Introduction
Kubota Z421 Series Zero-Turn Mower
The Kubota Z421 is a professional-grade zero-turn mower from the Z400 series, engineered for high-efficiency lawn maintenance. Introduced in 2017, this machine is designed to provide precision, maneuverability, and durability for both residential and commercial applications.
Engine and Performance
The Z421 is powered by a 24 hp (17.9 kW) air-cooled, vertical-shaft V-Twin gasoline engine. With a displacement of 44.3 cubic inches (726 cc) and a 2-cylinder configuration, it provides the necessary torque for demanding mowing conditions. The engine utilizes an electric starter system operating on a 12-volt circuit.
Transmission and Drivetrain
The mower features the Hydro-Gear ZT3600 hydrostatic transmission, which allows for infinite forward and reverse speed control. This belt-driven system, combined with power steering and two-wheel drive, enables the zero-turn capability required for navigating complex landscapes and obstacles with high precision.
Mowing Deck and PTO
Equipped with a 54-inch cutting deck, the Z421 is optimized for covering large areas efficiently. The machine utilizes an independent mid-PTO system engaged by an electric clutch, allowing for seamless control of the mower deck attachments.
Dimensions and Operator Safety
The unit sits on a 49.4-inch (125 cm) wheelbase with a total length of 80.9 inches (205 cm). For operator safety, it includes a two-post folding Roll-Over Protective Structure (ROPS). Stability is provided by 13x5-6 front tires and 24x9.5-14 rear tires, designed specifically for turf applications.
Conclusion
The Kubota Z421 is a robust solution for operators seeking a reliable, high-performance zero-turn mower. Its combination of a powerful V-Twin engine, hydrostatic transmission, and 54-inch deck makes it well-suited for professional landscaping tasks requiring both speed and a refined finish.
Production Information of Kubota, Z421
- Zero-turn mower
- Original price was $6,649 in 2021
| Manufacturer | Kubota |
|---|
Dimension and Tires Information of Kubota, Z421
| Rear tread | 39.4 inches [100 cm] |
|---|---|
| Wheelbase | 49.4 inches [125 cm] |
| Height (Folded ROPS) | 49.8 inches [126 cm] |
| Height (ROPS) | 69.8 inches [177 cm] |
| Length | 80.9 inches [205 cm] |
| Front tread | 37.2 inches [94 cm] |
| Width | 48.7 inches [123 cm] |
| Lawn/turf front | 13x5-6 |
|---|---|
| Lawn/turf rear | 24x9.5-14 |
Engine Specifications of Kubota, Z421
- Air-cooled vertical-shaft V-Twin
- Gasoline
- 2-cylinder
| Power (gross) | 24 hp [17.9 kW] |
|---|---|
| Displacement | 726 cc [44.3 ci] |
| Starter | Electric |
| Bore/Stroke | 3.07x2.99 inches [78 x 76 mm] |
| Starter volts | 12 |
Transmission Information of Kubota, Z421
Transmission variants 1
| Transmission | Hydro-Gear ZT3600 |
|---|---|
| Type | Belt-driven hydrostatic |
| Gears | Infinite forward and reverse |
Transmission variants 2
Mechanical Specs of Kubota, Z421
- Two-wheel drive
- Power steering
- Two-post folding ROPS.
Power Information of Kubota, Z421
| Mid PTO | Independent |
|---|---|
| Clutch | Electric |
Electrical System of Kubota, Z421
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 15 |
| Battery CCA | 300 |
Where it sits
With 24 HP, the Kubota Z421 sits just above Z411 (22 HP) in Kubota's range. Its power puts it in the 68th percentile of 2010s models in our database (783 machines).
Frequently asked questions
How much horsepower does the Kubota Z421 have?
The Kubota Z421 delivers 24 HP.
What years was the Kubota Z421 produced?
The Kubota Z421 was produced in 2017+.
What engine does the Kubota Z421 have?
The Kubota Z421 is powered by a Gasoline, 2-cylinder engine.
What transmission does the Kubota Z421 use?
The Kubota Z421 uses a Hydro-Gear ZT3600 transmission.
Is the Kubota Z421 4WD?
The Kubota Z421 is available in 2WD.