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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.
- Scag Liberty Z — commercial: daily paid use and high acreage; 36-inch deck; gas powered
- Scag Cheetah II — commercial: daily paid use and high acreage; 61-inch deck; gas powered
| Spec | Liberty Z Scag · Zero-Turn |
Cheetah II Scag · Zero-Turn |
|---|---|---|
| Engine | ||
| Power Source | gas | gas |
| Engine Power | 18 hp | 36 hp |
| Engine Make | Kawasaki® FR Series | Vanguard BIG BLOCK |
| Deck | ||
| Cutting Width | 36 in (914 mm) | 61 in (1549 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1.3 in (32 mm) |
| Max Cut Height | 4.5 in (114 mm) | 5 in (127 mm) |
| Deck Construction | Dual-plate cutter deck constructed of 2 steel plates. Reinforcement plate at cutter deck spindles. | Tri-plate cutter deck constructed of 3 steel plates totaling nearly 1/2″ of steel. Reinforcement plates at cutter deck spindles. |
| Deck Gauge | — | 7 |
| Drive | ||
| Ground Speed | 7 mph | 16 mph |
| Drive Tire Size | 20″ x 8″-10″ (36″)20″ x 10″-8″ (42″, 48″ and 52″)20″ x 10″-10″ (61″) | 24″ x 12″-12″ |
| Drive System | 36″ and 42″ models: Hydro-Gear ZT-2800 Transaxle48″, 52″ and 61″ models: Tuff Torq TZ450 Transaxle | Hydro-Gear ZT5400 Transaxle. Two-Speed |
| Reverse Speed | 5 mph | 8 mph |
| Dimensions | ||
| Weight | 555 lbs (251.7 kg) | 1392 lbs (631.4 kg) |
| Fuel Capacity | 3.5 gal (13.2 L) | 13 gal (49.2 L) |
| Commercial / Pro | ||
| Seat Type | Padded with arm rests, adjustment forward and back (tools required)(no armrests on 36″ and 42″ models) | 4-point iso-mounted mid-back mounted on operator-suspension platform |
Liberty Z: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — scag.com.
Cheetah II: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — scag.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.