Kubota Z422KWT-60

The Kubota Z422KWT-60 is the carbureted 60-inch choice in this part of the Z400 range. It is worth assessing when the owner wants a broad deck and ZT-3600 drive without assuming that an EFI configuration is necessary for the job.

Follow the complete model suffix

Kubota's 2026 turf catalog pairs the Z422KWT-60 with the Kawasaki FS730V: 24 gross hp and 726 cc. The model shares the Z400 ZT-3600 drive specification, with a 10 mph forward maximum and a 6.8-US-gallon tank.

The Z452KWi-54 is an EFI comparison, but it also changes cutting width. Do not attribute every difference in a quotation to fuel delivery alone. Our EFI-versus-carburetor guide helps frame the engine decision without assuming a guaranteed fuel saving.

Check whether the wide deck fits

The listed RCK60P-400Z side-discharge deck is five inches deep. A mechanical foot lift selects cutting height from 1.5 to 5 inches in quarter-inch increments.

The catalog gives 73.6 inches of overall width with the mower chute. Measure the actual unit and fitted accessories rather than using its 60-inch cutting width for access planning. The narrower Z421KW-54 is another comparison if the complete footprint matters more than maximum coverage.

Confirm the supplied seat and regional terms

Kubota's dedicated Z400 specification sheet describes suspension seating, while the full-line accessory list also includes a suspension-seat kit. Have the dealer identify the seat included on the quoted machine and demonstrate its adjustment. This assessment does not assume that every listing includes an identical seat package.

The US warranty guide lists Z400 basic coverage of 48 months/500 hours for non-commercial home use and 24 months for commercial use, with engine terms handled separately. Canadian buyers should obtain the locally applicable specification and warranty rather than assume US documentation establishes either.

Shortlist this mower when its deck, service support and actual operator fit suit the route. Tank size and top speed alone do not establish how much work it will complete between stops.

Our ZT Score

7.6/10 — our research-based editorial assessment using the ZeroTurn scoring method.

• Cut quality (30%): 7.8/10. Five-inch-deep deck and quarter-inch adjustment support setup; actual finish is untested.
• Build & durability (25%): 8.0/10. ZT-3600 and documented Z400 hardware support build credit without lifespan claims.
• Comfort (20%): 7.3/10. Operator fit needs a demonstration because the included seat package requires confirmation.
• Value (15%): 7.1/10. Carbureted wide-deck equipment may suit the job; delivered pricing and regional support remain decisive.
• Ease of use (10%): 7.3/10. Foot lift aids adjustment, but chute-on width and access requirements reduce flexibility.

Provisional research-based editorial assessment, not a hands-on test. Cutting results, ride quality and service life have not been measured. Model-specific owner consensus and comparable delivered US/Canadian prices were not established. Value depends on the actual configuration, property and local service support.