The Cub Cadet 129 has a hydrostatic transmission, with Infinite forward and reverse, a top forward speed of 5.5 mph (8.9 km/h), and reverse speed of 3.5 mph (5.6 km/h). Service details captured: fluid Hy-Tran and oil capacity 7 qt (6.6 L).
Transmission typeHydrostatic
Gears / rangesInfinite forward and reverse
Forward speed5.5 mph (8.9 km/h)
Transmission fluidHy-Tran
Cub Cadet 129 Transmission Specs
Transmission type
Hydrostatic
Gears / ranges / speeds
Infinite forward and reverse
Forward speed
5.5 mph (8.9 km/h)
Reverse speed
3.5 mph (5.6 km/h)
Transmission oil / fluid type
Hy-Tran
Transmission oil capacity
7 qt (6.6 L)
Transmission Comparison Charts
Forward speed comparison
This model
5.5 mph
Average
13 mph
Low
5 mph
High
25 mph
Reverse speed comparison
This model
3.5 mph
Average
6 mph
Low
2.5 mph
High
12 mph
Transmission oil capacity comparison
This model
7 qt
Average
28 qt
Low
4 qt
High
70 qt
Cub Cadet 129 Transmission Notes
Transmission type note
The Cub Cadet 129’s captured transmission type is Hydrostatic. Use that before comparing speed, oil capacity or service parts
Gears and range note
For the Cub Cadet 129, read Infinite forward and reverse as the range/speed side of the transmission, not automatically as a manual gearbox count
Forward / reverse speed note
Travel speed for the Cub Cadet 129 is listed as 5.5 mph (8.9 km/h) forward and 3.5 mph (5.6 km/h) reverse. Forward speed matters for transport; reverse speed matters for loader and yard work
Fluid and service note
For service work, the captured transmission fluid is Hy-Tran and the listed capacity is 7 qt (6.6 L). Confirm both in the manual before changing fluid
Buyer takeaway
If you are comparing tractors, judge the Cub Cadet 129 from Hydrostatic, Infinite forward and reverse, and 5.5 mph (8.9 km/h), not horsepower alone. Transmission setup decides how the tractor actually drives
The Cub Cadet 129 transmission is listed as Hydrostatic. That is the main drivetrain detail to check before comparing gears, ranges or speed.
What are the Cub Cadet 129 transmission gears or ranges?
The captured gears/speeds detail for the Cub Cadet 129 is Infinite forward and reverse.
Is the Cub Cadet 129 transmission speed good?
The captured travel speeds are 5.5 mph (8.9 km/h) forward and 3.5 mph (5.6 km/h) reverse. That is enough to compare it against similar tractors for mowing, transport and yard work.
What transmission fluid does the Cub Cadet 129 use?
The captured fluid spec is Hy-Tran, with transmission oil capacity listed as 7 qt (6.6 L). Confirm the exact fluid in the manual before servicing.
What should I check before buying a used Cub Cadet 129?
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 cubcadet.com website for official transmission information before servicing or buying parts.
