Scag Liberty Z
Zero-Turn mower · Commercial-duty · Gas
The Scag Liberty Z is a commercial-grade gas zero-turn mower, built for daily commercial mowing, with a 36-inch deck. It weighs 555 lb (251.7 kg).
At a glance
Engine
| Power Source | gas |
|---|---|
| Engine Power | 18 hp |
| Engine Make | Kawasaki® FR Series |
Deck
| Cutting Width | 36 in (914 mm) |
|---|---|
| Min Cut Height | 1.5 in (38 mm) |
| Max Cut Height | 4.5 in (114 mm) |
| Deck Construction | Dual-plate cutter deck constructed of 2 steel plates. Reinforcement plate at cutter deck spindles. |
Drive
| Ground Speed | 7 mph |
|---|---|
| Drive Tire Size | 20″ x 8″-10″ (36″)20″ x 10″-8″ (42″, 48″ and 52″)20″ x 10″-10″ (61″) |
| Drive System | 36″ and 42″ models: Hydro-Gear ZT-2800 Transaxle48″, 52″ and 61″ models: Tuff Torq TZ450 Transaxle |
| Reverse Speed | 5 mph |
Dimensions
| Weight | 555 lbs (251.7 kg) |
|---|---|
| Fuel Capacity | 3.5 gal (13.2 L) |
Commercial / Pro
| Seat Type | Padded with arm rests, adjustment forward and back (tools required)(no armrests on 36″ and 42″ models) |
|---|
Professional use
How the Liberty Z fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.
Productivity computed from deck width and ground speed. Compare on the calculator ›
| Deck width | 36 in |
|---|---|
| Engine make | Kawasaki® FR Series |
| Engine displacement | not specified by manufacturer |
| Engine power | 18 hp |
| Transmission | not specified by manufacturer |
| Drive type | not specified by manufacturer |
| Ground speed | 7 mph |
| Cut-height range | 38 mm – 114 mm |
| Fuel capacity | 13.25 L |
| Weight | 251.74 kg |
| Warranty | not specified by manufacturer |
| Commercial warranty | not specified by manufacturer |
| Deck construction | Dual-plate cutter deck constructed of 2 steel plates. Reinforcement plate at cutter deck spindles. |
| Deck gauge | not specified by manufacturer |
| Spindle type | not specified by manufacturer |
| Frame construction | not specified by manufacturer |
| Anti-scalp rollers | not specified by manufacturer |
| Drive tire size | 20″ x 8″-10″ (36″)20″ x 10″-8″ (42″, 48″ and 52″)20″ x 10″-10″ (61″) |
| Seat type | Padded with arm rests, adjustment forward and back (tools required)(no armrests on 36″ and 42″ models) |
| Dealer network | not specified by manufacturer |
See the Scag commercial pro hub › · Professional buying hub ›
Similar models
Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the Liberty Z.
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.
Source: Scag (manufacturer) · archived copy