Ferris SRS™ Z1 Stand-On Mowers (36" / 5901939)
Commercial mower · Model 5901939 · Commercial-duty · Gas
$10,449 Ferris list price
Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.
- Weighs 813 lb
- On a 6×12 trailer 1,713 lb towed, single-axle 3,500 lb
- Mows an acre in 37 min (26 at top speed) How long for your yard? ›
- How these are worked out ›
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
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 8 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
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 |
| Ground speed | 8 mph |
| Cut-height range | 44 mm – 114 mm |
| Fuel capacity | 22.7 L |
| Weight | 368.8 kg |
| Warranty | 4 |
| Deck construction | 10-gauge, Fabricated |
| Deck gauge | 10 ga |
Ferris doesn’t publish 7 of these for the SRS Z1 Stand-On Mowers (36 in / 5901939): drive type, commercial warranty, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.
See the Ferris commercial pro hub › · Professional buying hub ›
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.
See every mower with a Kawasaki FX600V engine ›
What the parts on this spec sheet mean
Other Ferris SRS Z1 models › 3 more in this range: SRS Z1 Stand-On Mowers (36 in / 5901941), SRS Z1 Stand-On Mowers (48 in / 5901940), SRS Z1 Stand-On Mowers (48 in / 5901942)
See all Ferris mowers and specs ›
Spot a wrong spec? Suggest a correction.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Ferris’s own numbers — not published by the manufacturer.
Mowing time
- ¼ acre9 min 6 min
- ½ acre18 min 13 min
- 1 acre37 min 26 min
- 2 acres1 h 14 min 52 min
- 5 acres3 h 4 min 2 h 9 min
About 37 min per acre at 1.63 acres/hour, mowing at 5.6 mph. The second figure is at the published 8.0 mph top speed (2.33 acres/hour) — faster than anyone really mows. About 9.8 acres per tank.
Weight & hauling
- Machine weight813 lb
- + 6×12 trailer900 lb
- Towed weight1,713 lb
- single-axle 3,500 lbCarries it, 1,787 lb spare
- tandem-axle 7,000 lbCarries it, 5,287 lb spare
Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,713 lb.
Gate & trailer fit
- 32 in gateToo wide
- 36 in gateToo wide
- 48 in gateFits
Needs at least 42 in of clearance (estimated).
Power & run time
- Power per deck inch0.514 hp/in
- Run time per tank~6.0 h
Mowing times assume 1.63 acres/hour: deck width x 5.6 mph at 80% efficiency, which allows for overlap, turns and trimming. 5.6 mph is 70% of the 8.0 mph top speed Ferris publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 8.0 mph, shown so you can see it.
Fit uses the deck width plus 6 in for the discharge chute, because Ferris doesn't publish an overall width — measure before buying if a gate is tight.
Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Ferris's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.
Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.
Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) questions
What size deck is on the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939)?
The Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) has a 36-inch (914 mm) cutting deck with 10-gauge, fabricated construction.
What engine is in the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939)?
The Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) is powered by a Kawasaki® FX600V, 603 cc, 18.5 hp. Horsepower is the manufacturer's own rating.
How much does the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) weigh?
The Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) weighs 813 lb (368.8 kg) as specified by Ferris.
What size trailer do I need for the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939)?
At 813 lb, the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 1,713 lb of towed weight. That is within a single-axle 3,500 lb trailer, and your tow vehicle needs to be rated for at least 1,713 lb. Tongue weight, axle placement and your own trailer's empty weight still have to be checked — this is the arithmetic, not a loading plan.
How fast is the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939)?
Top ground speed is 8 mph. With its 36-inch deck that works out to about 2.33 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.
How long does the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) take to mow an acre?
About 26 min per acre, from its 36-inch deck at 8 mph and 80% efficiency — roughly 2.33 acres an hour, so five acres is about 2 h 9 min. Rough or obstacle-heavy ground takes longer; this is deck width times ground speed, not a timed test.
How big is the fuel tank on the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939)?
The Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) holds 6 gal (22.7 L) of fuel.
How much does the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) cost?
Ferris's published list price is $10,449, checked 23 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.
What is the Ferris SRS Z1 Stand-On Mowers (36 in / 5901939) built for?
Commercial-duty commercial mower. Built for daily, paid commercial use.
Source: Ferris (manufacturer) · archived copy