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A neutral, side-by-side reference of each model's stated specifications. MowerFacts does not rank one model above another — 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.
- Wright Stander ZK 61 FX820 — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Wright Autonomous ZK 61 61G8 — commercial: daily paid use and high acreage; 61-inch deck; gas powered
| Spec | Stander ZK 61 FX820 Wright · Commercial |
Autonomous ZK 61 61G8 Wright · Commercial |
|---|---|---|
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Kawasaki | Briggs & Stratton |
| Displacement | 50.2 ci (822 cc) | 60.6 ci (993 cc) |
| Engine Power | 34.5 hp | 40 hp |
| Start Type | Electric | Electric |
| Engine Model | FX820 | 61G8 |
| Fuel Type | Gasoline | Gasoline |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 61 in (1549 mm) |
| Blades | 3 | 3 |
| Deck Material | 7 Gauge | 7 Gauge |
| Deck Construction | Floating-side discharge | Floating-Mulch |
| Deck Gauge | 7 | 7 |
| Max Cut Height | 5.5 in (140 mm) | 5.5 in (140 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Drive | ||
| Transmission | Hydro | Hydro |
| Ground Speed | 12.5 mph | 12.5 mph |
| Reverse Speed | 7 mph | 7 mph |
| Dimensions | ||
| Weight | 1160 lbs (526.2 kg) | 1310 lbs (594.2 kg) |
| Fuel Capacity | 15.5 gal (58.7 L) | 15.5 gal (58.7 L) |
| Length | 70 in (1778 mm) | 70 in (1778 mm) |
Stander ZK 61 FX820: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — kawasakienginesusa.com.
Autonomous ZK 61 61G8: Specs verified against the retailer listing on Jun 6, 2026 — barryspowerequipment.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.