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Kubota F2400 vs Kubota Z421
Verdict: Kubota F2400 vs Kubota Z421
The Kubota F2400 and the Kubota Z421 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 24 hp. Kubota Z421 is the lighter machine (394 kg vs 639 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota F2400 holds more fuel (34.1 L vs 25.7 L) for longer stints between fills. Kubota Z421 is the newer design (2017 vs 1988). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Kubota
71
Fit score
Best match
Clear
Kubota
71
Fit score
Best match
Clear
Rated power
24 hp
24 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
KubotaReference
KubotaReference
liquid-cooledReference
air-cooled vertical-shaft V-TwinReference
Drive
4x4 4WDReference
—
Variants
F2400
conventionalReference
—
FZ2400
zero-turn radiusReference
—
Z421
—
standardReference
Z422
—
deluxeReference
Engine
Fuel tank
34.1 LReference
25.7 LReference
Displacement
68.5 ciReference
44.3 ciReference
Bore/Stroke
78 x 78 mmReference
78 x 76 mmReference
Power (gross)
17.9 kWReference
17.9 kWReference
Air cleaner
dryReference
—
Rated RPM
2600Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Type
hydrostaticReference
belt-driven hydrostaticReference
Gears
infinite forward and reverseReference
infinite forward and reverseReference
Transmission
—
Hydro-Gear ZT3600Reference
PTO & Hydraulics
Pump flow
11.4 lpmReference
—
Front PTO
independentReference
—
Mid PTO
—
independentReference
Clutch
—
electricReference
Dimensions
Wheelbase
123 cmReference
125 cmReference
Weight
639 kgReference
74 kgReference
Front tire
23x10.50-12Reference
13x5-6Reference
Rear tire
16x6.50-8Reference
24x9.5-14Reference
Lawn/turf front
23x10.50-12Reference
13x5-6Reference
Lawn/turf rear
16x6.50-8Reference
24x9.5-14Reference
Length
218 cmReference
205 cmReference
Width
114 cmReference
123 cmReference
Height (steering wheel)
136 cmReference
—
Shipping weight
639 kgReference
—
Ground clearance
17 cmReference
—
Front tread
87 cmReference
94 cmReference
Rear tread
87 cmReference
100 cmReference
Height (ROPS)
—
177 cmReference
Height (Folded ROPS)
—
126 cmReference
Max Drawbar
—
34 kgReference
Max front axle
—
107 kgReference
Max rear axle
—
545 kgReference
Kubota F2400 attachments
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Charging amps
—
15Reference
Battery CCA
—
300Reference
Attachment overview
Kubota Z421 attachments
54" Mower deck
Cutting width
—
137 cmReference
Overall width
—
170 cmReference
Cut height
—
3 to 12 cmReference
Capacities
Max capacity
—
653 kgReference
Tow capacity
—
113 kgReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.