Quick answer:
The Kubota GL-35 tractor tire size is front 8-18 and rear 12.4-28.
Front tire8-18
Rear tire12.4-28
Front/rear setupDifferent front and rear tire sizes
Tire pressure35 PSI, 18 PSI
Rim diameter18 in front, 28 in rear
Ballast50 gal
Kubota GL-35 Tire Size Details
| Front tire size | 8-18 |
|---|---|
| Rear tire size | 12.4-28 |
| Front/rear setup | Different front and rear tire sizes |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 8 in |
| Rear section width | 12.4 in |
| Front rim diameter | 18 in |
| Rear rim diameter | 28 in |
| Tire pressure | 35 PSI, 18 PSI |
| Loaded rear tire ballast / fluid capacity | 50 gal |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
Benchmarks use typical low, average and high rim diameters for the compact / utility tractor category, not scraped low/high outliers.
Kubota GL-35 Extra Tire Notes
| Tire size note | The Kubota GL-35 uses different front and rear tire sizes in this data: front 8-18 (18 in rim, 8 in width) and rear 12.4-28 (28 in rim, 12.4 in width) |
|---|---|
| Pressure note | For the Kubota GL-35 with front 8-18 and rear 12.4-28 tires, the pressure values captured in the answer are 35 PSI, 18 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Ballast note | For the Kubota GL-35 rear 12.4-28 tires, the ballast figure captured in the answer is 50 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type |
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.





