The John Deere 6325 tractor tire size is front 7.50R18 and the rear is 18.4R30.
Front tire7.50R18
Rear tire18.4R30
Front/rear setupDifferent front and rear tire sizes
Tire pressure24 PSI, 44 PSI, 12 PSI, 14 PSI
Rim diameter18 in front, 30 in rear
John Deere 6325 Tire Size Details
Front tire size
7.50R18
Rear tire size
18.4R30
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
7.50R18, 18.4R30, 13.6R24
Front tire construction
Imperial radial
Rear tire construction
Imperial radial
Front section width
7.5 in
Rear section width
18.4 in
Front rim diameter
18 in
Rear rim diameter
30 in
Tire pressure
24 PSI, 44 PSI, 12 PSI, 14 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
18 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
30 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 6325 Extra Tire Notes
Tire size note
The John Deere 6325 uses different front and rear tire sizes in this data: front 7.50R18 (18 in rim, 7.5 in width) and rear 18.4R30 (30 in rim, 18.4 in width)
Pressure note
For the John Deere 6325 with front 7.50R18 and rear 18.4R30 tires, the pressure values captured in the answer are 24 PSI, 44 PSI, 12 PSI, 14 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 6325 data shows front 7.50R18 and rear 18.4R30. 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.
