Quick answer:
The John Deere A tractor tire size is front 4.00-15 and the rear is 9-32.
Front tire4.00-15
Rear tire9-32
Front/rear setupDifferent front and rear tire sizes
Tire pressure18 PSI, 35 PSI
Rim diameter15 in front, 32 in rear
John Deere A Tire Size Details
| Front tire size | 4.00-15 |
|---|---|
| Rear tire size | 9-32 |
| Front/rear setup | Different front and rear tire sizes |
| R1 ag tire size | 5.50-16, 11.2-38 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 4 in |
| Rear section width | 9 in |
| Front rim diameter | 15 in |
| Rear rim diameter | 32 in |
| Tire pressure | 18 PSI, 35 PSI |
| Tire size alternatives / conversions | 6.00-16, 7.00-16 |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
John Deere A Extra Tire Notes
| Tire size note | The John Deere A uses different front and rear tire sizes in this data: front 4.00-15 (15 in rim, 4 in width) and rear 9-32 (32 in rim, 9 in width) |
|---|---|
| Pressure note | For the John Deere A with front 4.00-15 and rear 9-32 tires, the pressure values captured in the answer are 18 PSI, 35 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Front/rear matching note | The John Deere A data shows front 4.00-15 and rear 9-32. 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 deere.com website for official information.







