The John Deere D140 tractor tire size is front 15×6.00-6 and the rear is 20×10.00-8.
Front tire15×6.00-6
Rear tire20×10.00-8
Front/rear setupDifferent front and rear tire sizes
Tire pressure14 PSI, 10 PSI
Rim diameter6 in front, 8 in rear
John Deere D140 Tire Size Details
Front tire size
15×6.00-6
Rear tire size
20×10.00-8
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
10 in
Front rim diameter
6 in
Rear rim diameter
8 in
Approx front overall diameter
about 15 in
Approx rear overall diameter
about 20 in
Tire pressure
14 PSI, 10 PSI
Tire size alternatives / conversions
20×8-8, 20×10-8
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
8 in
Average
25.5 in
Low
0 in
High
50 in
John Deere D140 Extra Tire Notes
Tire size note
The John Deere D140 uses different front and rear tire sizes in this data: front 15×6.00-6 (6 in rim, 6 in width) and rear 20×10.00-8 (8 in rim, 10 in width)
Pressure note
For the John Deere D140 with front 15×6.00-6 and rear 20×10.00-8 tires, the pressure values captured in the answer are 14 PSI, 10 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 D140 data shows front 15×6.00-6 and rear 20×10.00-8. 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.
