The John Deere 40A tractor tire size is front 5.00-15 and the rear is 9-24.
Front tire5.00-15
Rear tire9-24
Front/rear setupDifferent front and rear tire sizes
Tire pressure20 PSI, 15 PSI
Rim diameter15 in front, 24 in rear
John Deere 40A Tire Size Details
Front tire size
5.00-15
Rear tire size
9-24
Front/rear setup
Different front and rear tire sizes
Original factory tire size
Front 6.00-16, Rear 12.4-28
R1 ag tire size
5.00-15, 9-24, 10-24
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
5 in
Rear section width
9 in
Front rim diameter
15 in
Rear rim diameter
24 in
Tire pressure
20 PSI, 15 PSI
Tire size alternatives / conversions
6.00-16, 7.50-16
Tire Size Comparison Chart
Front rim diameter comparison
This model
15 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
24 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 40A Extra Tire Notes
Tire size note
The John Deere 40A uses different front and rear tire sizes in this data: front 5.00-15 (15 in rim, 5 in width) and rear 9-24 (24 in rim, 9 in width)
Pressure note
For the John Deere 40A with front 5.00-15 and rear 9-24 tires, the pressure values captured in the answer are 20 PSI, 15 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 40A data shows front 5.00-15 and rear 9-24. 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.
