The John Deere 997 tractor tire size is front 15×6-6 and the rear is 26×12-12.
Front tire15×6-6
Rear tire26×12-12
Front/rear setupDifferent front and rear tire sizes
Tire pressure22 PSI, 20 PSI
Rim diameter6 in front, 12 in rear
John Deere 997 Tire Size Details
Front tire size
15×6-6
Rear tire size
26×12-12
Front/rear setup
Different front and rear tire sizes
Front tire construction
Flotation/implement tire
Rear tire construction
Flotation/implement tire
Front section width
6 in
Rear section width
12 in
Front rim diameter
6 in
Rear rim diameter
12 in
Approx front overall diameter
about 15 in
Approx rear overall diameter
about 26 in
Tire pressure
22 PSI, 20 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
6 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
12 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 997 Extra Tire Notes
Tire size note
The John Deere 997 uses different front and rear tire sizes in this data: front 15×6-6 (6 in rim, 6 in width) and rear 26×12-12 (12 in rim, 12 in width)
Pressure note
For the John Deere 997 with front 15×6-6 and rear 26×12-12 tires, the pressure values captured in the answer are 22 PSI, 20 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 997 data shows front 15×6-6 and rear 26×12-12. 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.
