Quick answer:
The John Deere 2520 tractor tire size is front 23×8.5-12 and the rear is 36×14.00-17.
Front tire23×8.5-12
Rear tire36×14.00-17
Front/rear setupDifferent front and rear tire sizes
Tire pressure35 PSI, 18 PSI
Rim diameter12 in front, 17 in rear
Ballast25 gal
John Deere 2520 Tire Size Details
| Front tire size | 23×8.5-12 |
|---|---|
| Rear tire size | 36×14.00-17 |
| Front/rear setup | Different front and rear tire sizes |
| Original factory tire size | Front 23×8.5-12, Rear 36×14.00-17.5 |
| Replacement tire size | Front 6.00-16, Rear 13.6-38 |
| R1 ag tire size | 6.00-16, 13.6-38 |
| Front tire construction | Flotation/implement tire |
| Rear tire construction | Flotation/implement tire |
| Front section width | 8.5 in |
| Rear section width | 14 in |
| Front rim diameter | 12 in |
| Rear rim diameter | 17 in |
| Approx front overall diameter | about 23 in |
| Approx rear overall diameter | about 36 in |
| Tire pressure | 35 PSI, 18 PSI |
| Loaded rear tire ballast / fluid capacity | 25 gal |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
John Deere 2520 Extra Tire Notes
| Tire size note | The John Deere 2520 uses different front and rear tire sizes in this data: front 23×8.5-12 (12 in rim, 8.5 in width) and rear 36×14.00-17 (17 in rim, 14 in width) |
|---|---|
| Pressure note | For the John Deere 2520 with front 23×8.5-12 and rear 36×14.00-17 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 John Deere 2520 rear 36×14.00-17 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 John Deere 2520 data shows front 23×8.5-12 and rear 36×14.00-17. 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.







