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.
- Walker Walker Model D21d — commercial: daily paid use and high acreage; 52-inch deck
- Wright Stander B 52 FS651E — commercial: daily paid use and high acreage; 52-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Walker Model D21d uses a Kubota engine; Stander B 52 FS651E uses a Kawasaki 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.
- Walker Model D21d runs on Diesel (2-D); Stander B 52 FS651E runs on Gasoline. Fuel type sets what you buy and store; it is not a measure of power.
- Walker Model D21d weighs 1,001 lbs (454 kg); Stander B 52 FS651E weighs 800 lbs (362.9 kg), a 201 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Walker Model D21d's weight means for a trailer ›
- Walker Model D21d has a published top speed of 6.5 mph; Stander B 52 FS651E has a published top speed of 7 mph, a 0.5 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- Walker Model D21d has a 20.9 hp engine; Stander B 52 FS651E has a 22 hp engine, a 1.1 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.
2 more differences, calculated figures and what isn’t comparable
Other verified differences
- Walker Model D21d holds 4.7 gal (17.8 L) of fuel; Stander B 52 FS651E holds 5 gal (18.9 L) of fuel, a 0.3 gal difference.
- Walker Model D21d cuts from 1 in (25 mm) to 4 in (102 mm); Stander B 52 FS651E cuts from 2 in (51 mm) to 5 in (127 mm).
Calculated by MowerFacts
- Walker Model D21d works out to 2.7 acres/hour; Stander B 52 FS651E works out to 2.9 acres/hour, a 0.2 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
- Blades: not published for Walker Model D21d.
- Deck Material: not published for Walker Model D21d.
- Deck Construction: not published for Walker Model D21d.
- Start Type: not published for Walker Model D21d.
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 | Walker Model D21d Walker · Commercial |
Stander B 52 FS651E Wright · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | diesel | gas |
| Engine Make | Kubota | Kawasaki |
| Displacement | 43.9 ci (719 cc) | 44.3 ci (726 cc) |
| Engine Power | 20.9 hp | 22 hp |
| Engine Model | — | FS651E |
| Fuel Type | Diesel (2-D) | Gasoline |
| Start Type | — | Electric |
| Deck | ||
| Cutting Width | 52 in (1321 mm) | 52 in (1321 mm) |
| Blades | — | 3 |
| Deck Material | — | 11 Gauge |
| Deck Construction | — | Floating-side discharge |
| Deck Gauge | — | 11 |
| Min Cut Height | 1 in (25 mm) | 2 in (51 mm) |
| Max Cut Height | 4 in (102 mm) | 5 in (127 mm) |
| Drive | ||
| Transmission | Dual Hydrostatic Eaton Model 7 transmission with ductile cast iron final drive, Each Wheel Independently Driven | Hydro |
| Ground Speed | 6.5 mph | 7 mph |
| Reverse Speed | — | 3 mph |
| Dimensions | ||
| Weight | 1001 lbs (454 kg) | 800 lbs (362.9 kg) |
| Fuel Capacity | 4.7 gal (17.8 L) | 5 gal (18.9 L) |
| Length | — | 65.7 in (1670 mm) |
| Width | — | 53 in (1346 mm) |
Where these models differ, explained
Walker Model D21d: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — walker.com.
Stander B 52 FS651E: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kawasakienginesusa.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.