Ferris IS 600 Review: 48 and 52-in. Zero-Turn

Power type	Gasoline
Engine	Kawasaki FS600V 18.5 hp; Kawasaki FS691V 23 hp; Briggs and Stratton CXi 25 hp, gross, per Ferris
Displacement	603 cc (FS600V); 726 cc (FS691V); 724 cc (CXi)
Fuel type	Gasoline
Transmission	Dual Hydro-Gear ZT-3200 transaxles with 7-in. fans
Drive	Zero-turn, rear-wheel drive, lever steering
Deck size	48 or 52 in.
Deck construction	10-gauge fabricated steel
Cutting height	1.5 to 4.5 in.
Top speed	0 to 10 mph forward, 0 to 5 mph reverse
Front tires	13x6.5-6
Rear tires	22x11-10 Reaper
Weight	942 lb (48-in.); 964 lb (52-in.), dry
Fuel capacity	6 US gal
Model numbers	5901908, 5902110 (48-in.); 5901911, 5902109 (52-in.)
Suspension	Pivoting front axle, front and rear coil-over shocks, 10-year warranty
Spindles	Cast aluminum, 1-in. shafts, greasable
Overall length	80 in.

Pros and cons

What we like

Full suspension at the lowest IS price
10 mph forward
10-gauge fabricated deck
Three engine choices
Fully serviceable transaxles

What could be better

Base 18.5 hp engine is modest
Top cut height is 4.5 in.
Smaller tires than the ISX 800
Only 48 and 52-in. decks
Blades not specified

IS 600 review

Ferris IS 600 in brief

The IS 600 is the entry model of Ferris’s IS suspension zero-turns. The company’s page shows four variants with 48 or 52-inch decks, and US list prices from $8,689 to $9,624. If you are reading a Ferris IS 600 review to decide between the IS line models, this is the lowest-priced, lightest and least powerful of the trio.

Engines

There are three engine options across four models. Model 5901908 has a 48-inch deck and a Kawasaki FS600V of 18.5 hp and 603 cc. Model 5901911 pairs the 52-inch deck with a Kawasaki FS691V of 23 hp and 726 cc. Models 5902110 (48-inch) and 5902109 (52-inch) use a Briggs and Stratton CXi of 25 hp and 724 cc.

The CXi models are cheaper than the Kawasaki ones despite higher stated hp. Ferris footnotes that its power figures are gross and rated by Kawasaki, so comparing across brands is unreliable.

Drive and ride

Transmissions are dual commercial Hydro-Gear ZT-3200 transaxles with 7-inch fans. Speed is 0 to 10 mph forward and 0 to 5 mph in reverse. The suspension combines a pivoting front axle with small front shocks and swing-arm rear shocks, backed by a 10-year warranty.

Drive tires are 22×11-10 and casters are 13×6.5-6. The seat is a mid-back design with armrests.

Deck

The 10-gauge fabricated deck cuts between 1.5 and 4.5 inches, a half inch less top height than the IS 700. Spindles are cast aluminum with 1-inch shafts, dual ball bearings and top grease fittings. The page does not list blades.

Accessories include a 2-bag hard-top collector of 10 cubic feet, mulch kit, striping kits, LED lights and a hitch kit.

Weight, warranty and fit

Dry weight is 942 lb for the 48-inch and 964 lb for the 52-inch. The tank holds 6 gallons, overall length is 80 inches and the ROPS folds 180 degrees. Warranty is 2 years unlimited hours or 4 years and 500 hours, with 10 years for the suspension.

It fits owners and small crews who want suspension and 10 mph at the lowest Ferris IS entry price.

Buying information

Price

$8,689

Starting US MSRP of the 48-in. Briggs CXi (5902110), seen on ferrismowers.com in Oct 2026. Other variants run to $9,624. Excludes setup and delivery.

Where to buy

Ferris (product page and dealer locator) (opens in a new tab) Sold through Ferris dealers; prices vary

Warranty

Per Ferris: 2 years unlimited hours or 4 years/500 hours (whichever comes first) on the balance of the machine, 10 years on the suspension. Engine warranty per the engine manual.

Depreciation and resale

No published resale figures; Ferris sells through dealers, so used values depend on local demand.

Ownership

Common problems

Spec-based limits: the 18.5 hp variant has less reserve in thick grass than the 23 and 25 hp ones, and the 6-gallon tank is shared by the whole IS range.

Search owner discussions in the forum →