The Kubota Z231KH tractor tire size is front 11×4-5 and rear 11×4-5. Other tire setup data found for this model includes Front 22×10-14, Rear 11×4-5; Front 11×4-5, Rear 22×10-14, so confirm the wheel option before ordering.
Front tire11×4-5
Rear tire11×4-5
Front/rear setupSame front and rear tire size
Tire pressure30 PSI, 20 PSI
Rim diameter5 in front/rear
Ballast10 gal, 83 lb, 110 lb
Other setup foundFront 22×10-14, Rear 11×4-5; Front 11×4-5, Rear 22×10-14
Kubota Z231KH Tire Size Details
Front tire size
11×4-5
Rear tire size
11×4-5
Front/rear setup
Same front and rear tire size
Other tire setup found
Front 22×10-14, Rear 11×4-5
Replacement tire size
Front 11×4-5, Rear 22×10-14
Tire construction
Flotation/implement tire
Section width
4 in
Rim diameter
5 in
Approx overall diameter
about 11 in
Tire pressure
30 PSI, 20 PSI
Loaded rear tire ballast / fluid capacity
10 gal, 83 lb, 110 lb
Tire Size Comparison Chart
Front rim diameter comparison
This model
5 in
Average
7 in
Low
6 in
High
10 in
Rear rim diameter comparison
This model
5 in
Average
10 in
Low
8 in
High
12 in
Benchmarks use typical low, average and high rim diameters for the lawn/garden tractor category, not scraped low/high outliers.
Kubota Z231KH Extra Tire Notes
Tire size note
The Kubota Z231KH uses 11×4-5 on both the front and rear in this data, so the same tire-size details apply to both axles: flotation/implement tire, 4 in section width, 5 in rim, approx 11 in overall diameter
Multiple setup note
This data has more than one tire setup for the Kubota Z231KH. The main front/rear listing is Front 11×4-5, Rear 11×4-5. Other setup data found: Front 22×10-14, Rear 11×4-5; Front 11×4-5, Rear 22×10-14. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size
Pressure note
For the Kubota Z231KH with front 11×4-5 and rear 11×4-5 tires, the pressure values captured in the answer are 30 PSI, 20 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the Kubota Z231KH rear 11×4-5 tires, the ballast figure captured in the answer is 10 gal, 83 lb, 110 lb. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
Front/rear matching note
The Kubota Z231KH data shows the same tire size front and rear (11×4-5). That usually makes the visible front/rear size relationship simpler, but approved tire and wheel combinations should still be checked before mixing brands or changing sizes
Official information note
Mistakes do happen. Tire sizes can change by year, axle, wheel/rim option, tyre brand, tread type and local market. Please check the tire sidewall, operator manual and official kubotausa.com website for official information.
