2023 Exmark RADIUS S RZS730GKA603A3 Lawn Mowers

Whether you're upgrading from an older machine or are looking to add another zero-turn to your trailer, the new Radius S-Series delivers an unbeatable combination of durability, operator comfort, performance, and value. Choose from 48-, 52-, or 60-inch UltraCut Series 3 side-discharge cutting decks, each equipped with our exclusive flow-control baffles for a superior cut quality. An adjustable full-suspension operator seat and isolated footrest provide superior all-day mowing comfort.


Radius S-Series models are also designed for maximum durability with reduced maintenance. With just two grease points to lubricate annually, low-maintenance Hydro-Gear integrated transmissions, and reliable Kawasaki commercial engines, Radius S-Series models are built for the long haul.


Looking for even more performance, power, and durability? Check out the new Radius X-Series zero-turn mower.

Engine Manufacturer Brand: Kawasaki
Displacement 726
Emissions Series: V-Twin
Rated Engine Speed 3,600 rpm
Air Filter Donaldson Heavy Duty air cleaner

Fuel Type Gas Carbureted
Fuel System Fuel Indicator: Translucent Visual

PTO Type Engagement: MagStop electromagnetic 125-ft-lb clutch

Drivetrain Hydro-Drive | Description: Dual Hydro Gear ZT3100, hydrostatic transmission with charge pumps, relief valves and independent, replaceable filters.
Steering Control: Hydraulically dampened twin levers adjustable both fore and aft. Also has 2-position height adjustment.

Parking Brake Lever-actuated pawl brake.
Wheels & Tires
Tires, Front Specification 23 x 9.5-12 K500 | Caster: 13 x 6.5-6, smooth tread, pneumatic. Caged Roller #### Bearings
Tires, Rear Specification 23 x 9.5-12 K500

Electrical 12-volt battery with 15-amp alternator.

Operating Speed Forward: 0--9.0 mph (14.5 kmph) | Reverse: 0--5.0 mph (8.0 kmph)
Top Speed Blade: Approximately 18,500 fpm.

Frame Type Tractor: Unibody, welded, heavy-duty 2" X 3" rectangular tubular steel.

Safety Features Package: Operator Presence Controls (OPC) and drive system interlock, with safety interlock system indicators.

Spindle Diameter Blade Cutter Housing: 7.30" | Blade Shaft: 17mm (.67")
Dimensions Casters: .375" thick caster yoke arms
Cutting Width Deck: 52"
Width 64.3 in (163.3 cm)
Length Blades: 3 Blades at 18.00" | 81.7 in (207.5 cm)
Height Cutting: 1.5" (3.8 cm) to 5.0" (12.7 cm) in 0.25" (.6 cm) increments | 70.2 inches (178.3 cm)

Fuel Capacity 7-gallon (26.5-L)

Seat Type High back seat with foam padded seat cushion, armrests and integral safety switch
Construction Material, Deck Style: Floating | Style Description: Full-floating UltraCut Series 3. Side discharge standard, with molded discharge chute and option to bag or mulch. | 10-gauge high strength alloy top that is formed and continuously seam welded, with 7-gauge side skirt.