2019 Kubota Z421KWT-60

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The Z400 Series of zero-turn mowers delivers all that and more, including powerful engines matched with rugged transmissions, smooth operation levers, and, of course, Kubota's reputation for outstanding quality and durability. It's everything you want in a zero-turn mower.

  • Cup Holder & Storage
  • Hitch
  • Easy to Reach Operator Controls
  • Kawasaki Engines
  • Large Open Operator Platform
  • Wide Pneumatic Casters
  • Tool-Less Air Cleaner Access
  • Easy Under Seat Access
  • Wide Low Profile Rear Tires
  • Foldable ROPS For Easy Transport
  • Comfort And Convenience: Features to keep you feeling fresh and working longer - 12-volt power outlet to charge your phone and other accessories; Adjustable, high back seat; Storage box; Cup holder; Wide foot pan for plenty of leg room and easy entry/exit; The operation load of the dual operation levers can be adjusted to each operator's needs; Ergonomic control layout
  • Fabricated Mower Deck (48", 54", 60"): The Z400-Series are equipped with a 48", 54", or 60" mower deck. Within their 5-inch-deep welded structure, these mower decks provide a generous internal deck volume that contributes to enhancing both mowing performance and clipping discharge performance. Whether long, wet, or thick, grass is powerfully raised for efficient mowing. A reinforced spindle mount area improves durability.
  • Model: GH7301V
  • Type: Air cooled 2 cylinders gasoline engine
  • Engine Gross power: 24.0 hp
  • Total displacement: 44.3 cu.in. (726cc)
  • Starting system: Key switch
  • Overall length: 80.9 in. (2055 mm)
  • Overall width w/ mower: 73.6 in. (1870 mm)
  • Overall width w/o mower: 54.2 in. (1376 mm)
  • Overall height w/ ROPS (upright): 69.8 in. (1772 mm)
  • Overall height w/o ROPS (folded): 49.8 in. (1265 mm)
  • Wheelbase: 49.4 in. (1255 mm)
  • Tread Front: 37.2 in. (944 mm)
  • Tread Rear: 42.1 in. (1070 mm)
  • Front tire: 13x6.5-6, smooth pneumatic
  • Rear tire: 24x12.0-14, low profile tire
  • Weight (w/mower): 904 lb. (410 kg)
  • Transmission: Hydro-Gear® Commercial ZT3600®
  • Transmission system: 2-HST w/Gear reduction
  • Speed control: 2-hand lever
  • Traveling speed range Forward: 0-10.0 mph (0-16.0 km/h)
  • Traveling speed range Reverse: 0-5.0 mph (0-8.0 km/h)
  • Braking system: Cog style parking lock/Foot pedal
  • PTO type: Belt drive
  • Clutch type: Electric clutch
  • PTO brake: Dry disc
Mower Deck
  • Model: RCK60P-400Z
  • Mower deck type: Side discharge
  • Mower lift system: Mechanical/Foot pedal
  • Deck depth: 5.0 in. (127 mm)
  • Belt type: Belt drive
  • Deck steel thickness: 0.135 in. (3.4 mm)
  • Anti scalp roller: Rigid
  • Cutting width of mower: 60 in. (1524 mm)
  • Number of blades: 3
  • Cutting height: 1.5-5.0 in. (38-127 mm)
  • Mounting system of mower: Parallel linkage
  • Blade tip speed FPM: 18300
Other Features
  • Seat: Deluxe seat
  • Engine stop system: Key stop
  • Fuel tank capacity: 6.8 gal. (25.7 L)
  • Battery: U1 (12V, RC: 45 min, CCA: 300, CA: 410)
  • Generator capacity: 15A
  • Hour meter: Standard
  • Fuel gauge: Sight window
The company reserves the right to change the above specifications without notice. This brochure is for descriptive purposes only. Please contact your local Kubota dealer for warranty information. For your safety, Kubota strongly recommends the use of a Rollover Protective Structure (ROPS) and seat belt in almost all applications. For complete operational information, the operator’s manual should be consulted.



Engine Manufacturer
Kubota GH7301V
Horse Power
24.0 hp
Engine Type
Air cooled 2 cylinders gasoline engine
44.3 cu.in. (726cc)


Hydro-Gear® Commercial ZT3600®
Wheel Size
Front: 13x6.5-6; Rear: 24x12.0-14
Fuel Capacity
6.8 gal. (25.7 L)


Deck Size
60 in. (1524 mm)
Discharge Type


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