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2026 Exmark Radius X-Series RDX691GKA524A3

Total Price:    $10,351.98

Highlights

Tishomingo, MS
In Stock
New
2026
Exmark
Radius X-Series RDX691GKA524A3
Red
Lawn Mower
Zero-Turn Mower

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info specifications
Discover the Exmark Radius X-Series Mower
If you’re looking for the power and productivity of a premium commercial mower on a budget, you’re looking for the new Radius X-Series. It combines features first proven on our premier Lazer Z models with the unbeatable value you’ve come to expect from Radius.

Choose from 52- or 60-inch UltraCut Series 4 side-discharge cutting decks and premium Kawasaki commercial engines. Integrated high-capacity HydroGear transmissions work with aggressive 24-inch Kenda drive tires to deliver unmatched traction and control, with ground speeds of up to 10 mph. Large semi-pneumatic caster tires, upgraded cast steel caster forks and tapered caster pivot bearings provide years of maintenance-free performance. And with an adjustable full-suspension operator seat and isolated floor pan, the Radius X-Series delivers enhanced operator comfort that’s ideal for long work days.

UltraCut Series 4 Cutting Deck
Fabricated and fully welded of high-strength steel, the UltraCut Series 4 cutting deck features Exmark’s exclusive Flow-Control baffles for Exmark Signature cut quality. Maintenance-free sealed bearing spindle assemblies and upgraded double-capture anti-scalp rollers offer increased durability with reduced maintenance requirements.

Kawasaki Commercial Engines
Radius X-Series takes commercial power and performance to the next level with premium Kawasaki V-twin engines.

High-Back Suspension Seat
Radius X-Series features a deluxe high-back operator seat with three inches of adjustable suspension, plus an EVC stretch foam base and iso mounts at the seat base for superior all-day mowing comfort.

Heavy-Duty Fabricated Steel Frame
Fabricated and fully welded of high-strength rectangular steel tubing, the Radius frame places the heaviest components –– engine, transmission and fuel tank –– low and centralized in the frame. This lowers the machine’s center of gravity for increased traction and stability. New steel engine guards increase engine protection at the sides and rear of the machine, while also being easily removable for service access.

Upgraded Caster Assemblies
Radius X-Series models feature upgraded caster assemblies featuring maintenance-free tapered caster pivot bearings, with cast steel caster forks and large, semi-pneumatic caster tires.

Radius X-Series Model RDX691GKA524A3 at a Glance
Fuel Capacity - 7 gallon
Speed - 9 mph
Cutting Height Range - 1.5" - 5.0"
Coverage In Acres - 3-5
Acres Per Hour - 3.77

Features
3.77 Acres/Hour
52" Deck
Kawasaki V-Twin FX691V Engine
Full-floating UltraCut Series 4

Specifications

Equipment

UPC 193308243849
Width / Cutting Deck 52"
Onboard Intelligence none
Drive Hydro-Drive
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
Safety Package Operator Presence Controls (OPC) and drive system interlock, with safety interlock system indicators.
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; 7.30"-diameter cutter housing contains 17mm (.67"
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

Engine Brand Kawasaki
Transmission Brand Hydro-Gear
Transmission Speeds Infinitely Variable
Engine Model FX691V
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
Transmission Hydrostatic
Engine Spec FX691V_S25
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 ZT3400, 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
ROPS 2-post foldable ROPS standard with seat belt and latch.

Decks

Deck Style Floating Deck
Deck Style Description Full-floating UltraCut Series 4. Side discharge standard, with molded discharge chute and option to bag
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
Blades 3 Blades at 18.00" Length

Dimensions

Width 64.3"
Height 69.7"
Curb Weight 923
Length 80.3"

Certain features may require an additional add-on package that may not be included in the retail or sale price. Please contact the dealership for full details.

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