The Kubota L3901 has a hydrostatic transmission, with a top forward speed of 14.2 mph (22.9 km/h) and reverse speed of 6.9 mph (11.1 km/h). Service details captured: fluid Kubota Super UDT and oil capacity 30 qt (28.4 L).
Kubota L3901 Transmission Specs
| Transmission type | Hydrostatic |
|---|---|
| Forward speed | 14.2 mph (22.9 km/h) |
| Reverse speed | 6.9 mph (11.1 km/h) |
| Transmission oil / fluid type | Kubota Super UDT |
| Transmission oil capacity | 30 qt (28.4 L) |
Transmission Comparison Charts
Forward speed comparison
Reverse speed comparison
Transmission oil capacity comparison
Kubota L3901 Transmission Notes
| Transmission type note | The Kubota L3901’s captured transmission type is Hydrostatic. Use that before comparing speed, oil capacity or service parts |
|---|---|
| Forward / reverse speed note | The useful speed numbers are 14.2 mph (22.9 km/h) forward and 6.9 mph (11.1 km/h) reverse. That gives a better driving comparison than transmission type alone |
| Fluid and service note | For service work, the captured transmission fluid is Kubota Super UDT and the listed capacity is 30 qt (28.4 L). Confirm both in the manual before changing fluid |
| Buyer takeaway | If you are comparing tractors, judge the Kubota L3901 from Hydrostatic and 14.2 mph (22.9 km/h), not horsepower alone. Transmission setup decides how the tractor actually drives |
| Source summary | type: Hydrostatic; forward speed: 14.2 mph (22.9 km/h); reverse speed: 6.9 mph (11.1 km/h); fluid: Kubota Super UDT; oil capacity: 30 qt (28.4 L) |
Kubota L3901 Transmission FAQ
What transmission does the Kubota L3901 have?
The Kubota L3901 transmission is listed as Hydrostatic. That is the main drivetrain detail to check before comparing gears, ranges or speed.
Does every Kubota L3901 transmission have a gear count?
No. Hydrostatic and CVT-style transmissions may be listed by range or variable speed instead of simple forward/reverse gear numbers.
Is the Kubota L3901 transmission speed good?
The captured travel speeds are 14.2 mph (22.9 km/h) forward and 6.9 mph (11.1 km/h) reverse. That is enough to compare it against similar tractors for mowing, transport and yard work.
How much transmission oil does the Kubota L3901 take?
The listed transmission oil capacity is 30 qt (28.4 L), and the captured fluid type is Kubota Super UDT.
What should I check before buying a used Kubota L3901?
Confirm the exact transmission type, test forward and reverse operation, check for fluid leaks, and verify any service history for the transmission or transaxle.
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.

