The Kubota Z421T has a hydrostatic transmission, with Infinite forward and reverse. Service details captured: oil capacity 3.5 qt (3.3 L).
Transmission typeHydrostatic
Gears / rangesInfinite forward and reverse
Kubota Z421T Transmission Specs
Transmission type
Hydrostatic
Gears / ranges / speeds
Infinite forward and reverse
Transmission oil capacity
3.5 qt (3.3 L)
Transmission Comparison Charts
Transmission oil capacity comparison
This model
3.5 qt
Average
28 qt
Low
4 qt
High
70 qt
Kubota Z421T Transmission Notes
Transmission type note
The Kubota Z421T’s captured transmission type is Hydrostatic. Use that before comparing speed, oil capacity or service parts
Gears and range note
For the Kubota Z421T, read Infinite forward and reverse as the range/speed side of the transmission, not automatically as a manual gearbox count
Fluid and service note
For service work, the captured transmission oil capacity is 3.5 qt (3.3 L). Confirm the approved fluid type before servicing
Buyer takeaway
If you are comparing tractors, judge the Kubota Z421T from Hydrostatic and Infinite forward and reverse, not horsepower alone. Transmission setup decides how the tractor actually drives
The clean captured transmission type for the Kubota Z421T is Hydrostatic. Use that as the first answer, then check gears/ranges and travel speed.
Does the Kubota Z421T have fixed gears?
The listed transmission detail is Infinite forward and reverse. If the tractor is hydrostatic, treat this as range/speed information rather than a normal manual gear count.
Are the Kubota Z421T forward and reverse speeds listed?
This row does not show clean forward/reverse speed values. Check the operator manual or official spec sheet for exact travel speed.
How much transmission oil does the Kubota Z421T take?
The captured transmission oil capacity for the Kubota Z421T is 3.5 qt (3.3 L). The fluid type was not cleanly captured in this row.
What should I check before buying a used Kubota Z421T?
Confirm the exact transmission type, test forward and reverse operation, check for fluid leaks, and verify any service history for the transmission or transaxle.
Official information note
Mistakes do happen. Tractor transmission specs can change by year, market, serial range, transaxle, trim and option package. Please check the operator manual, service manual, build sheet and official kubotausa.com website for official transmission information before servicing or buying parts.
