06 |
| List price | $23,895 | dealer quote |
Acres/hour computed from deck width and ground speed; 80% accounts for turns, overlap and trimming. Calculator ›
Components
| Component | 900D 1.3L | Walker Model H27i |
|---|---|---|
| Engine make | Kubota | Rehlko |
| Displacement | 1261.8 cc | 747 cc |
| Engine power | 24 hp | 26.5 hp |
| Transmission | G3 Hydrostatic Transmission | Dual Independent Hydro-Gear ZT3400 Integrated Transaxles |
| Drive type | not specified by manufacturer | not specified by manufacturer |
Ownership & dimensions
| Spec | 900D 1.3L | Walker Model H27i |
|---|---|---|
| Weight | 723.48 kg | 339.29 kg |
| Fuel capacity | 30.28 L | 35.58 L |
| Warranty | not specified by manufacturer | not specified by manufacturer |
| Dimensions (L×W×H mm) | 2858 × 1384 × 1765 | 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 Grasshopper 900D 1.3L or the Walker Walker Model H27i better?
MowerFacts is a spec reference, not a review — we don't crown a winner. The Grasshopper 900D 1.3L 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 Grasshopper 900D 1.3L and Walker Walker Model H27i mow?
At 80% efficiency the Grasshopper 900D 1.3L (61-in deck at 11 mph) covers about 3.8 acres/hour and the Walker Walker Model H27i (60-in deck at 10 mph) about 3.39 acres/hour, before trimming and trailering time.
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900D 1.3L: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — grasshoppermower.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.