Quick answer:
The John Deere 7400 tractor tire size is front 10.00-16 and the rear is 18.4-38.
Front tire10.00-16
Rear tire18.4-38
Front/rear setupDifferent front and rear tire sizes
Rim diameter16 in front, 38 in rear
John Deere 7400 Tire Size Details
| Front tire size | 10.00-16 |
|---|---|
| Rear tire size | 18.4-38 |
| Front/rear setup | Different front and rear tire sizes |
| R1 ag tire size | 12.4-24, 18.4-34 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 10 in |
| Rear section width | 18.4 in |
| Front rim diameter | 16 in |
| Rear rim diameter | 38 in |
| Tire size alternatives / conversions | 18.4-38, 20.8-38, 11.2-24, 13.6-24, 480/80R38, 380/80R24 |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
John Deere 7400 Extra Tire Notes
| Tire size note | The John Deere 7400 uses different front and rear tire sizes in this data: front 10.00-16 (16 in rim, 10 in width) and rear 18.4-38 (38 in rim, 18.4 in width) |
|---|---|
| Front/rear matching note | The John Deere 7400 data shows front 10.00-16 and rear 18.4-38. 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.







