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.
RZS651GKA48CA3 Specs & Compare
| UPC | 193308225463 |
| Onboard Intelligence | None |
| Starter | Electric |
| Steering Control | Hydraulically dampened twin levers adjustable both fore and aft. Also has 2-position height adjustment. |
| Front Caster Tires | 13 x 6.5-6, smooth tread, pneumatic. Caged Roller Bearings (126-3289) |
| Drive Tires | 23 x 9.5-12 Super Turf TL |
| Parking Brake | Lever-actuated pawl brake. |
| Tractor Frame | Unibody, welded, heavy-duty 2" X 3" rectangular tubular steel. |
| Blade Spindles | No maintenance, sealed and non-greasable spindles; 7.75"-diameter cutter housing with 25mm (.98") diameter spindle shaft and splined blade driver. |
| Cup Holder | Yes |
| Electrical | 12-volt battery with 15-amp alternator. |
| Standard Features | Engine hour meter, cup holder, tow hitch and jack receiver |
| Seat | Deluxe suspension (adjustable spring suspension) seat with high back, molded foam flip-up armrests, and integral safety switch |
| Power Components | |
| Transmission Brand | Hydro-Gear |
| Engine Brand | Kawasaki |
| Transmission Speeds | Infinitely Variable |
| Engine Model | FX651V |
| Engine Displacement | 726 |
| Engine Series | V-Twin |
| Fuel System | Carbureted |
| Speed | Infinitely variable speed selection from 0-9.0 mph forward, 0-5.0 mph reverse |
| Engine Spec | FX801V-MS04-R |
| Transmission | Hydrostatic |
| Drive | Hydro-Drive |
| Engine Spec | FX651V_S13 |
| Engine Speed | 3,800 RPM |
| Air Filter | Cyclonic Air Cleaner |
| Fuel Capacity | 7-gallon single fuel tank with single fill location |
| Drive Description | Dual Hydro Gear ZT3100, hydrostatic transmission with charge pumps, relief valves and independent, replaceable filters. |
| Fuel Type | Gas Carbureted |
| PTO Engagement | MagStop electromagnetic 125-ft-lb clutch |
| Drive System | Hydro-Drive |
| Drive Wheel Release | Allows unit movement without engine running. |
| Fuel Indicator | Translucent Visual |
| Deck Lift | Standard; foot-controlled deck lift changes cutting height and lifts the deck to maneuver around obstacles, or place in transport position. |
| Carb Compliant | No |
| Safety Package | Operator Presence Controls (OPC) and drive system interlock, with safety interlock system indicators |
| ROPS | 2-post foldable ROPS standard with seat belt and latch. |
| DECKS | |
| Deck Style | Floating Deck |
| Deck Style Description | Full-floating UltraCut Series 3. Side discharge standard, with molded discharge chute and option to |
| Width / Cutting Deck | 48" |
| Deck Construction | 10-gauge high strength alloy top that is formed and continuously seam welded, with 7-gauge side skirt. |
| Cutting Heights | 1.5" to 5.0" in 0.25" increments |
| Blade Tip Speed | Approximately 18,500 fpm |
| Bag Capacity | N/A |
| Blades | 2 Blades at 24.5" Length |
| DIMENSIONS | |
| Width | 61" |
| Height | 69.7" |
| Length | 82.9" |
| Curb Weight | 900 |
RZS651GKA48CA3 Features & Benefits
UltraCut Deck Technology
Exmark’s exclusive UltraCut decks are featured on Radius models. Every UltraCut cutting deck features Exmark’s exclusive maintenance-free, sealed-bearing spindle assemblies for increased durability and reduced downtime, combined with zero maintenance.
Heavy Duty Fabricated Frame
With a fully welded frame built from 2x3-inch frame tubes, the Radius design places major components including the engine, hydro drive system and fuel tank lower in the frame. The lower center of gravity and better mass centralization results in increased traction and stability, with improved handling.
Adjustable Rollover Protection System (ROPS)
A new adjustable ROPS system is easy to fold up-and-down, and is built from round tubes for easy, flexible accessory placement. (Available Spring 2023)
Height of Cut Made Easy
Our patented height of cut adjustment system is user friendly and allows the operator to quickly and accurately select height of cut from the operator seat.
Full-Suspension Operator Seat
Radius S- and X-Series models feature an adjustable full-suspension operator seat, with three inches of suspension and an EVC stretch foam base for superior all day mowing comfort.
Fully Guarded Engine
With strong steel lower protection and durable composite upper protection, the Radius S-Series engine is well guarded against damage from foreign objects.
RZS651GKA48CA3 Attachments & Accessories
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