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.
- Wright ZXT 61 61G8 — commercial: daily paid use and high acreage; 61-inch deck; gas powered
- Wright Autonomous ZK 72 61G8 — commercial: daily paid use and high acreage; 72-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- ZXT 61 61G8 has a Floating-side discharge deck; Autonomous ZK 72 61G8 has a Floating-Mulch deck.
- ZXT 61 61G8 weighs 1,521 lbs (689.9 kg); Autonomous ZK 72 61G8 weighs 1,201 lbs (544.8 kg), a 320 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What ZXT 61 61G8's weight means for a trailer ›
- ZXT 61 61G8 has a 61 in (1,549 mm) deck; Autonomous ZK 72 61G8 has a 72 in (1,829 mm) deck, a 11 in difference. Deck width sets how much grass each pass covers. Mowing time also depends on ground speed, turns and obstacles, so a wider deck alone does not fix the job's length. Time both decks on your own lawn ›
- ZXT 61 61G8 cuts from 1.5 in (38 mm) to 6 in (152 mm); Autonomous ZK 72 61G8 cuts from 1.5 in (38 mm) to 5.5 in (140 mm). The cut-height range is the shortest and tallest cut the deck offers. Most lawns are kept well inside it.
- ZXT 61 61G8 has a published top speed of 13 mph; Autonomous ZK 72 61G8 has a published top speed of 12.5 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.
calculated figures
Calculated by MowerFacts
- ZXT 61 61G8 works out to 6.4 acres/hour; Autonomous ZK 72 61G8 works out to 7.3 acres/hour, a 0.9 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.
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 | ZXT 61 61G8 Wright · Commercial |
Autonomous ZK 72 61G8 Wright · Commercial |
|---|---|---|
| List price | dealer quote | dealer quote |
| Engine | ||
| Power Source | gas | gas |
| Engine Make | Briggs & Stratton | Briggs & Stratton |
| Displacement | 60.6 ci (993 cc) | 60.6 ci (993 cc) |
| Engine Power | 40 hp | 40 hp |
| Engine Model | 61G8 | 61G8 |
| Fuel Type | Gasoline | Gasoline |
| Start Type | Electric | Electric |
| Deck | ||
| Cutting Width | 61 in (1549 mm) | 72 in (1829 mm) |
| Blades | 3 | 3 |
| Deck Material | 7 Gauge | 7 Gauge |
| Deck Construction | Floating-side discharge | Floating-Mulch |
| Deck Gauge | 7 | 7 |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 6 in (152 mm) | 5.5 in (140 mm) |
| Drive | ||
| Transmission | Hydro | Hydro |
| Ground Speed | 13 mph | 12.5 mph |
| Reverse Speed | 7 mph | 7 mph |
| Dimensions | ||
| Weight | 1521 lbs (689.9 kg) | 1201 lbs (544.8 kg) |
| Fuel Capacity | 15.5 gal (58.7 L) | 15.5 gal (58.7 L) |
| Length | 83.5 in (2121 mm) | 72 in (1829 mm) |
Where these models differ, explained
ZXT 61 61G8: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — wrightmfg.com.
Autonomous ZK 72 61G8: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — wrightmfg.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.