Quick answer:
The Kubota A-17 tractor tire size is front 5.00-12 and rear 8.3-20. Other tire setup data found for this model includes Front 6-12, Rear 8-16; Front 6-12, Rear 8-18; Front 8.3-16, Rear 6.0-12, so confirm the wheel option before ordering.
Front tire5.00-12
Rear tire8.3-20
Front/rear setupDifferent front and rear tire sizes
Rim diameter12 in front, 20 in rear
Ballast25 gal
Other setup foundFront 6-12, Rear 8-16; Front 6-12, Rear 8-18; Front 8.3-16, Rear 6.0-12
Kubota A-17 Tire Size Details
| Front tire size | 5.00-12 |
|---|---|
| Rear tire size | 8.3-20 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 6-12, Rear 8-16 |
| Replacement tire size | Front 6-12, Rear 8-18 |
| R1 ag tire size | Front 8.3-16, Rear 6.0-12 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 5 in |
| Rear section width | 8.3 in |
| Front rim diameter | 12 in |
| Rear rim diameter | 20 in |
| Loaded rear tire ballast / fluid capacity | 25 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 A-17 Extra Tire Notes
| Tire size note | The Kubota A-17 uses different front and rear tire sizes in this data: front 5.00-12 (12 in rim, 5 in width) and rear 8.3-20 (20 in rim, 8.3 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota A-17. The main front/rear listing is Front 5.00-12, Rear 8.3-20. Other setup data found: Front 6-12, Rear 8-16; Front 6-12, Rear 8-18; Front 8.3-16, Rear 6.0-12. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
| Ballast note | For the Kubota A-17 rear 8.3-20 tires, the ballast figure captured in the answer is 25 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type |
| Front/rear matching note | The Kubota A-17 data shows front 5.00-12 and rear 8.3-20. When changing either size, front/rear rolling circumference and lead/lag need to stay within the correct range |
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.





