The Kubota M8580 tractor tire size is front 12.4-24 and rear 18.4-34. Other tire setup data found for this model includes Front 7.50-18, Rear 16.9-30; Front 13.6-24, Rear 18.4-34, so confirm the wheel option before ordering.
Front tire12.4-24
Rear tire18.4-34
Front/rear setupDifferent front and rear tire sizes
Tire pressure35 PSI, 18 PSI
Rim diameter24 in front, 34 in rear
Ballast35 gal
Other setup foundFront 7.50-18, Rear 16.9-30; Front 13.6-24, Rear 18.4-34
Kubota M8580 Tire Size Details
Front tire size
12.4-24
Rear tire size
18.4-34
Front/rear setup
Different front and rear tire sizes
Other tire setup found
Front 7.50-18, Rear 16.9-30
Replacement tire size
Front 13.6-24, Rear 18.4-34
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
12.4 in
Rear section width
18.4 in
Front rim diameter
24 in
Rear rim diameter
34 in
Tire pressure
35 PSI, 18 PSI
Loaded rear tire ballast / fluid capacity
35 gal
Tire Size Comparison Chart
Front rim diameter comparison
This model
24 in
Average
24 in
Low
16 in
High
38 in
Rear rim diameter comparison
This model
34 in
Average
38 in
Low
28 in
High
54 in
Benchmarks use typical low, average and high rim diameters for the utility / row-crop / large ag tractor category, not scraped low/high outliers.
Kubota M8580 Extra Tire Notes
Tire size note
The Kubota M8580 uses different front and rear tire sizes in this data: front 12.4-24 (24 in rim, 12.4 in width) and rear 18.4-34 (34 in rim, 18.4 in width)
Multiple setup note
This data has more than one tire setup for the Kubota M8580. The main front/rear listing is Front 12.4-24, Rear 18.4-34. Other setup data found: Front 7.50-18, Rear 16.9-30; Front 13.6-24, Rear 18.4-34. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size
Pressure note
For the Kubota M8580 with front 12.4-24 and rear 18.4-34 tires, the pressure values captured in the answer are 35 PSI, 18 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the Kubota M8580 rear 18.4-34 tires, the ballast figure captured in the answer is 35 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
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 kubotausa.com website for official information.
