The Kubota GL21 has a shuttle-shift transmission, with 16 forward / 16 reverse. Service details captured: fluid Kubota Super UDT2.
Transmission typeShuttle shift
Gears / ranges16 forward / 16 reverse
Transmission fluidKubota Super UDT2
Kubota GL21 Transmission Specs
Transmission type
Shuttle shift
Gears / ranges / speeds
16 forward / 16 reverse
Forward gears
16
Reverse gears
16
Transmission control
shuttle shift
Transmission oil / fluid type
Kubota Super UDT2
Transmission Comparison Charts
Forward gear count comparison
This model
16 gears
Average
8 gears
Low
2 gears
High
24 gears
Kubota GL21 Transmission Notes
Transmission type note
The transmission type is the headline spec here. On the Kubota GL21, the clean captured type is Shuttle shift
Gears and range note
The Kubota GL21’s listed gears/speeds are 16 forward / 16 reverse. That is one of the main specs buyers check when comparing tractor transmissions
Transmission control note
Transmission control on the Kubota GL21 is captured as shuttle shift. That is a buyer-detail worth checking on the actual tractor
Fluid and service note
For service work, the captured transmission fluid type is Kubota Super UDT2. The oil capacity was not cleanly captured in this row
Buyer takeaway
If you are comparing tractors, judge the Kubota GL21 from Shuttle shift and 16 forward / 16 reverse, not horsepower alone. Transmission setup decides how the tractor actually drives
The clean captured transmission type for the Kubota GL21 is Shuttle shift. Use that as the first answer, then check gears/ranges and travel speed.
Does the Kubota GL21 have fixed gears?
The listed transmission detail is 16 forward / 16 reverse. If the tractor is hydrostatic, treat this as range/speed information rather than a normal manual gear count.
Are the Kubota GL21 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.
Is the Kubota GL21 transmission fluid listed?
Yes, the captured fluid type is Kubota Super UDT2. Confirm the capacity in the operator manual before servicing.
What transmission control does the Kubota GL21 use?
The captured transmission control detail is shuttle shift. That affects operator feel during mowing, loader work and repeated direction changes.
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.
