The John Deere Z820A tractor tire size is front 13×6.5-6 and the rear is 13×6.5-6.
Front tire13×6.5-6
Rear tire13×6.5-6
Front/rear setupSame front and rear tire size
Tire pressure35 PSI, 14 PSI
Rim diameter6 in front/rear
John Deere Z820A Tire Size Details
Front tire size
13×6.5-6
Rear tire size
13×6.5-6
Front/rear setup
Same front and rear tire size
Original factory tire size
Front 13×6.5-6, Rear 24×12-12
Replacement tire size
Front 13×6.5-6, Rear 24×12-12
R1 ag tire size
13×6.5-6, 24×12-12
Tire construction
Flotation/implement tire
Section width
6.5 in
Rim diameter
6 in
Approx overall diameter
about 13 in
Tire pressure
35 PSI, 14 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
6 in
Average
14.8 in
Low
6 in
High
28 in
Rear rim diameter comparison
This model
6 in
Average
22.2 in
Low
6 in
High
38 in
John Deere Z820A Extra Tire Notes
Tire size note
The John Deere Z820A uses 13×6.5-6 on both the front and rear in this data, so the same tire-size details apply to both axles: flotation/implement tire, 6.5 in section width, 6 in rim, approx 13 in overall diameter
Pressure note
For the John Deere Z820A with front 13×6.5-6 and rear 13×6.5-6 tires, the pressure values captured in the answer are 35 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 Z820A data shows the same tire size front and rear (13×6.5-6). That usually makes the visible front/rear size relationship simpler, but approved tire and wheel combinations should still be checked before mixing brands or changing sizes
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.
