Ferris SRS™ Z1 Stand-On Mowers (36" / 5901939)
Commercial mower · Model 5901939 · Commercial-duty · Gas
The Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) is a commercial-grade gas stand-on mower, built for daily commercial route work, with a 36-inch deck and a 603cc engine making 18.5 hp. It weighs 813 lb (368.8 kg).
At a glance
Engine
| Power Source | gas |
|---|---|
| Engine Make | Kawasaki® FX600V |
| Displacement | 36.8 ci (603 cc) |
| Engine Power | 18.5 hp |
| Cylinders | 2 |
| Fuel Type | Gas |
| Start Type | Electric |
Deck
| Cutting Width | 36 in (914 mm) |
|---|---|
| Deck Material | 10-gauge, Fabricated |
| Deck Gauge | 10 |
| Max Cut Height | 4.5 in (114 mm) |
| Min Cut Height | 1.7 in (44 mm) |
Drive
| Transmission | Hydro-Gear® ZT-3400® transaxles with 7" cooling fans |
|---|---|
| Ground Speed | 8 mph |
| Reverse Speed | 4 mph |
Dimensions
| Weight | 813 lbs (368.8 kg) |
|---|---|
| Fuel Capacity | 6 gal (22.7 L) |
| Length | 65 in (1651 mm) |
General
| Warranty | 4 yr |
|---|
Professional use
How the SRS Z1 Stand-On Mowers (36 in / 5901939) fits commercial and high-acreage work, from the specs we have. Format: Stand-on commercial. Duty class: Commercial.
Productivity computed from deck width and ground speed. Compare on the calculator ›
| Deck width | 36 in |
|---|---|
| Engine make | Kawasaki® FX600V |
| Engine displacement | 603 cc |
| Engine power | 18.5 hp |
| Transmission | Hydro-Gear® ZT-3400® transaxles with 7" cooling fans |
| Drive type | not specified by manufacturer |
| Ground speed | 8 mph |
| Cut-height range | 44 mm – 114 mm |
| Fuel capacity | 22.71 L |
| Weight | 368.77 kg |
| Warranty | 4 |
| Commercial warranty | not specified by manufacturer |
| Deck construction | 10-gauge, Fabricated |
| Deck gauge | 10 ga |
| Spindle type | not specified by manufacturer |
| Frame construction | not specified by manufacturer |
| Anti-scalp rollers | not specified by manufacturer |
| Drive tire size | not specified by manufacturer |
| Seat type | not specified by manufacturer |
| Dealer network | not specified by manufacturer |
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Similar models
Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the SRS Z1 Stand-On Mowers (36 in / 5901939).
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ferrismowers.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Source: Ferris (manufacturer) · archived copy